---
_id: '53080'
abstract:
- lang: eng
text: Quantitative speciation data for alternative fuels is highly desired to assess
their emission potential and to develop and validate chemical kinetic models.
In terms of substitute choices for fossil diesel are oxymethylene ethers (OMEs)
strongly discussed. Due to the absence of carbon-carbon bonds, soot emis-sions
from combustion of OMEs are low, but significant emissions of unregulated pollutants
such as alde-hydes emerge. The combustion behavior of OME fuels with different
chain lengths, OME0-4, was investigated in lam-inar premixed low-pressure flames
using complementary molecular-beam mass spectrometry (MBMS) techniques. MBMS sampling
provides an in-situ access directly into the reaction zone of the flame. Al-most
all chemical species involved in the oxidation process can be detected and quantified
simultane-ously. Neat OME0-3 flames were analyzed by electron ionization (EI)
MBMS with high mass resolution ( R approximate to 3900) providing exact elementary
composition. To obtain isomer-specific information, an OME1- doped hydrogen flame
and a stochiometric OME4 flame were studied by double-imaging photoelectron photoion
coincidence (i2PEPICO) spectroscopy. Both, EI-MBMS detection and i2PEPICO spectroscopy,
en-ables a complete overview of all intermediates. The results show a dominance
of oxygenated intermediates for all measured conditions. Mole fraction profiles
for the most important species are presented (i.e. formaldehyde, methanol, methyl
formate and formic acid) and compared to modeling results. Hydrocarbons with more
than four carbon atoms were not detected under the investigated conditions. Isomers
such as ethanol/dimethyl ether (m/z = 46) and ethenol/acetaldehyde (m/z = 44)
could be separated using threshold photoelectron spectra for clear iden-tification
and photoionization efficiency curves for quantification. This investigation permits
the discus-sion and analysis of systematic trends, including intermediate species,
for the combustion of the studied series of oxymethylene ether fuels. (c) 2022
The Combustion Institute. Published by Elsevier Inc. All rights reserved.
article_number: '112060'
article_type: original
author:
- first_name: Nina
full_name: Gaiser, Nina
last_name: Gaiser
- first_name: Hao
full_name: Zhang, Hao
last_name: Zhang
- first_name: Thomas
full_name: Bierkandt, Thomas
last_name: Bierkandt
- first_name: Steffen
full_name: Schmitt, Steffen
last_name: Schmitt
- first_name: Julia
full_name: Zinsmeister, Julia
last_name: Zinsmeister
- first_name: Trupti
full_name: Kathrotia, Trupti
last_name: Kathrotia
- first_name: Patrick
full_name: Hemberger, Patrick
last_name: Hemberger
- first_name: Shkelqim
full_name: Shaqiri, Shkelqim
last_name: Shaqiri
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
- first_name: Manfred
full_name: Aigner, Manfred
last_name: Aigner
- first_name: Patrick
full_name: Oßwald, Patrick
last_name: Oßwald
- first_name: Markus
full_name: Köhler, Markus
last_name: Köhler
citation:
ama: Gaiser N, Zhang H, Bierkandt T, et al. Investigation of the combustion chemistry
in laminar, low-pressure oxymethylene ether flames (OME0–4). Combustion and
Flame. 2022;243. doi:10.1016/j.combustflame.2022.112060
apa: Gaiser, N., Zhang, H., Bierkandt, T., Schmitt, S., Zinsmeister, J., Kathrotia,
T., Hemberger, P., Shaqiri, S., Kasper, T., Aigner, M., Oßwald, P., & Köhler,
M. (2022). Investigation of the combustion chemistry in laminar, low-pressure
oxymethylene ether flames (OME0–4). Combustion and Flame, 243, Article
112060. https://doi.org/10.1016/j.combustflame.2022.112060
bibtex: '@article{Gaiser_Zhang_Bierkandt_Schmitt_Zinsmeister_Kathrotia_Hemberger_Shaqiri_Kasper_Aigner_et
al._2022, title={Investigation of the combustion chemistry in laminar, low-pressure
oxymethylene ether flames (OME0–4)}, volume={243}, DOI={10.1016/j.combustflame.2022.112060},
number={112060}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Gaiser,
Nina and Zhang, Hao and Bierkandt, Thomas and Schmitt, Steffen and Zinsmeister,
Julia and Kathrotia, Trupti and Hemberger, Patrick and Shaqiri, Shkelqim and Kasper,
Tina and Aigner, Manfred and et al.}, year={2022} }'
chicago: Gaiser, Nina, Hao Zhang, Thomas Bierkandt, Steffen Schmitt, Julia Zinsmeister,
Trupti Kathrotia, Patrick Hemberger, et al. “Investigation of the Combustion Chemistry
in Laminar, Low-Pressure Oxymethylene Ether Flames (OME0–4).” Combustion and
Flame 243 (2022). https://doi.org/10.1016/j.combustflame.2022.112060.
ieee: 'N. Gaiser et al., “Investigation of the combustion chemistry in laminar,
low-pressure oxymethylene ether flames (OME0–4),” Combustion and Flame,
vol. 243, Art. no. 112060, 2022, doi: 10.1016/j.combustflame.2022.112060.'
mla: Gaiser, Nina, et al. “Investigation of the Combustion Chemistry in Laminar,
Low-Pressure Oxymethylene Ether Flames (OME0–4).” Combustion and Flame,
vol. 243, 112060, Elsevier BV, 2022, doi:10.1016/j.combustflame.2022.112060.
short: N. Gaiser, H. Zhang, T. Bierkandt, S. Schmitt, J. Zinsmeister, T. Kathrotia,
P. Hemberger, S. Shaqiri, T. Kasper, M. Aigner, P. Oßwald, M. Köhler, Combustion
and Flame 243 (2022).
date_created: 2024-03-27T16:18:39Z
date_updated: 2024-03-27T16:20:42Z
department:
- _id: '728'
doi: 10.1016/j.combustflame.2022.112060
intvolume: ' 243'
keyword:
- General Physics and Astronomy
- Energy Engineering and Power Technology
- Fuel Technology
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
publication: Combustion and Flame
publication_identifier:
issn:
- 0010-2180
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Investigation of the combustion chemistry in laminar, low-pressure oxymethylene
ether flames (OME0–4)
type: journal_article
user_id: '94562'
volume: 243
year: '2022'
...
---
_id: '53081'
abstract:
- lang: eng
text: Recent progress in molecular combustion chemistry allows for detailed investigation
of the intermediate species pool even for complex chemical fuel compositions,
as occur for technical fuels. This study pro-vides detailed investigation of a
comprehensive set of complex alternative gasoline fuels obtained from laminar
flow reactors equipped with molecular-beam sampling techniques for observation
of the com-bustion intermediate species pool in homogeneous gas phase reactions.
The combination of ionization techniques including double-imaging photoelectron
photoion coincidence (i2PEPICO) spectroscopy enables deeper mechanistic insights
into the underlying reaction network relevant to technical fuels. The se-lected
fuels focus on contemporary automotive engine application as drop-in fuels compliant
to European EN 228 specification for gasoline. Therefore, potential alternative
gasoline blends containing oxygenated hydrocarbons as octane improvers obtainable
from bio-technological production routes, e.g., ethanol, iso- butanol, methyl
tert -butyl ether (MTBE), and ethyl tert -butyl ether (ETBE), as well as a Fischer-Tropsch
surrogate were investigated. The fuel set is completed by two synthetic naphtha
fractions obtained from Fischer-Tropsch and methanol-to-gasoline processes alongside
with a fossil reference gasoline. In total, speciation data for 11 technical fuels
from two atmospheric flow reactor setups are presented. Detailed main and intermediate
species profiles are provided for slightly rich ( 4) = 1.2) and lean ( 4) = 0.8)
con-ditions for intermediate to high temperatures. Complementary, the isomer distribution
on different mass channels, like m/z = 78 u fulvene/benzene, of four gasolines
was investigated. Experimental findings are analyzed in terms of the detailed
fuel composition and literature findings for molecular combustion chemistry. Influences
of oxygenated fuel components as well as composition of the hydrocarbon frac-tions
are examined with a particular focus on the soot precursor chemistry. This dataset
is available for validation of chemical kinetic mechanisms for realistic gasolines
containing oxygenated hydrocarbons.(c) 2021 The Combustion Institute. Published
by Elsevier Inc. All rights reserved.
article_number: '111961'
article_type: original
author:
- first_name: Julia
full_name: Zinsmeister, Julia
last_name: Zinsmeister
- first_name: Nina
full_name: Gaiser, Nina
last_name: Gaiser
- first_name: Jens
full_name: Melder, Jens
last_name: Melder
- first_name: Thomas
full_name: Bierkandt, Thomas
last_name: Bierkandt
- first_name: Patrick
full_name: Hemberger, Patrick
last_name: Hemberger
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
- first_name: Manfred
full_name: Aigner, Manfred
last_name: Aigner
- first_name: Markus
full_name: Köhler, Markus
last_name: Köhler
- first_name: Patrick
full_name: Oßwald, Patrick
last_name: Oßwald
citation:
ama: 'Zinsmeister J, Gaiser N, Melder J, et al. On the diversity of fossil and alternative
gasoline combustion chemistry: A comparative flow reactor study. Combustion
and Flame. 2022;243. doi:10.1016/j.combustflame.2021.111961'
apa: 'Zinsmeister, J., Gaiser, N., Melder, J., Bierkandt, T., Hemberger, P., Kasper,
T., Aigner, M., Köhler, M., & Oßwald, P. (2022). On the diversity of fossil
and alternative gasoline combustion chemistry: A comparative flow reactor study.
