---
_id: '59239'
abstract:
- lang: ger
  text: Diese Arbeit behandelt die Modellierung und Optimierung von mit Phasenwechselmaterialien
    (PCM) ausgestatteten, energietechnischen Komponenten anhand zweier Fallstudien.
    PCM sind Materialien, deren Phasenwechseleigenschaften während des Schmelzens
    und Erstarrens für Heiz- und Kühlzwecke genutzt werden. Zunächst werden die theoretischen
    Grundlagen zu Wärmeübertragungsproblemen mit Phasenwechsel erörtert und entsprechende
    numerische Lösungsmethoden diskutiert. Ein Modell für Phasenwechselvorgänge wird
    vorgestellt, welches anhand analytischer Lösungen validiert wurde und in den Fallstudien
    zum Einsatz kam. Für beide Fallstudien wird der Stand der Technik erörtert und
    die entsprechenden Forschungsfragen werden formuliert. Die erste Fallstudie behandelt
    PCM-integrierte Photovoltaikmodule und die zweite Festbett-Latentwärmespeicher,
    welche nicht-kugelförmiger PCM-Kapseln verwenden. Für beide Systeme wurden thermische
    Model-le entwickelt und anhand experimenteller Daten mit guter Genauigkeit validiert.
    Diese Modelle wurden in Parameterstudien eingesetzt, um optimierte Systemkonfigurationen
    zu identifizieren. Die vorgestellten Ergebnisse zeigen, dass ein PCM-Kühlkörper
    mit ausreichender Dicke und Wärmeleitfähigkeit den Wirkungsgrad und die Lebensdauer
    von Photovoltaikmodulen erheblich erhöht. Darüber hinaus verbessern PCM-Kapseln
    mit hoher Packungs-dichte und Oberfläche sowohl die volumenspezifische Speicherkapazität
    als auch die thermische Leistung von Festbett-Latentwärmespeichern.
- lang: eng
  text: This thesis explores the modeling and optimization of energy system components
    incorporating phase change materials (PCM) through two different case studies.
    PCM are materials whose phase change characteristics during melting and solidification
    are utilized for heating and cooling purposes. The theoretical foundations of
    heat transfer problems involving phase change, along with the relevant numerical
    solution methods, are discussed. A phase change model is presented, which was
    validated against analytical solutions and applied in the case studies. For both
    case studies, a review of the state of the art is provided, followed by the formulation
    of specific research problems. The first case study investigated PCM-enhanced
    photovoltaic modules, while the second focused on packed bed latent heat storages
    (PBLHS) utilizing non-spherical PCM capsules. Thermal models were developed for
    both systems and validated with good accuracy against experimental data. These
    models were employed in parameter studies to identify optimized system configurations.
    The presented results demonstrate that a PCM heat sink with sufficient thickness
    and thermal conductivity can significantly improve the efficiency and lifespan
    of photovoltaic modules. Furthermore, PCM capsules with both high packing density
    and surface area increase the volume-specific storage capacity and thermal power
    output of PBLHS.
author:
- first_name: Matti
  full_name: Grabo, Matti
  id: '66520'
  last_name: Grabo
citation:
  ama: Grabo M. <i>Modeling and Optimization of Energy System Components Equipped
    with Phase Change Materials</i>.; 2025. doi:<a href="https://doi.org/10.17619/UNIPB/1-2199">10.17619/UNIPB/1-2199</a>
  apa: Grabo, M. (2025). <i>Modeling and optimization of energy system components
    equipped with phase change materials</i>. <a href="https://doi.org/10.17619/UNIPB/1-2199">https://doi.org/10.17619/UNIPB/1-2199</a>
  bibtex: '@book{Grabo_2025, place={Paderborn}, title={Modeling and optimization of
    energy system components equipped with phase change materials}, DOI={<a href="https://doi.org/10.17619/UNIPB/1-2199">10.17619/UNIPB/1-2199</a>},
    author={Grabo, Matti}, year={2025} }'
  chicago: Grabo, Matti. <i>Modeling and Optimization of Energy System Components
    Equipped with Phase Change Materials</i>. Paderborn, 2025. <a href="https://doi.org/10.17619/UNIPB/1-2199">https://doi.org/10.17619/UNIPB/1-2199</a>.
  ieee: M. Grabo, <i>Modeling and optimization of energy system components equipped
    with phase change materials</i>. Paderborn, 2025.
  mla: Grabo, Matti. <i>Modeling and Optimization of Energy System Components Equipped
    with Phase Change Materials</i>. 2025, doi:<a href="https://doi.org/10.17619/UNIPB/1-2199">10.17619/UNIPB/1-2199</a>.
  short: M. Grabo, Modeling and Optimization of Energy System Components Equipped
    with Phase Change Materials, Paderborn, 2025.
date_created: 2025-04-02T09:25:58Z
date_updated: 2025-04-02T09:44:05Z
department:
- _id: '9'
doi: 10.17619/UNIPB/1-2199
keyword:
- Heat transfer
- PCM
- numerical simulation
- renewable energy
- heat storage
language:
- iso: eng
place: Paderborn
publication_status: published
status: public
supervisor:
- first_name: Eugeny
  full_name: Kenig, Eugeny
  id: '665'
  last_name: Kenig
title: Modeling and optimization of energy system components equipped with phase change
  materials
type: dissertation
user_id: '66520'
year: '2025'
...
