@article{64158,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>
                    Electrification offers a promising route to reduce CO
                    <jats:sub>2</jats:sub>
                    emissions in the chemical sector. In distillation, heat pump integration such as mechanical vapor recompression (MVR) can replace fossil‐based utilities, but column parameters like pressure drop should be accurately considered when assessing integration potential. This work discusses the effect of feed preheating and column pressure drop on MVR integration potential. The two binary separation tasks, methanol–water and benzene–toluene, are analyzed to identify energetically optimal preheater and MVR design. In addition, MVR integration in a bioethanol vacuum distillation sequence is evaluated for utility demand, CO
                    <jats:sub>2</jats:sub>
                    emissions, and economic feasibility under varying pressure drops, preheating configurations, and cost and emission scenarios.
                  </jats:p>}},
  author       = {{Hochhaus, Thorben and Siepmann, Sebastian and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression}}},
  doi          = {{10.1002/cite.70074}},
  year         = {{2026}},
}

@article{64159,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>Separation processes, such as distillation and stripping, are highly energy‐intensive. Typically, energy is supplied indirectly via a reboiler, which is often associated with heat losses. We present a preliminary theoretical evaluation of a novel concept to supply energy directly inside the column using heatable structured packings. These packings can be produced by multi‐material 3D printing, resulting in a conductive inner layer and an insulating outer layer. Functioning as electric resistance heaters, these packings serve as heating elements. In this numerical study, we compared different scenarios of energy supply along the height of the column, including uniform distribution, applying a temperature profile, and using or omitting a reboiler.</jats:p>}},
  author       = {{Lutters, Nicole and Brüne, Sascha and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes}}},
  doi          = {{10.1002/cite.70076}},
  year         = {{2026}},
}

@article{64876,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>This study shows the applicability of ultrasonic sensors for measuring two‐phase layer heights in sieve tray columns under dynamic operating conditions. Although these sensors are known for their precision in stationary systems, their reliability under fluctuating flow conditions has remained unclear. To validate their accuracy, ultrasonic measurements were compared with both automated image analysis via a Python algorithm and manual video evaluation. Results show that ultrasonic sensors maintain high precision at moderate gas loads and with small hole diameters. Increased gas loads and turbulence, however, reduced measurement accuracy due to signal scattering. The findings highlight the potential of ultrasonic sensing for real‐time, noninvasive monitoring in dynamic multiphase systems.</jats:p>}},
  author       = {{Breuer, Niklas and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  publisher    = {{Wiley}},
  title        = {{{Application of Ultrasonic Sensors for Determining the Height of Dynamic Two‐Phase Layers in Tray Columns}}},
  doi          = {{10.1002/cite.70087}},
  year         = {{2026}},
}

@article{64916,
  abstract     = {{The joining of dissimilar materials, such as steel and aluminum, entails significant challenges during thermal curing processes due to differing coefficients of thermal expansion. This study addresses the formation of “viscous fingering” instabilities in structural adhesive joints, which are induced by thermally driven relative displacements during the liquid phase of the adhesive. Using a component-like specimen “bridge specimen,” the dependency of this phenomenon on process temperature and structural stiffness (rivet distance) was characterized. Experimental results reveal that while the relative displacement scales cubically with the free buckling length, the resulting adhesive area reduction follows an exponential trend, leading to a loss of effective bond area of up to 79%, which significantly compromises the joint strength in automotive applications. To predict these process-induced defects, a thermo-chemo-viscoelastic-viscoplastic adhesive model implemented in LS-DYNA was applied. The model combines curing kinetics, viscoelastic relaxation, and pressure-dependent plasticity and features a geometric damage parameter (D) that captures the adhesive area reduction caused by viscous fingering as an exponential function of the accumulated normal strain in the liquid phase. This damage parameter, calibrated on base-specimen level, was transferred to the component geometry. The simulation demonstrated high predictive accuracy with a maximum deviation of the adhesive area reduction of 3.1% compared to experimental data. This validates the model’s capability to predict manufacturing-induced damage in complex hybrid structures solely based on thermal boundary conditions.}},
  author       = {{Al Trjman, Mohamad and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia}},
  issn         = {{0021-8464}},
  journal      = {{The Journal of Adhesion}},
  keywords     = {{Adhesive area reduction, CED coating process, delta alpha problem, epoxy structural adhesive, influence of manufacture, multi-material design, numerical simulation (FEM), relative displacements, viscous fingering (saffman-taylor-instability).}},
  pages        = {{1--24}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures}}},
  doi          = {{10.1080/00218464.2026.2644394}},
  year         = {{2026}},
}

@inproceedings{65267,
  author       = {{Hollenhorst, Viola and Riese, Julia and Kenig, Eugeny Y.}},
  location     = {{Luzern, Schweiz}},
  title        = {{{Investigation of Surface Roughness Effects on Flow Patterns and Thermal Performance in Additively Manufactured Channels}}},
  year         = {{2026}},
}