Combustion and Flame, 243, Article 111961. https://doi.org/10.1016/j.combustflame.2021.111961'
bibtex: '@article{Zinsmeister_Gaiser_Melder_Bierkandt_Hemberger_Kasper_Aigner_Köhler_Oßwald_2022,
title={On the diversity of fossil and alternative gasoline combustion chemistry:
A comparative flow reactor study}, volume={243}, DOI={10.1016/j.combustflame.2021.111961},
number={111961}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Zinsmeister,
Julia and Gaiser, Nina and Melder, Jens and Bierkandt, Thomas and Hemberger, Patrick
and Kasper, Tina and Aigner, Manfred and Köhler, Markus and Oßwald, Patrick},
year={2022} }'
chicago: 'Zinsmeister, Julia, Nina Gaiser, Jens Melder, Thomas Bierkandt, Patrick
Hemberger, Tina Kasper, Manfred Aigner, Markus Köhler, and Patrick Oßwald. “On
the Diversity of Fossil and Alternative Gasoline Combustion Chemistry: A Comparative
Flow Reactor Study.” Combustion and Flame 243 (2022). https://doi.org/10.1016/j.combustflame.2021.111961.'
ieee: 'J. Zinsmeister et al., “On the diversity of fossil and alternative
gasoline combustion chemistry: A comparative flow reactor study,” Combustion
and Flame, vol. 243, Art. no. 111961, 2022, doi: 10.1016/j.combustflame.2021.111961.'
mla: 'Zinsmeister, Julia, et al. “On the Diversity of Fossil and Alternative Gasoline
Combustion Chemistry: A Comparative Flow Reactor Study.” Combustion and Flame,
vol. 243, 111961, Elsevier BV, 2022, doi:10.1016/j.combustflame.2021.111961.'
short: J. Zinsmeister, N. Gaiser, J. Melder, T. Bierkandt, P. Hemberger, T. Kasper,
M. Aigner, M. Köhler, P. Oßwald, Combustion and Flame 243 (2022).
date_created: 2024-03-27T16:19:47Z
date_updated: 2024-03-27T16:20:39Z
department:
- _id: '728'
doi: 10.1016/j.combustflame.2021.111961
intvolume: ' 243'
keyword:
- General Physics and Astronomy
- Energy Engineering and Power Technology
- Fuel Technology
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
publication: Combustion and Flame
publication_identifier:
issn:
- 0010-2180
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 'On the diversity of fossil and alternative gasoline combustion chemistry:
A comparative flow reactor study'
type: journal_article
user_id: '94562'
volume: 243
year: '2022'
...
---
_id: '47552'
author:
- first_name: Felix
full_name: Herrmann, Felix
last_name: Herrmann
- first_name: Marcus
full_name: Grünewald, Marcus
last_name: Grünewald
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
citation:
ama: Herrmann F, Grünewald M, Riese J. Model-based design of a segmented reactor
for the flexible operation of the methanation of CO2. International Journal
of Hydrogen Energy. 2022;48(25):9377-9389. doi:10.1016/j.ijhydene.2022.12.122
apa: Herrmann, F., Grünewald, M., & Riese, J. (2022). Model-based design of
a segmented reactor for the flexible operation of the methanation of CO2. International
Journal of Hydrogen Energy, 48(25), 9377–9389. https://doi.org/10.1016/j.ijhydene.2022.12.122
bibtex: '@article{Herrmann_Grünewald_Riese_2022, title={Model-based design of a
segmented reactor for the flexible operation of the methanation of CO2}, volume={48},
DOI={10.1016/j.ijhydene.2022.12.122},
number={25}, journal={International Journal of Hydrogen Energy}, publisher={Elsevier
BV}, author={Herrmann, Felix and Grünewald, Marcus and Riese, Julia}, year={2022},
pages={9377–9389} }'
chicago: 'Herrmann, Felix, Marcus Grünewald, and Julia Riese. “Model-Based Design
of a Segmented Reactor for the Flexible Operation of the Methanation of CO2.”
International Journal of Hydrogen Energy 48, no. 25 (2022): 9377–89. https://doi.org/10.1016/j.ijhydene.2022.12.122.'
ieee: 'F. Herrmann, M. Grünewald, and J. Riese, “Model-based design of a segmented
reactor for the flexible operation of the methanation of CO2,” International
Journal of Hydrogen Energy, vol. 48, no. 25, pp. 9377–9389, 2022, doi: 10.1016/j.ijhydene.2022.12.122.'
mla: Herrmann, Felix, et al. “Model-Based Design of a Segmented Reactor for the
Flexible Operation of the Methanation of CO2.” International Journal of Hydrogen
Energy, vol. 48, no. 25, Elsevier BV, 2022, pp. 9377–89, doi:10.1016/j.ijhydene.2022.12.122.
short: F. Herrmann, M. Grünewald, J. Riese, International Journal of Hydrogen Energy
48 (2022) 9377–9389.
date_created: 2023-10-04T14:12:06Z
date_updated: 2024-03-28T13:39:32Z
doi: 10.1016/j.ijhydene.2022.12.122
extern: '1'
intvolume: ' 48'
issue: '25'
keyword:
- Energy Engineering and Power Technology
- Condensed Matter Physics
- Fuel Technology
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
page: 9377-9389
publication: International Journal of Hydrogen Energy
publication_identifier:
issn:
- 0360-3199
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Model-based design of a segmented reactor for the flexible operation of the
methanation of CO2
type: journal_article
user_id: '101499'
volume: 48
year: '2022'
...
---
_id: '36815'
abstract:
- lang: eng
text: Iso-octane is frequently used as a surrogate fuel or as a component
in primary reference fuel blends when low-temperature combustion strategies in
engines are investigated. To develop control strategies for these engines, the
reaction kinetics of iso-octane must be known starting from the low temperatures
and intermediate pressures before ignition to the high temperatures and pressures
of combustion. This work adds new experimental data sets to the validation data
for reaction mechanism development by investigating the oxidation of iso-octane
in stoichiometric mixtures in a flow reactor at pressures of p
= 1, 10, and 20 bar and 473K ≤ T ≤ 973 K. The experimental data are compared to
simulations with recent reaction mechanisms [Atef et al., Combustion and Flame
178, (2017), Bagheri et al., Combustion and Flame 212, (2020), Cai et al., Proceedings
of the Combustion Institute 37, (2018), Fang et al., Combustion and Flame 214,
(2020)]. The comparison between experimental and simulated mole fractions as function
of temperature show reasonable agreement for all investigated pressures. In particular,
the experimentally observed onset of low-temperature reactivity above a certain
pressure, the shift of the negative temperature coefficient (NTC) regime with
increasing pressure to higher temperatures, and the acceleration of the high-temperature
chemistry are captured well in the simulations. Deviations between experimental
and simulated results are discussed in detail for the reactivity of iso-octane
and some key intermediates such as 2,2,4,4-tetramethyl-tetrahydrofuran, iso-butene
and acetone at low temperatures.
author:
- first_name: S.
full_name: Shaqiri, S.
last_name: Shaqiri
- first_name: D.
full_name: Kaczmarek, D.
last_name: Kaczmarek
- first_name: F.
full_name: vom Lehn, F.
last_name: vom Lehn
- first_name: J.
full_name: Beeckmann, J.
last_name: Beeckmann
- first_name: H.
full_name: Pitsch, H.
last_name: Pitsch
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
citation:
ama: Shaqiri S, Kaczmarek D, vom Lehn F, Beeckmann J, Pitsch H, Kasper T. Experimental
Investigation of the Pressure Dependence of Iso-Octane Combustion. Frontiers
in Energy Research. 2022;10. doi:10.3389/fenrg.2022.859112
apa: Shaqiri, S., Kaczmarek, D., vom Lehn, F., Beeckmann, J., Pitsch, H., &
Kasper, T. (2022). Experimental Investigation of the Pressure Dependence of Iso-Octane
Combustion. Frontiers in Energy Research, 10. https://doi.org/10.3389/fenrg.2022.859112
bibtex: '@article{Shaqiri_Kaczmarek_vom Lehn_Beeckmann_Pitsch_Kasper_2022, title={Experimental
Investigation of the Pressure Dependence of Iso-Octane Combustion}, volume={10},
DOI={10.3389/fenrg.2022.859112},
journal={Frontiers in Energy Research}, publisher={Frontiers Media SA}, author={Shaqiri,
S. and Kaczmarek, D. and vom Lehn, F. and Beeckmann, J. and Pitsch, H. and Kasper,
Tina}, year={2022} }'
chicago: Shaqiri, S., D. Kaczmarek, F. vom Lehn, J. Beeckmann, H. Pitsch, and Tina
Kasper. “Experimental Investigation of the Pressure Dependence of Iso-Octane Combustion.”
Frontiers in Energy Research 10 (2022). https://doi.org/10.3389/fenrg.2022.859112.
ieee: 'S. Shaqiri, D. Kaczmarek, F. vom Lehn, J. Beeckmann, H. Pitsch, and T. Kasper,
“Experimental Investigation of the Pressure Dependence of Iso-Octane Combustion,”
Frontiers in Energy Research, vol. 10, 2022, doi: 10.3389/fenrg.2022.859112.'
mla: Shaqiri, S., et al. “Experimental Investigation of the Pressure Dependence
of Iso-Octane Combustion.” Frontiers in Energy Research, vol. 10, Frontiers
Media SA, 2022, doi:10.3389/fenrg.2022.859112.
short: S. Shaqiri, D. Kaczmarek, F. vom Lehn, J. Beeckmann, H. Pitsch, T. Kasper,
Frontiers in Energy Research 10 (2022).
date_created: 2023-01-13T16:30:12Z
date_updated: 2023-01-17T08:26:06Z
department:
- _id: '9'
- _id: '728'
doi: 10.3389/fenrg.2022.859112
extern: '1'
intvolume: ' 10'
keyword:
- Economics and Econometrics
- Energy Engineering and Power Technology
- Fuel Technology
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
publication: Frontiers in Energy Research
publication_identifier:
issn:
- 2296-598X
publication_status: published
publisher: Frontiers Media SA
status: public
title: Experimental Investigation of the Pressure Dependence of Iso-Octane Combustion
type: journal_article
user_id: '14931'
volume: 10
year: '2022'
...
