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Multidisciplinary Optimization of Thermodynamic Cycles for Large-Scale Heat Pumps With Simultaneous Component Design

Gollasch, Jens Oliver and Lockan, Michael and Stathopoulos, Panagiotis and Nicke, Eberhard (2023) Multidisciplinary Optimization of Thermodynamic Cycles for Large-Scale Heat Pumps With Simultaneous Component Design. Journal of Engineering for Gas Turbines and Power, 2 (146). American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4063637. ISSN 0742-4795.

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Official URL: https://asmedigitalcollection.asme.org/gasturbinespower/article/doi/10.1115/1.4063637/1168996/Multi-Disciplinary-Optimization-Of-Thermodynamic


The performance of high temperature heat pumps (HTHPs) is highly dependent on the efficiency of its main components, which need to be optimally matched especially in closed cycles. The design process is therefore a challenging task as many disciplines and varying modeling depths need to be considered. Consequently, this is usually a sequential procedure beginning with cycle definition and raising the fidelity for component design. Fundamental design decisions are made based on assumptions for component performance. Mistakes in the phase of cycle definition are hard to reverse in later design stages. Therefore, this work introduces holistic approaches to the multidisciplinary design of closed Brayton cycles. Aerodynamic compressor design with two-dimensional throughflow analysis and geometry based heat exchanger sizing are simultaneously optimized with thermodynamic cycle parameters. The presented methodologies make use of highly sophisticated design tools drawing on many years of experience in gas turbine design. The results demonstrate that holistic heat pump optimization can be successfully performed with reasonable computational effort. The advantages compared to conventional sequential design are elaborated. A comparison of two optimization concepts indicates that splitting up the design vectors of cycle and components shows the tendency to improve robustness. Finally, the tradeoff between system compactness and performance is demonstrated with a multi-objective optimization study. [DOI: 10.1115/1.4063637]

Item URL in elib:https://elib.dlr.de/199533/
Document Type:Article
Title:Multidisciplinary Optimization of Thermodynamic Cycles for Large-Scale Heat Pumps With Simultaneous Component Design
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lockan, MichaelUNSPECIFIEDhttps://orcid.org/0009-0002-8765-8667UNSPECIFIED
Date:21 November 2023
Journal or Publication Title:Journal of Engineering for Gas Turbines and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:American Society of Mechanical Engineers (ASME)
Keywords:Optimization, Cycle Design, Component Design, Holistic Design, Axial Compressors, Heat Exchangers, Heat Pump, Brayton Cycle
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:High-Temperature Thermal Technologies
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Low-Carbon Industrial Processes
Location: Cottbus
Institutes and Institutions:Institute of Low-Carbon Industrial Processes
Institute of Low-Carbon Industrial Processes > Simulation and Virtual Design
Deposited By: Gollasch, Jens Oliver
Deposited On:23 Nov 2023 11:29
Last Modified:30 Nov 2023 08:02

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