@article{58672,
  author       = {{Al Trjman, Mohamad and Salten, Alexander Heinrich Johannes and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia and Kenig, Eugeny}},
  issn         = {{0143-7496}},
  journal      = {{International Journal of Adhesion and Adhesives}},
  publisher    = {{Elsevier BV}},
  title        = {{{Viscous fingering in adhesive bonding}}},
  doi          = {{10.1016/j.ijadhadh.2025.103960}},
  volume       = {{139}},
  year         = {{2025}},
}

@inproceedings{58761,
  author       = {{Dechert, Christopher and Riese, Julia and Franke, Patrick}},
  location     = {{Bochum}},
  title        = {{{Untersuchung zur Vergleichbarkeit von verschiedenen Methoden zur Bestimmung der effektiven Phasengrenzflächen}}},
  year         = {{2025}},
}

@inproceedings{58762,
  author       = {{Dechert, Christopher and Riese, Julia}},
  location     = {{Bochum}},
  title        = {{{Bewertung des Potentiales der Elektrobenetzung für Trennkolonnen}}},
  year         = {{2025}},
}

@inproceedings{60494,
  abstract     = {{Pillow-plate heat exchangers (PPHEs) represent a viable alternative to conventional shell-and-tube and plate heat exchangers. The waviness of their channels intensifies fluid mixing in the boundary layers and facilitates heat transfer. Applying secondary surface structuring can further enhance the overall thermo-hydraulic performance of PPHEs, thus increasing their competitiveness against conventional heat exchangers. In this work, streamlined secondary structures applied on the PPHE surface were studied numerically to explore their potential in enhancing near-wall fluid mixing. Computational fluid dynamics (CFD) simulations of single-phase turbulent flow in the inner PPHE channel were performed and pressure drop, heat transfer coefficients, and overall thermo-hydraulic efficiency were determined. The simulation results clearly demonstrate a favourable influence of secondary structuring on the heat transfer performance of PPHEs.</jats:p>}},
  author       = {{Afsahnoudeh, Reza and Riese, Julia and Kenig, Eugeny Y.}},
  booktitle    = {{Systems and Control Transactions}},
  issn         = {{2818-4734}},
  publisher    = {{PSE Press}},
  title        = {{{Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Streamlined Secondary Structures: A Numerical Analysis}}},
  doi          = {{10.69997/sct.178665}},
  volume       = {{4}},
  year         = {{2025}},
}

@inproceedings{60493,
  abstract     = {{Heat pumps play a crucial role in decarbonizing the chemical industry. The integration and sizing of heat pumps in chemical processes is a challenging task in multi-product chemical processes due to the fluctuating waste heat supply and heat demand. Integrating heat pumps may require a retrofit of the utility system. Mathematical optimization is a useful tool to tackle this challenge by enabling the analysis of correlation between relevant system parameters and equipment sizing. This study demonstrates the utilization of mathematical optimization and parameter studies for utility system equipment sizing addressing fluctuating heat supply and demand profiles.</jats:p>}},
  author       = {{Hochhaus, Thorben and Wloch, Johannes and Grünewald, Marcus and Riese, Julia}},
  booktitle    = {{Systems and Control Transactions}},
  issn         = {{2818-4734}},
  publisher    = {{PSE Press}},
  title        = {{{A Data-Driven Conceptual Approach to Heat Pump Sizing in Chemical Processes with Fluctuating Heat Supply and Demand}}},
  doi          = {{10.69997/sct.196662}},
  volume       = {{4}},
  year         = {{2025}},
}

@inproceedings{56194,
  author       = {{Afsahnoudeh, Reza and Riese, Julia and Kenig, Eugeny Y.}},
  booktitle    = {{World Congress on Mechanical, Chemical, and Material Engineering}},
  issn         = {{2369-8136}},
  location     = {{Barcelona}},
  publisher    = {{Avestia Publishing}},
  title        = {{{A Numerical Analysis of Thermo-Hydraulic Performance of Pillow-Plate Heat Exchangers with Ellipsoidal Secondary Structures}}},
  doi          = {{10.11159/htff24.145}},
  year         = {{2024}},
}

@article{52229,
  author       = {{Bruns, Bastian and Gross, Michel and Grünewald, Marcus and Bertsch, Valentin and Riese, Julia}},
  issn         = {{0959-6526}},
  journal      = {{Journal of Cleaner Production}},
  keywords     = {{Industrial and Manufacturing Engineering, Strategy and Management, General Environmental Science, Renewable Energy, Sustainability and the Environment, Building and Construction}},
  publisher    = {{Elsevier BV}},
  title        = {{{A multi-step framework for the design of a flexible power-to-methane process}}},
  doi          = {{10.1016/j.jclepro.2024.141434}},
  year         = {{2024}},
}

@article{52388,
  author       = {{Riese, Julia and Fasel, Henrik and Pannok, Maik and Lier, Stefan}},
  issn         = {{2352-5509}},
  journal      = {{Sustainable Production and Consumption}},
  keywords     = {{Industrial and Manufacturing Engineering, Renewable Energy, Sustainability and the Environment, Environmental Chemistry, Environmental Engineering}},
  publisher    = {{Elsevier BV}},
  title        = {{{Decentralized production concepts for bio-based polymers - implications for supply chains, costs, and the carbon footprint}}},
  doi          = {{10.1016/j.spc.2024.03.001}},
  year         = {{2024}},
}