---
_id: '36817'
article_number: '112096'
author:
- first_name: Martin
full_name: Hoener, Martin
last_name: Hoener
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
citation:
ama: 'Hoener M, Kasper T. Nitrous acid in high-pressure oxidation of CH4 doped with
nitric oxide: Challenges in the isomer-selective detection and quantification
of an elusive intermediate. Combustion and Flame. 2022;243. doi:10.1016/j.combustflame.2022.112096'
apa: 'Hoener, M., & Kasper, T. (2022). Nitrous acid in high-pressure oxidation
of CH4 doped with nitric oxide: Challenges in the isomer-selective detection and
quantification of an elusive intermediate. Combustion and Flame, 243,
Article 112096. https://doi.org/10.1016/j.combustflame.2022.112096'
bibtex: '@article{Hoener_Kasper_2022, title={Nitrous acid in high-pressure oxidation
of CH4 doped with nitric oxide: Challenges in the isomer-selective detection and
quantification of an elusive intermediate}, volume={243}, DOI={10.1016/j.combustflame.2022.112096},
number={112096}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Hoener,
Martin and Kasper, Tina}, year={2022} }'
chicago: 'Hoener, Martin, and Tina Kasper. “Nitrous Acid in High-Pressure Oxidation
of CH4 Doped with Nitric Oxide: Challenges in the Isomer-Selective Detection and
Quantification of an Elusive Intermediate.” Combustion and Flame 243 (2022).
https://doi.org/10.1016/j.combustflame.2022.112096.'
ieee: 'M. Hoener and T. Kasper, “Nitrous acid in high-pressure oxidation of CH4
doped with nitric oxide: Challenges in the isomer-selective detection and quantification
of an elusive intermediate,” Combustion and Flame, vol. 243, Art. no. 112096,
2022, doi: 10.1016/j.combustflame.2022.112096.'
mla: 'Hoener, Martin, and Tina Kasper. “Nitrous Acid in High-Pressure Oxidation
of CH4 Doped with Nitric Oxide: Challenges in the Isomer-Selective Detection and
Quantification of an Elusive Intermediate.” Combustion and Flame, vol.
243, 112096, Elsevier BV, 2022, doi:10.1016/j.combustflame.2022.112096.'
short: M. Hoener, T. Kasper, Combustion and Flame 243 (2022).
date_created: 2023-01-13T16:31:23Z
date_updated: 2023-01-17T08:26:28Z
department:
- _id: '9'
- _id: '728'
doi: 10.1016/j.combustflame.2022.112096
extern: '1'
intvolume: ' 243'
keyword:
- General Physics and Astronomy
- Energy Engineering and Power Technology
- Fuel Technology
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
publication: Combustion and Flame
publication_identifier:
issn:
- 0010-2180
publication_status: published
publisher: Elsevier BV
status: public
title: 'Nitrous acid in high-pressure oxidation of CH4 doped with nitric oxide: Challenges
in the isomer-selective detection and quantification of an elusive intermediate'
type: journal_article
user_id: '14931'
volume: 243
year: '2022'
...
---
_id: '40554'
article_number: '101231'
author:
- first_name: Alberto
full_name: Rodríguez-Gómez, Alberto
last_name: Rodríguez-Gómez
- first_name: Enrico
full_name: Lepre, Enrico
last_name: Lepre
- first_name: Fernando
full_name: Dorado, Fernando
last_name: Dorado
- first_name: Luz
full_name: Sanchez-Silva, Luz
last_name: Sanchez-Silva
- first_name: Nieves
full_name: Lopez Salas, Nieves
id: '98120'
last_name: Lopez Salas
orcid: https://orcid.org/0000-0002-8438-9548
- first_name: Ana Raquel
full_name: de la Osa, Ana Raquel
last_name: de la Osa
citation:
ama: 'Rodríguez-Gómez A, Lepre E, Dorado F, Sanchez-Silva L, Lopez Salas N, de la
Osa AR. Efficient ethanol electro-reforming on bimetallic anodes supported on
adenine-based noble carbons: hydrogen production and value-added chemicals. Materials
Today Energy. 2022;32. doi:10.1016/j.mtener.2022.101231'
apa: 'Rodríguez-Gómez, A., Lepre, E., Dorado, F., Sanchez-Silva, L., Lopez Salas,
N., & de la Osa, A. R. (2022). Efficient ethanol electro-reforming on bimetallic
anodes supported on adenine-based noble carbons: hydrogen production and value-added
chemicals. Materials Today Energy, 32, Article 101231. https://doi.org/10.1016/j.mtener.2022.101231'
bibtex: '@article{Rodríguez-Gómez_Lepre_Dorado_Sanchez-Silva_Lopez Salas_de la Osa_2022,
title={Efficient ethanol electro-reforming on bimetallic anodes supported on adenine-based
noble carbons: hydrogen production and value-added chemicals}, volume={32}, DOI={10.1016/j.mtener.2022.101231},
number={101231}, journal={Materials Today Energy}, publisher={Elsevier BV}, author={Rodríguez-Gómez,
Alberto and Lepre, Enrico and Dorado, Fernando and Sanchez-Silva, Luz and Lopez
Salas, Nieves and de la Osa, Ana Raquel}, year={2022} }'
chicago: 'Rodríguez-Gómez, Alberto, Enrico Lepre, Fernando Dorado, Luz Sanchez-Silva,
Nieves Lopez Salas, and Ana Raquel de la Osa. “Efficient Ethanol Electro-Reforming
on Bimetallic Anodes Supported on Adenine-Based Noble Carbons: Hydrogen Production
and Value-Added Chemicals.” Materials Today Energy 32 (2022). https://doi.org/10.1016/j.mtener.2022.101231.'
ieee: 'A. Rodríguez-Gómez, E. Lepre, F. Dorado, L. Sanchez-Silva, N. Lopez Salas,
and A. R. de la Osa, “Efficient ethanol electro-reforming on bimetallic anodes
supported on adenine-based noble carbons: hydrogen production and value-added
chemicals,” Materials Today Energy, vol. 32, Art. no. 101231, 2022, doi:
10.1016/j.mtener.2022.101231.'
mla: 'Rodríguez-Gómez, Alberto, et al. “Efficient Ethanol Electro-Reforming on Bimetallic
Anodes Supported on Adenine-Based Noble Carbons: Hydrogen Production and Value-Added
Chemicals.” Materials Today Energy, vol. 32, 101231, Elsevier BV, 2022,
doi:10.1016/j.mtener.2022.101231.'
short: A. Rodríguez-Gómez, E. Lepre, F. Dorado, L. Sanchez-Silva, N. Lopez Salas,
A.R. de la Osa, Materials Today Energy 32 (2022).
date_created: 2023-01-27T16:13:59Z
date_updated: 2023-01-27T16:35:28Z
doi: 10.1016/j.mtener.2022.101231
intvolume: ' 32'
keyword:
- Energy Engineering and Power Technology
- Fuel Technology
- Nuclear Energy and Engineering
- Materials Science (miscellaneous)
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
publication: Materials Today Energy
publication_identifier:
issn:
- 2468-6069
publication_status: published
publisher: Elsevier BV
status: public
title: 'Efficient ethanol electro-reforming on bimetallic anodes supported on adenine-based
noble carbons: hydrogen production and value-added chemicals'
type: journal_article
user_id: '98120'
volume: 32
year: '2022'
...
---
_id: '35271'
author:
- first_name: Deborah
full_name: Weiß, Deborah
id: '45673'
last_name: Weiß
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
citation:
ama: 'Weiß D, Schramm B. Fracture mechanical investigation of preformed metal sheets
using a novel CC-specimen. In: Procedia Structural Integrity. Vol 42. Elsevier
BV; 2022:879-885. doi:10.1016/j.prostr.2022.12.111'
apa: Weiß, D., & Schramm, B. (2022). Fracture mechanical investigation of preformed
metal sheets using a novel CC-specimen. Procedia Structural Integrity,
42, 879–885. https://doi.org/10.1016/j.prostr.2022.12.111
bibtex: '@inproceedings{Weiß_Schramm_2022, title={Fracture mechanical investigation
of preformed metal sheets using a novel CC-specimen}, volume={42}, DOI={10.1016/j.prostr.2022.12.111},
booktitle={Procedia Structural Integrity}, publisher={Elsevier BV}, author={Weiß,
Deborah and Schramm, Britta}, year={2022}, pages={879–885} }'
chicago: Weiß, Deborah, and Britta Schramm. “Fracture Mechanical Investigation of
Preformed Metal Sheets Using a Novel CC-Specimen.” In Procedia Structural Integrity,
42:879–85. Elsevier BV, 2022. https://doi.org/10.1016/j.prostr.2022.12.111.
ieee: 'D. Weiß and B. Schramm, “Fracture mechanical investigation of preformed metal
sheets using a novel CC-specimen,” in Procedia Structural Integrity, Madeira,
2022, vol. 42, pp. 879–885, doi: 10.1016/j.prostr.2022.12.111.'
mla: Weiß, Deborah, and Britta Schramm. “Fracture Mechanical Investigation of Preformed
Metal Sheets Using a Novel CC-Specimen.” Procedia Structural Integrity,
vol. 42, Elsevier BV, 2022, pp. 879–85, doi:10.1016/j.prostr.2022.12.111.
short: 'D. Weiß, B. Schramm, in: Procedia Structural Integrity, Elsevier BV, 2022,
pp. 879–885.'
conference:
end_date: 2022-07-01
location: Madeira
name: European Conference on Fracture 23
start_date: 2022-06-27
date_created: 2023-01-05T11:02:26Z
date_updated: 2023-02-07T09:36:58Z
department:
- _id: '143'
doi: 10.1016/j.prostr.2022.12.111
intvolume: ' 42'
keyword:
- General Engineering
- Energy Engineering and Power Technology
language:
- iso: eng
page: 879-885
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Procedia Structural Integrity
publication_identifier:
issn:
- 2452-3216
publication_status: published
publisher: Elsevier BV
status: public
title: Fracture mechanical investigation of preformed metal sheets using a novel CC-specimen
type: conference
user_id: '4668'
volume: 42
year: '2022'
...