---
_id: '6632'
abstract:
- lang: eng
  text: 'Many processes in industrial and domestic applications require heating or
    cooling at certain steps of a process. Even if the process itself cannot be shifted
    towards periods of high PV output (which would be favorable), the heating and
    cooling necessities can be carried out via an inexpensive thermal storage instead
    of a costly electrical storage. Examples are: distillation units, washing machines,
    dishwashers, coolers, freezers. The resulting “shiftability” of power consumption
    can be a business model by offering that availability of load dispatching on the
    balancing power market. An example using PCM as cooling storage for refrigerators
    that has been investigated: A focus of this paper is the use of that load shifting
    ability to provide balancing power. Another emphasis is on the protection of individual
    consumer data: To keep the state of use of each individual consumer (actually:
    interactive consumer or “prosumer”) anonymous, but still performing the sales
    of balancing power, the orders for load-dispatching can be transmitted via transmitted
    via a regional, non-individual broadcasting message within the GSM network. Demonstrating
    DSMs capacities, abilities and limits concerning domestic applications is an important
    task to prepare large-scale implementation and to convince stakeholders. To reaching
    that goal, several realistic DSM scenarios for cooling applications and freezers
    have been developed with the prerequisite that DSM activities are supposed to
    be without comfort losses and without restrictions for consumers while the limits
    for lower and upper temperature for food are maintained.'
author:
- first_name: Stefan
  full_name: Krauter, Stefan
  id: '28836'
  last_name: Krauter
  orcid: 0000-0002-3594-260X
- first_name: Dirk
  full_name: Prior, Dirk
  last_name: Prior
citation:
  ama: Krauter S, Prior D. Minimizing storage costs by substituting centralized electrical
    storage by thermal storage at the end user, also suppling balancing power for
    grid operation. <i>Energy Procedia</i>. 2017;135:210-226. doi:<a href="https://doi.org/10.1016/j.egypro.2017.09.505">https://doi.org/10.1016/j.egypro.2017.09.505</a>
  apa: Krauter, S., &#38; Prior, D. (2017). Minimizing storage costs by substituting
    centralized electrical storage by thermal storage at the end user, also suppling
    balancing power for grid operation. <i>Energy Procedia</i>, <i>135</i>, 210–226.
    <a href="https://doi.org/10.1016/j.egypro.2017.09.505">https://doi.org/10.1016/j.egypro.2017.09.505</a>
  bibtex: '@article{Krauter_Prior_2017, title={Minimizing storage costs by substituting
    centralized electrical storage by thermal storage at the end user, also suppling
    balancing power for grid operation}, volume={135}, DOI={<a href="https://doi.org/10.1016/j.egypro.2017.09.505">https://doi.org/10.1016/j.egypro.2017.09.505</a>},
    journal={Energy Procedia}, author={Krauter, Stefan and Prior, Dirk}, year={2017},
    pages={210–226} }'
  chicago: 'Krauter, Stefan, and Dirk Prior. “Minimizing Storage Costs by Substituting
    Centralized Electrical Storage by Thermal Storage at the End User, Also Suppling
    Balancing Power for Grid Operation.” <i>Energy Procedia</i> 135 (2017): 210–26.
    <a href="https://doi.org/10.1016/j.egypro.2017.09.505">https://doi.org/10.1016/j.egypro.2017.09.505</a>.'
  ieee: S. Krauter and D. Prior, “Minimizing storage costs by substituting centralized
    electrical storage by thermal storage at the end user, also suppling balancing
    power for grid operation,” <i>Energy Procedia</i>, vol. 135, pp. 210–226, 2017.
  mla: Krauter, Stefan, and Dirk Prior. “Minimizing Storage Costs by Substituting
    Centralized Electrical Storage by Thermal Storage at the End User, Also Suppling
    Balancing Power for Grid Operation.” <i>Energy Procedia</i>, vol. 135, 2017, pp.
    210–26, doi:<a href="https://doi.org/10.1016/j.egypro.2017.09.505">https://doi.org/10.1016/j.egypro.2017.09.505</a>.
  short: S. Krauter, D. Prior, Energy Procedia 135 (2017) 210–226.
date_created: 2019-01-14T07:00:57Z
date_updated: 2022-01-06T07:03:13Z
department:
- _id: '53'
doi: https://doi.org/10.1016/j.egypro.2017.09.505
intvolume: '       135'
keyword:
- DSM
- load management
- load shifting
- PCM
- thermal storage
- balancing power
language:
- iso: eng
page: 210 - 226
publication: Energy Procedia
publication_identifier:
  issn:
  - 1876-6102
status: public
title: Minimizing storage costs by substituting centralized electrical storage by
  thermal storage at the end user, also suppling balancing power for grid operation
type: journal_article
user_id: '16148'
volume: 135
year: '2017'
...