@article{55654,
  author       = {{Röder, Lilli Sophia and Gröngröft, Arne and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0098-1354}},
  journal      = {{Computers &amp; Chemical Engineering}},
  publisher    = {{Elsevier BV}},
  title        = {{{Optimization of Design and Operation of a Digestate Treatment Cascade for Demand Side Management Implementation}}},
  doi          = {{10.1016/j.compchemeng.2024.108838}},
  year         = {{2024}},
}

@inproceedings{55150,
  author       = {{Ehlert, Thomas and Pöschmann, René and Müller, Steffen and Paschold, Jürgen and Brösigke, Georg and Repke, Jens-Uwe and Riese, Julia and Kenig, Eugeny Y.}},
  location     = {{Bochum}},
  title        = {{{Modellierung kleinskaliger Trennapparate mit Strukturpackungen und der Scale-up mit dem Ansatz der hydrodynamischen Analogien}}},
  year         = {{2024}},
}

@article{58758,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The advantages of implementing demand side management (DSM) strategies in biogas production are explored. Specifically, the influence of agitation intervals on biogas production and the economic advantages of DSM in fermenter agitation are examined. The model‐based study highlights the detrimental effects of insufficient agitation, such as reduced active reaction volume and diminished biogas yield. The article further delves into the optimal agitation intervals corresponding to different electricity price levels and assesses the implications of DSM on biogas production. Results substantiate that such strategies, particularly at high and low electricity prices, can increase profit while reducing greenhouse gas emissions.</jats:p>}},
  author       = {{Röder, Lilli Sophia and Gröngröft, Arne and Dotzauer, Martin and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0009-286X}},
  journal      = {{Chemie Ingenieur Technik}},
  number       = {{1-2}},
  pages        = {{51--62}},
  publisher    = {{Wiley}},
  title        = {{{Economic and Ecological Evaluation of Demand Side Management in Biogas Production – A Dynamic Simulation Approach*}}},
  doi          = {{10.1002/cite.202300157}},
  volume       = {{97}},
  year         = {{2024}},
}

@article{47551,
  author       = {{Hochhaus, Thorben and Bruns, Bastian and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0098-1354}},
  journal      = {{Computers & Chemical Engineering}},
  keywords     = {{Computer Science Applications, General Chemical Engineering}},
  publisher    = {{Elsevier BV}},
  title        = {{{Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential}}},
  doi          = {{10.1016/j.compchemeng.2023.108132}},
  volume       = {{170}},
  year         = {{2023}},
}

@article{51360,
  author       = {{Röder, Lilli Sophia  and Gröngröft, Arne and Grünewald, Marcus  and Riese, Julia}},
  journal      = {{Chemical Engineering Transactions}},
  pages        = {{421--426}},
  title        = {{{Demand Side Management Implementation in Downstream Digestate Treatment of a Biomethane Biorefinery}}},
  doi          = {{10.3303/CET23105071}},
  volume       = {{105}},
  year         = {{2023}},
}

@article{49580,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The time‐dependent adjustment of a system's power demand simultaneously with current power generation is commonly referred to as demand side management (DSM). DSM strategies are based on the flexibility to purchase electricity at times when prices are low, which can result in monetary benefits. One option to increase the flexibility of continuously operated processes is to oversize them. From an economic point of view, this leads to an increased investment. DSM only serves an economic purpose if the monetary benefits exceed this increase in capital costs. The main goal of this contribution is to develop a decision support tool to help evaluate unit operations regarding their feasibility for DSM implementation. In a case study, the decision support tool was applied to show its functionality on a biomethane production plant. The results show that with the help of the decision support tool, evaluating unit operations concerning their economic DSM potential is possible.</jats:p>}},
  author       = {{Röder, Lilli and Etzold, Hendrik and Gröngröft, Arne and Grünewald, Marcus and Riese, Julia}},
  issn         = {{1932-104X}},
  journal      = {{Biofuels, Bioproducts and Biorefining}},
  keywords     = {{Renewable Energy, Sustainability and the Environment, Bioengineering}},
  publisher    = {{Wiley}},
  title        = {{{Decision support tool to determine the suitability of demand side management implementation in continuously operated processes – A biorefinery case study}}},
  doi          = {{10.1002/bbb.2558}},
  year         = {{2023}},
}

@article{47558,
  author       = {{Röder, Lilli Sophia and Gröngröft, Arne and Grünewald, Marcus and Riese, Julia}},
  issn         = {{0363-907X}},
  journal      = {{International Journal of Energy Research}},
  keywords     = {{Energy Engineering and Power Technology, Fuel Technology, Nuclear Energy and Engineering, Renewable Energy, Sustainability and the Environment}},
  number       = {{13}},
  pages        = {{17733--17754}},
  publisher    = {{Hindawi Limited}},
  title        = {{{Options for demand side management in biofuel production: A systematic review}}},
  doi          = {{10.1002/er.8353}},
  volume       = {{46}},
  year         = {{2022}},
}