---
_id: '32492'
article_number: '112006'
author:
- first_name: S.
full_name: Lau, S.
last_name: Lau
- first_name: M.
full_name: Gonchikzhapov, M.
last_name: Gonchikzhapov
- first_name: A.
full_name: Paletsky, A.
last_name: Paletsky
- first_name: A.
full_name: Shmakov, A.
last_name: Shmakov
- first_name: O.
full_name: Korobeinichev, O.
last_name: Korobeinichev
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
- first_name: B.
full_name: Atakan, B.
last_name: Atakan
citation:
ama: 'Lau S, Gonchikzhapov M, Paletsky A, et al. Aluminum Diethylphosphinate as
a Flame Retardant for Polyethylene: Investigation of the Pyrolysis and Combustion
Behavior of PE/AlPi-Mixtures. Combustion and Flame. 2022;240. doi:10.1016/j.combustflame.2022.112006'
apa: 'Lau, S., Gonchikzhapov, M., Paletsky, A., Shmakov, A., Korobeinichev, O.,
Kasper, T., & Atakan, B. (2022). Aluminum Diethylphosphinate as a Flame Retardant
for Polyethylene: Investigation of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures.
Combustion and Flame, 240, Article 112006. https://doi.org/10.1016/j.combustflame.2022.112006'
bibtex: '@article{Lau_Gonchikzhapov_Paletsky_Shmakov_Korobeinichev_Kasper_Atakan_2022,
title={Aluminum Diethylphosphinate as a Flame Retardant for Polyethylene: Investigation
of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures}, volume={240}, DOI={10.1016/j.combustflame.2022.112006},
number={112006}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Lau,
S. and Gonchikzhapov, M. and Paletsky, A. and Shmakov, A. and Korobeinichev, O.
and Kasper, Tina and Atakan, B.}, year={2022} }'
chicago: 'Lau, S., M. Gonchikzhapov, A. Paletsky, A. Shmakov, O. Korobeinichev,
Tina Kasper, and B. Atakan. “Aluminum Diethylphosphinate as a Flame Retardant
for Polyethylene: Investigation of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures.”
Combustion and Flame 240 (2022). https://doi.org/10.1016/j.combustflame.2022.112006.'
ieee: 'S. Lau et al., “Aluminum Diethylphosphinate as a Flame Retardant for
Polyethylene: Investigation of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures,”
Combustion and Flame, vol. 240, Art. no. 112006, 2022, doi: 10.1016/j.combustflame.2022.112006.'
mla: 'Lau, S., et al. “Aluminum Diethylphosphinate as a Flame Retardant for Polyethylene:
Investigation of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures.” Combustion
and Flame, vol. 240, 112006, Elsevier BV, 2022, doi:10.1016/j.combustflame.2022.112006.'
short: S. Lau, M. Gonchikzhapov, A. Paletsky, A. Shmakov, O. Korobeinichev, T. Kasper,
B. Atakan, Combustion and Flame 240 (2022).
date_created: 2022-08-02T10:21:49Z
date_updated: 2023-02-23T13:48:43Z
department:
- _id: '728'
doi: 10.1016/j.combustflame.2022.112006
extern: '1'
intvolume: ' 240'
keyword:
- General Physics and Astronomy
- Energy Engineering and Power Technology
- Fuel Technology
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
publication: Combustion and Flame
publication_identifier:
issn:
- 0010-2180
publication_status: published
publisher: Elsevier BV
status: public
title: 'Aluminum Diethylphosphinate as a Flame Retardant for Polyethylene: Investigation
of the Pyrolysis and Combustion Behavior of PE/AlPi-Mixtures'
type: journal_article
user_id: '94996'
volume: 240
year: '2022'
...
---
_id: '30726'
author:
- first_name: Deborah
full_name: Weiß, Deborah
id: '45673'
last_name: Weiß
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
citation:
ama: 'Weiß D, Schramm B, Kullmer G. Influence of plane mixed-mode loading on the
kinking angle of clinchable metal sheets. In: Procedia Structural Integrity.
Vol 39. Elsevier BV; 2022:139-147. doi:10.1016/j.prostr.2022.03.082'
apa: Weiß, D., Schramm, B., & Kullmer, G. (2022). Influence of plane mixed-mode
loading on the kinking angle of clinchable metal sheets. Procedia Structural
Integrity, 39, 139–147. https://doi.org/10.1016/j.prostr.2022.03.082
bibtex: '@inproceedings{Weiß_Schramm_Kullmer_2022, title={Influence of plane mixed-mode
loading on the kinking angle of clinchable metal sheets}, volume={39}, DOI={10.1016/j.prostr.2022.03.082},
booktitle={Procedia Structural Integrity}, publisher={Elsevier BV}, author={Weiß,
Deborah and Schramm, Britta and Kullmer, Gunter}, year={2022}, pages={139–147}
}'
chicago: Weiß, Deborah, Britta Schramm, and Gunter Kullmer. “Influence of Plane
Mixed-Mode Loading on the Kinking Angle of Clinchable Metal Sheets.” In Procedia
Structural Integrity, 39:139–47. Elsevier BV, 2022. https://doi.org/10.1016/j.prostr.2022.03.082.
ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Influence of plane mixed-mode loading
on the kinking angle of clinchable metal sheets,” in Procedia Structural Integrity,
online, 2022, vol. 39, pp. 139–147, doi: 10.1016/j.prostr.2022.03.082.'
mla: Weiß, Deborah, et al. “Influence of Plane Mixed-Mode Loading on the Kinking
Angle of Clinchable Metal Sheets.” Procedia Structural Integrity, vol.
39, Elsevier BV, 2022, pp. 139–47, doi:10.1016/j.prostr.2022.03.082.
short: 'D. Weiß, B. Schramm, G. Kullmer, in: Procedia Structural Integrity, Elsevier
BV, 2022, pp. 139–147.'
conference:
end_date: 2021-09-24
location: online
name: 7th International Conference on Crack Paths
start_date: 2021-09-21
date_created: 2022-03-30T08:34:10Z
date_updated: 2023-04-27T10:17:21Z
department:
- _id: '143'
doi: 10.1016/j.prostr.2022.03.082
intvolume: ' 39'
keyword:
- General Engineering
- Energy Engineering and Power Technology
language:
- iso: eng
page: 139-147
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Procedia Structural Integrity
publication_identifier:
issn:
- 2452-3216
publication_status: published
publisher: Elsevier BV
status: public
title: Influence of plane mixed-mode loading on the kinking angle of clinchable metal
sheets
type: conference
user_id: '45673'
volume: 39
year: '2022'
...
---
_id: '44091'
abstract:
- lang: eng
text: We study the effects of product differentiation on the bundling incentives
of a two-product retailer. Two monopolistic manufacturers each produce a differentiated
good. One sells it to both retailers, while the other only supplies a single retailer.
Retailers compete in prices. Retail bundling is profitable when the goods are
close substitutes. Only then is competition so intense that the retailer uses
bundling to relax competition both within and across product markets, despite
an aggravation of the double marginalization problem. Our asymmetric market structure
arises endogenously for the case of close substitutes. In this case, bundling
reduces social welfare.
author:
- first_name: Angelika Elfriede
full_name: Endres-Fröhlich, Angelika Elfriede
id: '48794'
last_name: Endres-Fröhlich
- first_name: Burkhard
full_name: Hehenkamp, Burkhard
id: '37339'
last_name: Hehenkamp
- first_name: Joachim
full_name: Heinzel, Joachim
last_name: Heinzel
citation:
ama: Endres-Fröhlich AE, Hehenkamp B, Heinzel J. The Impact of Product Differentiation
on Retail Bundling in a Vertical Market.
apa: Endres-Fröhlich, A. E., Hehenkamp, B., & Heinzel, J. (n.d.). The Impact
of Product Differentiation on Retail Bundling in a Vertical Market.
bibtex: '@book{Endres-Fröhlich_Hehenkamp_Heinzel, title={The Impact of Product Differentiation
on Retail Bundling in a Vertical Market}, author={Endres-Fröhlich, Angelika Elfriede
and Hehenkamp, Burkhard and Heinzel, Joachim} }'
chicago: Endres-Fröhlich, Angelika Elfriede, Burkhard Hehenkamp, and Joachim Heinzel.
The Impact of Product Differentiation on Retail Bundling in a Vertical Market,
n.d.
ieee: A. E. Endres-Fröhlich, B. Hehenkamp, and J. Heinzel, The Impact of Product
Differentiation on Retail Bundling in a Vertical Market. .
mla: Endres-Fröhlich, Angelika Elfriede, et al. The Impact of Product Differentiation
on Retail Bundling in a Vertical Market.
short: A.E. Endres-Fröhlich, B. Hehenkamp, J. Heinzel, The Impact of Product Differentiation
on Retail Bundling in a Vertical Market, n.d.
date_created: 2023-04-20T16:21:28Z
date_updated: 2023-04-20T17:15:48Z
department:
- _id: '280'
- _id: '475'
jel:
- D43
- L13
- L42
keyword:
- Retail bundling
- upstream market power
- double marginalization
- product differentiation
language:
- iso: eng
page: '43'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '2'
name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '7'
name: 'SFB 901 - A3: SFB 901 - Subproject A3'
publication_status: draft
status: public
title: The Impact of Product Differentiation on Retail Bundling in a Vertical Market
type: report
user_id: '37339'
year: '2022'
...
---
_id: '29208'
abstract:
- lang: eng
text: The parameters required to calculate the energy efficiency of household refrigerating
appliances (i.e. refrigerators, freezers and their combinations) are determined
by standard measurements. According to regulations, these measurements are carried
out when the appliances are new. It is known from previous studies that various
technical aging mechanisms can increase electrical energy consumption by up to
36 % over a product lifespan of 18 years. In order to determine the time dependence
of the energy consumption of household refrigerating appliances, repeated measurements
are carried out in this work. Eleven new appliances are examined under standard
measurement conditions. After just two years of operation, an additional energy
consumption of up to 11 % is determined. Furthermore, 21 older appliances that
had previously been measured in new condition are tested again after up to 21
years of operation. For these older appliances, an average increase of energy
consumption of 28 % is found. For individual appliances, the maximum increase
is 36 %. An aging model is developed on the basis of these measurement results,
which may help to predict the aging-related increase of energy consumption of
household refrigerating appliances. This model shows an average increase in energy
consumption of 27 % for an appliance age of 16 years. Supplemental performance
tests of eight compressors do not show any significant aging effects related to
these devices after two years of operation. Furthermore, measurements of the thermal
conductivity of aged polyurethane foam test samples are carried out and an increase
of its thermal conductivity of 26 % over a period of about three years is determined.
article_number: '117992'
author:
- first_name: Andreas
full_name: Paul, Andreas
id: '7828'
last_name: Paul
- first_name: Elmar
full_name: Baumhögger, Elmar
id: '15164'
last_name: Baumhögger
- first_name: Andreas
full_name: Elsner, Andreas
id: '16124'
last_name: Elsner
- first_name: Michael
full_name: Reineke, Michael
id: '24603'
last_name: Reineke
- first_name: Christian
full_name: Hueppe, Christian
last_name: Hueppe
- first_name: Rainer
full_name: Stamminger, Rainer
last_name: Stamminger
- first_name: Heike
full_name: Hoelscher, Heike
last_name: Hoelscher
- first_name: Hendrik
full_name: Wagner, Hendrik
last_name: Wagner
- first_name: Ulrich
full_name: Gries, Ulrich
last_name: Gries
- first_name: Wolfgang
full_name: Becker, Wolfgang
last_name: Becker
- first_name: Jadran
full_name: Vrabec, Jadran
last_name: Vrabec
citation:
ama: Paul A, Baumhögger E, Elsner A, et al. Impact of aging on the energy efficiency
of household refrigerating appliances. Applied Thermal Engineering. 2022;205.
doi:10.1016/j.applthermaleng.2021.117992
apa: Paul, A., Baumhögger, E., Elsner, A., Reineke, M., Hueppe, C., Stamminger,
R., Hoelscher, H., Wagner, H., Gries, U., Becker, W., & Vrabec, J. (2022).
Impact of aging on the energy efficiency of household refrigerating appliances.
Applied Thermal Engineering, 205, Article 117992. https://doi.org/10.1016/j.applthermaleng.2021.117992
bibtex: '@article{Paul_Baumhögger_Elsner_Reineke_Hueppe_Stamminger_Hoelscher_Wagner_Gries_Becker_et
al._2022, title={Impact of aging on the energy efficiency of household refrigerating
appliances}, volume={205}, DOI={10.1016/j.applthermaleng.2021.117992},
number={117992}, journal={Applied Thermal Engineering}, publisher={Elsevier BV},
author={Paul, Andreas and Baumhögger, Elmar and Elsner, Andreas and Reineke, Michael
and Hueppe, Christian and Stamminger, Rainer and Hoelscher, Heike and Wagner,
Hendrik and Gries, Ulrich and Becker, Wolfgang and et al.}, year={2022} }'
chicago: Paul, Andreas, Elmar Baumhögger, Andreas Elsner, Michael Reineke, Christian
Hueppe, Rainer Stamminger, Heike Hoelscher, et al. “Impact of Aging on the Energy
Efficiency of Household Refrigerating Appliances.” Applied Thermal Engineering
205 (2022). https://doi.org/10.1016/j.applthermaleng.2021.117992.
ieee: 'A. Paul et al., “Impact of aging on the energy efficiency of household
refrigerating appliances,” Applied Thermal Engineering, vol. 205, Art.
no. 117992, 2022, doi: 10.1016/j.applthermaleng.2021.117992.'
mla: Paul, Andreas, et al. “Impact of Aging on the Energy Efficiency of Household
Refrigerating Appliances.” Applied Thermal Engineering, vol. 205, 117992,
Elsevier BV, 2022, doi:10.1016/j.applthermaleng.2021.117992.
short: A. Paul, E. Baumhögger, A. Elsner, M. Reineke, C. Hueppe, R. Stamminger,
H. Hoelscher, H. Wagner, U. Gries, W. Becker, J. Vrabec, Applied Thermal Engineering
205 (2022).
date_created: 2022-01-10T13:35:45Z
date_updated: 2023-04-27T11:08:36Z
department:
- _id: '728'
- _id: '155'
- _id: '9'
doi: 10.1016/j.applthermaleng.2021.117992
intvolume: ' 205'
keyword:
- Industrial and Manufacturing Engineering
- Energy Engineering and Power Technology
language:
- iso: eng
publication: Applied Thermal Engineering
publication_identifier:
issn:
- 1359-4311
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Impact of aging on the energy efficiency of household refrigerating appliances
type: journal_article
user_id: '7828'
volume: 205
year: '2022'
...
---
_id: '31808'
article_number: '100244'
author:
- first_name: Wameedh
full_name: Khider Abbas Abbas, Wameedh
last_name: Khider Abbas Abbas
- first_name: Elmar
full_name: Baumhögger, Elmar
id: '15164'
last_name: Baumhögger
- first_name: Jadran
full_name: Vrabec, Jadran
last_name: Vrabec
citation:
ama: 'Khider Abbas Abbas W, Baumhögger E, Vrabec J. Experimental investigation of
organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working
fluid. Energy Conversion and Management: X. Published online 2022. doi:10.1016/j.ecmx.2022.100244'
apa: 'Khider Abbas Abbas, W., Baumhögger, E., & Vrabec, J. (2022). Experimental
investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane
as a working fluid. Energy Conversion and Management: X, Article 100244.
https://doi.org/10.1016/j.ecmx.2022.100244'
bibtex: '@article{Khider Abbas Abbas_Baumhögger_Vrabec_2022, title={Experimental
investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane
as a working fluid}, DOI={10.1016/j.ecmx.2022.100244},
number={100244}, journal={Energy Conversion and Management: X}, publisher={Elsevier
BV}, author={Khider Abbas Abbas, Wameedh and Baumhögger, Elmar and Vrabec, Jadran},
year={2022} }'
chicago: 'Khider Abbas Abbas, Wameedh, Elmar Baumhögger, and Jadran Vrabec. “Experimental
Investigation of Organic Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane
as a Working Fluid.” Energy Conversion and Management: X, 2022. https://doi.org/10.1016/j.ecmx.2022.100244.'
ieee: 'W. Khider Abbas Abbas, E. Baumhögger, and J. Vrabec, “Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid,” Energy Conversion and Management: X, Art. no. 100244,
2022, doi: 10.1016/j.ecmx.2022.100244.'
mla: 'Khider Abbas Abbas, Wameedh, et al. “Experimental Investigation of Organic
Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane as a Working Fluid.”
Energy Conversion and Management: X, 100244, Elsevier BV, 2022, doi:10.1016/j.ecmx.2022.100244.'
short: 'W. Khider Abbas Abbas, E. Baumhögger, J. Vrabec, Energy Conversion and Management:
X (2022).'
date_created: 2022-06-08T09:02:39Z
date_updated: 2023-04-27T11:17:23Z
department:
- _id: '728'
- _id: '9'
doi: 10.1016/j.ecmx.2022.100244
keyword:
- Energy Engineering and Power Technology
- Fuel Technology
- Nuclear Energy and Engineering
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
publication: 'Energy Conversion and Management: X'
publication_identifier:
issn:
- 2590-1745
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Experimental investigation of organic Rankine cycle performance using alkanes
or hexamethyldisiloxane as a working fluid
type: journal_article
user_id: '15164'
year: '2022'
...
---
_id: '44238'
abstract:
- lang: eng
text: In numerous turbomachinery applications, e.g., in aero-engines with
regenerators for improving specific fuel consumption (SFC), heat exchangers with
low-pressure loss are required. Pil low-plate heat exchangers (PPHE) are a novel
exchanger type and promising candidates for high-speed flow applications due to
their smooth profiles avoiding blunt obstacles in the flow path. This work deals
with the overall system behavior and gas dynamics of pillow-plate channels. A
pillow-plate channel was placed in the test section of a blow-down wind tunnel
working with dry air, and compressible flow phenomena were investigated utilizing
conventional and focusing schlieren optics; furthermore, static and total pressure
measurements were performed. The experiments supported the assumption that the
system behavior can be described through a Fanno–Rayleigh flow model. Since only
wavy walls with smooth profiles were involved, linearized gas dynamics was able
to cover important flow features within the channel. The effects of the wavy wall
structures on pressure drop and Mach number distribution within the flow path
were investigated, and a good qualitative agreement with theoretical and numerical
predictions was found. The present analysis demonstrates that pressure losses
in pillow-plate heat exchangers are rather low, although their strong turbulent
mixing enables high convective heat transfer coefficients.
article_number: '12'
author:
- first_name: Stephan
full_name: Sundermeier, Stephan
last_name: Sundermeier
- first_name: Maximilian
full_name: Passmann, Maximilian
last_name: Passmann
- first_name: Stefan
full_name: aus der Wiesche, Stefan
last_name: aus der Wiesche
- first_name: Eugeny Y.
full_name: Kenig, Eugeny Y.
id: '665'
last_name: Kenig
citation:
ama: Sundermeier S, Passmann M, aus der Wiesche S, Kenig EY. Flow in Pillow-Plate
Channels for High-Speed Turbomachinery Heat Exchangers. International Journal
of Turbomachinery, Propulsion and Power. 2022;7(2). doi:10.3390/ijtpp7020012
apa: Sundermeier, S., Passmann, M., aus der Wiesche, S., & Kenig, E. Y. (2022).
Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers. International
Journal of Turbomachinery, Propulsion and Power, 7(2), Article 12.
https://doi.org/10.3390/ijtpp7020012
bibtex: '@article{Sundermeier_Passmann_aus der Wiesche_Kenig_2022, title={Flow in
Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers}, volume={7},
DOI={10.3390/ijtpp7020012},
number={212}, journal={International Journal of Turbomachinery, Propulsion and
Power}, publisher={MDPI AG}, author={Sundermeier, Stephan and Passmann, Maximilian
and aus der Wiesche, Stefan and Kenig, Eugeny Y.}, year={2022} }'
chicago: Sundermeier, Stephan, Maximilian Passmann, Stefan aus der Wiesche, and
Eugeny Y. Kenig. “Flow in Pillow-Plate Channels for High-Speed Turbomachinery
Heat Exchangers.” International Journal of Turbomachinery, Propulsion and Power
7, no. 2 (2022). https://doi.org/10.3390/ijtpp7020012.
ieee: 'S. Sundermeier, M. Passmann, S. aus der Wiesche, and E. Y. Kenig, “Flow in
Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers,” International
Journal of Turbomachinery, Propulsion and Power, vol. 7, no. 2, Art. no. 12,
2022, doi: 10.3390/ijtpp7020012.'
mla: Sundermeier, Stephan, et al. “Flow in Pillow-Plate Channels for High-Speed
Turbomachinery Heat Exchangers.” International Journal of Turbomachinery, Propulsion
and Power, vol. 7, no. 2, 12, MDPI AG, 2022, doi:10.3390/ijtpp7020012.
short: S. Sundermeier, M. Passmann, S. aus der Wiesche, E.Y. Kenig, International
Journal of Turbomachinery, Propulsion and Power 7 (2022).
date_created: 2023-04-27T16:21:44Z
date_updated: 2023-04-27T16:53:41Z
department:
- _id: '145'
doi: 10.3390/ijtpp7020012
intvolume: ' 7'
issue: '2'
keyword:
- Mechanical Engineering
- Energy Engineering and Power Technology
- Aerospace Engineering
language:
- iso: eng
publication: International Journal of Turbomachinery, Propulsion and Power
publication_identifier:
issn:
- 2504-186X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Flow in Pillow-Plate Channels for High-Speed Turbomachinery Heat Exchangers
type: journal_article
user_id: '90390'
volume: 7
year: '2022'
...
---
_id: '30394'
author:
- first_name: Matthias
full_name: Hecht, Matthias
last_name: Hecht
- first_name: Jörg
full_name: Baumgartner, Jörg
last_name: Baumgartner
- first_name: Karina
full_name: Tews, Karina
id: '40263'
last_name: Tews
- first_name: Serkan
full_name: Çavdar, Serkan
id: '36456'
last_name: Çavdar
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
citation:
ama: Hecht M, Baumgartner J, Tews K, Çavdar S, Meschut G. Fatigue strength of adhesively
butt-bonded hollow cylinders under multiaxial loading with constant and variable
amplitudes. Procedia Structural Integrity. 2022;38:251-259. doi:10.1016/j.prostr.2022.03.026
apa: Hecht, M., Baumgartner, J., Tews, K., Çavdar, S., & Meschut, G. (2022).
Fatigue strength of adhesively butt-bonded hollow cylinders under multiaxial loading
with constant and variable amplitudes. Procedia Structural Integrity, 38,
251–259. https://doi.org/10.1016/j.prostr.2022.03.026
bibtex: '@article{Hecht_Baumgartner_Tews_Çavdar_Meschut_2022, title={Fatigue strength
of adhesively butt-bonded hollow cylinders under multiaxial loading with constant
and variable amplitudes}, volume={38}, DOI={10.1016/j.prostr.2022.03.026},
journal={Procedia Structural Integrity}, publisher={Elsevier BV}, author={Hecht,
Matthias and Baumgartner, Jörg and Tews, Karina and Çavdar, Serkan and Meschut,
Gerson}, year={2022}, pages={251–259} }'
chicago: 'Hecht, Matthias, Jörg Baumgartner, Karina Tews, Serkan Çavdar, and Gerson
Meschut. “Fatigue Strength of Adhesively Butt-Bonded Hollow Cylinders under Multiaxial
Loading with Constant and Variable Amplitudes.” Procedia Structural Integrity
38 (2022): 251–59. https://doi.org/10.1016/j.prostr.2022.03.026.'
ieee: 'M. Hecht, J. Baumgartner, K. Tews, S. Çavdar, and G. Meschut, “Fatigue strength
of adhesively butt-bonded hollow cylinders under multiaxial loading with constant
and variable amplitudes,” Procedia Structural Integrity, vol. 38, pp. 251–259,
2022, doi: 10.1016/j.prostr.2022.03.026.'
mla: Hecht, Matthias, et al. “Fatigue Strength of Adhesively Butt-Bonded Hollow
Cylinders under Multiaxial Loading with Constant and Variable Amplitudes.” Procedia
Structural Integrity, vol. 38, Elsevier BV, 2022, pp. 251–59, doi:10.1016/j.prostr.2022.03.026.
short: M. Hecht, J. Baumgartner, K. Tews, S. Çavdar, G. Meschut, Procedia Structural
Integrity 38 (2022) 251–259.
date_created: 2022-03-21T14:36:57Z
date_updated: 2023-06-06T14:25:30Z
department:
- _id: '157'
doi: 10.1016/j.prostr.2022.03.026
intvolume: ' 38'
keyword:
- General Engineering
- Energy Engineering and Power Technology
language:
- iso: eng
page: 251-259
publication: Procedia Structural Integrity
publication_identifier:
issn:
- 2452-3216
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Fatigue strength of adhesively butt-bonded hollow cylinders under multiaxial
loading with constant and variable amplitudes
type: journal_article
user_id: '14931'
volume: 38
year: '2022'
...
---
_id: '45016'
article_number: '100244'
author:
- first_name: Wameedh Khider Abbas
full_name: Abbas, Wameedh Khider Abbas
last_name: Abbas
- first_name: Elmar
full_name: Baumhögger, Elmar
last_name: Baumhögger
- first_name: Jadran
full_name: Vrabec, Jadran
last_name: Vrabec
citation:
ama: 'Abbas WKA, Baumhögger E, Vrabec J. Experimental investigation of organic Rankine
cycle performance using alkanes or hexamethyldisiloxane as a working fluid. Energy
Conversion and Management: X. 2022;15. doi:10.1016/j.ecmx.2022.100244'
apa: 'Abbas, W. K. A., Baumhögger, E., & Vrabec, J. (2022). Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid. Energy Conversion and Management: X, 15, Article
100244. https://doi.org/10.1016/j.ecmx.2022.100244'
bibtex: '@article{Abbas_Baumhögger_Vrabec_2022, title={Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid}, volume={15}, DOI={10.1016/j.ecmx.2022.100244},
number={100244}, journal={Energy Conversion and Management: X}, publisher={Elsevier
BV}, author={Abbas, Wameedh Khider Abbas and Baumhögger, Elmar and Vrabec, Jadran},
year={2022} }'
chicago: 'Abbas, Wameedh Khider Abbas, Elmar Baumhögger, and Jadran Vrabec. “Experimental
Investigation of Organic Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane
as a Working Fluid.” Energy Conversion and Management: X 15 (2022). https://doi.org/10.1016/j.ecmx.2022.100244.'
ieee: 'W. K. A. Abbas, E. Baumhögger, and J. Vrabec, “Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid,” Energy Conversion and Management: X, vol. 15, Art. no.
100244, 2022, doi: 10.1016/j.ecmx.2022.100244.'
mla: 'Abbas, Wameedh Khider Abbas, et al. “Experimental Investigation of Organic
Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane as a Working Fluid.”
Energy Conversion and Management: X, vol. 15, 100244, Elsevier BV, 2022,
doi:10.1016/j.ecmx.2022.100244.'
short: 'W.K.A. Abbas, E. Baumhögger, J. Vrabec, Energy Conversion and Management:
X 15 (2022).'
date_created: 2023-05-17T06:52:24Z
date_updated: 2023-07-12T07:59:03Z
doi: 10.1016/j.ecmx.2022.100244
intvolume: ' 15'
keyword:
- Energy Engineering and Power Technology
- Fuel Technology
- Nuclear Energy and Engineering
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
publication: 'Energy Conversion and Management: X'
publication_identifier:
issn:
- 2590-1745
publication_status: published
publisher: Elsevier BV
status: public
title: Experimental investigation of organic Rankine cycle performance using alkanes
or hexamethyldisiloxane as a working fluid
type: journal_article
user_id: '59261'
volume: 15
year: '2022'
...
---
_id: '45017'
article_number: '100244'
author:
- first_name: Wameedh Khider Abbas
full_name: Abbas, Wameedh Khider Abbas
last_name: Abbas
- first_name: Elmar
full_name: Baumhögger, Elmar
last_name: Baumhögger
- first_name: Jadran
full_name: Vrabec, Jadran
last_name: Vrabec
citation:
ama: 'Abbas WKA, Baumhögger E, Vrabec J. Experimental investigation of organic Rankine
cycle performance using alkanes or hexamethyldisiloxane as a working fluid. Energy
Conversion and Management: X. 2022;15. doi:10.1016/j.ecmx.2022.100244'
apa: 'Abbas, W. K. A., Baumhögger, E., & Vrabec, J. (2022). Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid. Energy Conversion and Management: X, 15, Article
100244. https://doi.org/10.1016/j.ecmx.2022.100244'
bibtex: '@article{Abbas_Baumhögger_Vrabec_2022, title={Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid}, volume={15}, DOI={10.1016/j.ecmx.2022.100244},
number={100244}, journal={Energy Conversion and Management: X}, publisher={Elsevier
BV}, author={Abbas, Wameedh Khider Abbas and Baumhögger, Elmar and Vrabec, Jadran},
year={2022} }'
chicago: 'Abbas, Wameedh Khider Abbas, Elmar Baumhögger, and Jadran Vrabec. “Experimental
Investigation of Organic Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane
as a Working Fluid.” Energy Conversion and Management: X 15 (2022). https://doi.org/10.1016/j.ecmx.2022.100244.'
ieee: 'W. K. A. Abbas, E. Baumhögger, and J. Vrabec, “Experimental investigation
of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as
a working fluid,” Energy Conversion and Management: X, vol. 15, Art. no.
100244, 2022, doi: 10.1016/j.ecmx.2022.100244.'
mla: 'Abbas, Wameedh Khider Abbas, et al. “Experimental Investigation of Organic
Rankine Cycle Performance Using Alkanes or Hexamethyldisiloxane as a Working Fluid.”
Energy Conversion and Management: X, vol. 15, 100244, Elsevier BV, 2022,
doi:10.1016/j.ecmx.2022.100244.'
short: 'W.K.A. Abbas, E. Baumhögger, J. Vrabec, Energy Conversion and Management:
X 15 (2022).'
date_created: 2023-05-17T06:53:19Z
date_updated: 2023-07-12T07:57:49Z
doi: 10.1016/j.ecmx.2022.100244
intvolume: ' 15'
keyword:
- Energy Engineering and Power Technology
- Fuel Technology
- Nuclear Energy and Engineering
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
publication: 'Energy Conversion and Management: X'
publication_identifier:
issn:
- 2590-1745
publication_status: published
publisher: Elsevier BV
status: public
title: Experimental investigation of organic Rankine cycle performance using alkanes
or hexamethyldisiloxane as a working fluid
type: journal_article
user_id: '59261'
volume: 15
year: '2022'
...
---
_id: '47961'
abstract:
- lang: eng
text: Due to failures or even the absence of an electricity grid, microgrid
systems are becoming popular solutions for electrifying African rural communities.
However, they are heavily stressed and complex to control due to their intermittency
and demand growth. Demand side management (DSM) serves as an option to increase
the level of flexibility on the demand side by scheduling users’ consumption patterns
profiles in response to supply. This paper proposes a demand-side management strategy
based on load shifting and peak clipping. The proposed approach was modelled in
a MATLAB/Simulink R2021a environment and was optimized using the artificial neural
network (ANN) algorithm. Simulations were carried out to test the model’s efficacy
in a stand-alone PV-battery microgrid in East Africa. The proposed algorithm reduces
the peak demand, smoothing the load profile to the desired level, and improves
the system’s peak to average ratio (PAR). The presence of deferrable loads has
been considered to bring more flexible demand-side management. Results promise
decreases in peak demand and peak to average ratio of about 31.2% and 7.5% through
peak clipping. In addition, load shifting promises more flexibility to customers.
article_number: '5215'
author:
- first_name: Godiana Hagile
full_name: Philipo, Godiana Hagile
id: '88505'
last_name: Philipo
- first_name: Josephine Nakato
full_name: Kakande, Josephine Nakato
id: '88649'
last_name: Kakande
- first_name: Stefan
full_name: Krauter, Stefan
id: '28836'
last_name: Krauter
orcid: 0000-0002-3594-260X
citation:
ama: Philipo GH, Kakande JN, Krauter S. Neural Network-Based Demand-Side Management
in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting and Peak-Clipping.
Energies. 2022;15(14). doi:10.3390/en15145215
apa: Philipo, G. H., Kakande, J. N., & Krauter, S. (2022). Neural Network-Based
Demand-Side Management in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting
and Peak-Clipping. Energies, 15(14), Article 5215. https://doi.org/10.3390/en15145215
bibtex: '@article{Philipo_Kakande_Krauter_2022, title={Neural Network-Based Demand-Side
Management in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting and
Peak-Clipping}, volume={15}, DOI={10.3390/en15145215},
number={145215}, journal={Energies}, publisher={MDPI AG}, author={Philipo, Godiana
Hagile and Kakande, Josephine Nakato and Krauter, Stefan}, year={2022} }'
chicago: Philipo, Godiana Hagile, Josephine Nakato Kakande, and Stefan Krauter.
“Neural Network-Based Demand-Side Management in a Stand-Alone Solar PV-Battery
Microgrid Using Load-Shifting and Peak-Clipping.” Energies 15, no. 14 (2022).
https://doi.org/10.3390/en15145215.
ieee: 'G. H. Philipo, J. N. Kakande, and S. Krauter, “Neural Network-Based Demand-Side
Management in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting and
Peak-Clipping,” Energies, vol. 15, no. 14, Art. no. 5215, 2022, doi: 10.3390/en15145215.'
mla: Philipo, Godiana Hagile, et al. “Neural Network-Based Demand-Side Management
in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting and Peak-Clipping.”
Energies, vol. 15, no. 14, 5215, MDPI AG, 2022, doi:10.3390/en15145215.
short: G.H. Philipo, J.N. Kakande, S. Krauter, Energies 15 (2022).
date_created: 2023-10-11T08:13:13Z
date_updated: 2024-10-17T08:46:23Z
department:
- _id: '53'
doi: 10.3390/en15145215
intvolume: ' 15'
issue: '14'
keyword:
- Energy (miscellaneous)
- Energy Engineering and Power Technology
- Renewable Energy
- Sustainability and the Environment
- Electrical and Electronic Engineering
- Control and Optimization
- Engineering (miscellaneous)
- Building and Construction
language:
- iso: eng
publication: Energies
publication_identifier:
issn:
- 1996-1073
publication_status: published
publisher: MDPI AG
status: public
title: Neural Network-Based Demand-Side Management in a Stand-Alone Solar PV-Battery
Microgrid Using Load-Shifting and Peak-Clipping
type: journal_article
user_id: '16148'
volume: 15
year: '2022'
...
---
_id: '53082'
article_number: '111961'
article_type: original
author:
- first_name: Julia
full_name: Zinsmeister, Julia
last_name: Zinsmeister
- first_name: Nina
full_name: Gaiser, Nina
last_name: Gaiser
- first_name: Jens
full_name: Melder, Jens
last_name: Melder
- first_name: Thomas
full_name: Bierkandt, Thomas
last_name: Bierkandt
- first_name: Patrick
full_name: Hemberger, Patrick
last_name: Hemberger
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
- first_name: Manfred
full_name: Aigner, Manfred
last_name: Aigner
- first_name: Markus
full_name: Köhler, Markus
last_name: Köhler
- first_name: Patrick
full_name: Oßwald, Patrick
last_name: Oßwald
citation:
ama: 'Zinsmeister J, Gaiser N, Melder J, et al. On the diversity of fossil and alternative
gasoline combustion chemistry: A comparative flow reactor study. Combustion
and Flame. 2022;243. doi:10.1016/j.combustflame.2021.111961'
apa: 'Zinsmeister, J., Gaiser, N., Melder, J., Bierkandt, T., Hemberger, P., Kasper,
T., Aigner, M., Köhler, M., & Oßwald, P. (2022). On the diversity of fossil
and alternative gasoline combustion chemistry: A comparative flow reactor study.
Combustion and Flame, 243, Article 111961. https://doi.org/10.1016/j.combustflame.2021.111961'
bibtex: '@article{Zinsmeister_Gaiser_Melder_Bierkandt_Hemberger_Kasper_Aigner_Köhler_Oßwald_2022,
title={On the diversity of fossil and alternative gasoline combustion chemistry:
A comparative flow reactor study}, volume={243}, DOI={10.1016/j.combustflame.2021.111961},
number={111961}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Zinsmeister,
Julia and Gaiser, Nina and Melder, Jens and Bierkandt, Thomas and Hemberger, Patrick
and Kasper, Tina and Aigner, Manfred and Köhler, Markus and Oßwald, Patrick},
year={2022} }'
chicago: 'Zinsmeister, Julia, Nina Gaiser, Jens Melder, Thomas Bierkandt, Patrick
Hemberger, Tina Kasper, Manfred Aigner, Markus Köhler, and Patrick Oßwald. “On
the Diversity of Fossil and Alternative Gasoline Combustion Chemistry: A Comparative
Flow Reactor Study.” Combustion and Flame 243 (2022). https://doi.org/10.1016/j.combustflame.2021.111961.'
ieee: 'J. Zinsmeister et al., “On the diversity of fossil and alternative
gasoline combustion chemistry: A comparative flow reactor study,” Combustion
and Flame, vol. 243, Art. no. 111961, 2022, doi: 10.1016/j.combustflame.2021.111961.'
mla: 'Zinsmeister, Julia, et al. “On the Diversity of Fossil and Alternative Gasoline
Combustion Chemistry: A Comparative Flow Reactor Study.” Combustion and Flame,
vol. 243, 111961, Elsevier BV, 2022, doi:10.1016/j.combustflame.2021.111961.'
short: J. Zinsmeister, N. Gaiser, J. Melder, T. Bierkandt, P. Hemberger, T. Kasper,
M. Aigner, M. Köhler, P. Oßwald, Combustion and Flame 243 (2022).
date_created: 2024-03-27T17:40:32Z
date_updated: 2025-07-08T10:34:57Z
department:
- _id: '728'
doi: 10.1016/j.combustflame.2021.111961
intvolume: ' 243'
keyword:
- General Physics and Astronomy
- Energy Engineering and Power Technology
- Fuel Technology
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
publication: Combustion and Flame
publication_identifier:
issn:
- 0010-2180
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 'On the diversity of fossil and alternative gasoline combustion chemistry:
A comparative flow reactor study'
type: journal_article
user_id: '94562'
volume: 243
year: '2022'
...
---
_id: '24550'
abstract:
- lang: eng
text: "Efficiencies and energy yields of microinverters available on the market
during 2014‒2021 have been \r\nmeasured, compared, and ranked. Conversion efficiencies
as a function of load have been measured indoors with high \r\naccuracy and ranked
according to Euro- and CEC weightings. Energy yields have been measured outdoors
via \r\nidentical and calibrated crystalline silicon PV modules of 215 Wp (until
2020) and 360 Wp (starting 2021). Inverters \r\nwith two inputs have been fed
by two of those modules. DC input, AC power output and energy yield of each micro\x02inverter
have been recorded by individual calibrated electricity meters. CEC and EU efficiency
rankings have been \r\ncomputed and compared. To assess the influence of PV module
size, two extremes have been investigated: A rather \r\nsmall module with 215
Wp - as it has been used 10 years ago, and a brand-new module (2021) offering
360 Wp. Both \r\ntypes of modules contain 60 solar cells in series connection.
Appling the low-power modules, the challenge for the \r\ndifferent micro-inverters
has been during weak-light conditions, using the high-power modules, some inverters
\r\ntemporarily reach their power limits and yield is reduced. A method using
a reference configuration of inverter & \r\nmodule and a linear equation y = ax
+ b resulting in the actual yield, any module & inverter configuration can be
\r\ncharacterized by just the coefficients a and b."
author:
- first_name: Stefan
full_name: Krauter, Stefan
id: '28836'
last_name: Krauter
orcid: 0000-0002-3594-260X
- first_name: Jörg
full_name: Bendfeld, Jörg
id: '16148'
last_name: Bendfeld
citation:
ama: 'Krauter S, Bendfeld J. Module-Inverters (Microinverters): Influence of Module
Size on Conversion Efficiencies and Energy Yields. In: Proceedings of the 38th
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2021).
; 2021:659-663. doi:10.4229/EUPVSEC20212021-4CO.3.4'
apa: 'Krauter, S., & Bendfeld, J. (2021). Module-Inverters (Microinverters):
Influence of Module Size on Conversion Efficiencies and Energy Yields. Proceedings
of the 38th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC
2021), 659–663. https://doi.org/10.4229/EUPVSEC20212021-4CO.3.4'
bibtex: '@inproceedings{Krauter_Bendfeld_2021, title={Module-Inverters (Microinverters):
Influence of Module Size on Conversion Efficiencies and Energy Yields}, DOI={10.4229/EUPVSEC20212021-4CO.3.4},
booktitle={Proceedings of the 38th European Photovoltaic Solar Energy Conference
and Exhibition (EU PVSEC 2021)}, author={Krauter, Stefan and Bendfeld, Jörg},
year={2021}, pages={659–663} }'
chicago: 'Krauter, Stefan, and Jörg Bendfeld. “Module-Inverters (Microinverters):
Influence of Module Size on Conversion Efficiencies and Energy Yields.” In Proceedings
of the 38th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC
2021), 659–63, 2021. https://doi.org/10.4229/EUPVSEC20212021-4CO.3.4.'
ieee: 'S. Krauter and J. Bendfeld, “Module-Inverters (Microinverters): Influence
of Module Size on Conversion Efficiencies and Energy Yields,” in Proceedings
of the 38th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC
2021), 2021, pp. 659–663, doi: 10.4229/EUPVSEC20212021-4CO.3.4.'
mla: 'Krauter, Stefan, and Jörg Bendfeld. “Module-Inverters (Microinverters): Influence
of Module Size on Conversion Efficiencies and Energy Yields.” Proceedings of
the 38th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC
2021), 2021, pp. 659–63, doi:10.4229/EUPVSEC20212021-4CO.3.4.'
short: 'S. Krauter, J. Bendfeld, in: Proceedings of the 38th European Photovoltaic
Solar Energy Conference and Exhibition (EU PVSEC 2021), 2021, pp. 659–663.'
conference:
end_date: 2021-09-10
name: 38th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC
2021)
start_date: 2021-09-06
date_created: 2021-09-16T10:17:11Z
date_updated: 2022-01-06T13:22:03Z
ddc:
- '620'
department:
- _id: '53'
doi: 10.4229/EUPVSEC20212021-4CO.3.4
file:
- access_level: closed
content_type: application/pdf
creator: krauter
date_created: 2022-01-06T13:20:31Z
date_updated: 2022-01-06T13:20:31Z
file_id: '29175'
file_name: Krauter Bendfeld - Module size Microinverters - EUPVSEC 2021.pdf
file_size: 5413518
relation: main_file
success: 1
file_date_updated: 2022-01-06T13:20:31Z
has_accepted_license: '1'
keyword:
- AC-modules
- Microinverter
- Power Conditioning
- Efficiency
- Yield
- PV module size
- saturation
- performance
language:
- iso: eng
page: 659 - 663
publication: Proceedings of the 38th European Photovoltaic Solar Energy Conference
and Exhibition (EU PVSEC 2021)
publication_identifier:
isbn:
- 3-936338-78-7
publication_status: published
quality_controlled: '1'
status: public
title: 'Module-Inverters (Microinverters): Influence of Module Size on Conversion
Efficiencies and Energy Yields'
type: conference
user_id: '28836'
year: '2021'
...
---
_id: '29938'
abstract:
- lang: eng
text: Modular solid-state transformers (SSTs) are a promising technology in converting
power from a 10kV three-phase medium voltage to a lower DC-voltage in the range
of 100…400V to provide pure DC power to applications such as electrolyzers for
hydrogen generation, data centers with a DC power distribution and DC micro grids.
Modular SSTs which can be interpreted as modular multilevel converters with an
isolated DC-DC output stage per module, are designed with redundant modules to
increase reliability. Usually, each of the three arms operates independently,
and therefore, only a fixed number of faulty modules can be compensated in each
arm, even if all modules are operational in the remaining two arms. With the proposed
zero-sequence voltage injection, up to 100% more faulty modules can be compensated
in an arm by employing the same hardware. In addition, module power imbalances
are nearly eliminated by utilizing a fundamental frequency zero-sequence voltage.
A dominant 3rd harmonic zero-sequence voltage injection in combination with the
5th, 7th and several higher order harmonics with adaptive (small) amplitudes minimize
the required arm voltages at steady-state. For nominal operation or symmetrical
faults, the proposed technique is equivalent to the well known Min-Max voltage
injection, which already reduces the peak arm voltage by 13.4% compared to a constant
star point potential. A statistical analysis proves, that the expected number
of tolerable faulty modules of the 1MW SST increases by 12% without the need for
additional hardware.
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: Jarren
full_name: Lange, Jarren
id: '78801'
last_name: Lange
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Unruh R, Lange J, Schafmeister F, Böcker J. Adaptive Zero-Sequence Voltage
Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault
Conditions. In: 23rd European Conference on Power Electronics and Applications
(EPE’21 ECCE Europe). IEEE; 2021. doi:https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542'
apa: Unruh, R., Lange, J., Schafmeister, F., & Böcker, J. (2021). Adaptive Zero-Sequence
Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
Fault Conditions. 23rd European Conference on Power Electronics and Applications
(EPE’21 ECCE Europe). 23rd European Conference on Power Electronics and Applications
(EPE’21 ECCE Europe), Ghent, Belgium. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
bibtex: '@inproceedings{Unruh_Lange_Schafmeister_Böcker_2021, title={Adaptive Zero-Sequence
Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
Fault Conditions}, DOI={https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542},
booktitle={23rd European Conference on Power Electronics and Applications (EPE’21
ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Lange, Jarren and Schafmeister,
Frank and Böcker, Joachim}, year={2021} }'
chicago: Unruh, Roland, Jarren Lange, Frank Schafmeister, and Joachim Böcker. “Adaptive
Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate
for Asymmetrical Fault Conditions.” In 23rd European Conference on Power Electronics
and Applications (EPE’21 ECCE Europe). IEEE, 2021. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.
ieee: 'R. Unruh, J. Lange, F. Schafmeister, and J. Böcker, “Adaptive Zero-Sequence
Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
Fault Conditions,” presented at the 23rd European Conference on Power Electronics
and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, doi: https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.'
mla: Unruh, Roland, et al. “Adaptive Zero-Sequence Voltage Injection for Modular
Solid-State Transformer to Compensate for Asymmetrical Fault Conditions.” 23rd
European Conference on Power Electronics and Applications (EPE’21 ECCE Europe),
IEEE, 2021, doi:https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.
short: 'R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference
on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.'
conference:
end_date: 2021-09-10
location: Ghent, Belgium
name: 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE
Europe)
start_date: 2021-09-06
date_created: 2022-02-21T16:31:34Z
date_updated: 2022-09-09T12:01:42Z
department:
- _id: '52'
doi: https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
keyword:
- Solid-State Transformer
- Zero sequence voltage
- Fault handling strategy
- Power balance control technique
- Three-phase system
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9570542
publication: 23rd European Conference on Power Electronics and Applications (EPE'21
ECCE Europe)
publication_identifier:
isbn:
- 978-9-0758-1537-5
publication_status: published
publisher: IEEE
status: public
title: Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer
to Compensate for Asymmetrical Fault Conditions
type: conference
user_id: '34289'
year: '2021'
...