Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle
High-temperature heat pumps offer a promising approach to deliver CO2-neutral process heat by upgrading waste heat with electricity from renewable resources. In this work, a heat pump cycle including inter cooled compression and reheated expansion is presented and compared to the simple Brayton cycl...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | International Journal of Sustainable Energy |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/14786451.2025.2515452 |
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| author | Nancy Kabat Enrico Jende Fatma Cansu Yücel Panagiotis Stathopoulos |
| author_facet | Nancy Kabat Enrico Jende Fatma Cansu Yücel Panagiotis Stathopoulos |
| author_sort | Nancy Kabat |
| collection | DOAJ |
| description | High-temperature heat pumps offer a promising approach to deliver CO2-neutral process heat by upgrading waste heat with electricity from renewable resources. In this work, a heat pump cycle including inter cooled compression and reheated expansion is presented and compared to the simple Brayton cycle. Numerical simulations are used to investigate the provision of process heat at 250°C and process cooling at −30°C. An exergy analysis and parameter study is carried out. The results show an improved performance of the complex cycle as a result of more efficient temperature profiles improving the exergy utilisation. While previous studies often consider idealised process variants or are focused on individual purposes, the present work contributes to the analysis and evaluation of complex cycles with multi-stage process control while simultaneously supplying heat and cold. A deeper understanding of the thermodynamic interactions provides a reliable basis for the energy-related design of systems with multiple temperature levels. |
| format | Article |
| id | doaj-art-784bb927b672490d8d3075010bfd644a |
| institution | Kabale University |
| issn | 1478-6451 1478-646X |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Sustainable Energy |
| spelling | doaj-art-784bb927b672490d8d3075010bfd644a2025-08-20T03:30:01ZengTaylor & Francis GroupInternational Journal of Sustainable Energy1478-64511478-646X2025-12-0144110.1080/14786451.2025.2515452Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycleNancy Kabat0Enrico Jende1Fatma Cansu Yücel2Panagiotis Stathopoulos3German Aerospace Center (DLR), Institute of Low-Carbon Industrial Processes Cottbus, GermanyGerman Aerospace Center (DLR), Institute of Low-Carbon Industrial Processes Cottbus, GermanyGerman Aerospace Center (DLR), Institute of Low-Carbon Industrial Processes Cottbus, GermanyGerman Aerospace Center (DLR), Institute of Low-Carbon Industrial Processes Cottbus, GermanyHigh-temperature heat pumps offer a promising approach to deliver CO2-neutral process heat by upgrading waste heat with electricity from renewable resources. In this work, a heat pump cycle including inter cooled compression and reheated expansion is presented and compared to the simple Brayton cycle. Numerical simulations are used to investigate the provision of process heat at 250°C and process cooling at −30°C. An exergy analysis and parameter study is carried out. The results show an improved performance of the complex cycle as a result of more efficient temperature profiles improving the exergy utilisation. While previous studies often consider idealised process variants or are focused on individual purposes, the present work contributes to the analysis and evaluation of complex cycles with multi-stage process control while simultaneously supplying heat and cold. A deeper understanding of the thermodynamic interactions provides a reliable basis for the energy-related design of systems with multiple temperature levels.https://www.tandfonline.com/doi/10.1080/14786451.2025.2515452High-temperature heat pumpBrayton cycleinter cooled compressionreheated expansionexergy analysisparametric study |
| spellingShingle | Nancy Kabat Enrico Jende Fatma Cansu Yücel Panagiotis Stathopoulos Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle International Journal of Sustainable Energy High-temperature heat pump Brayton cycle inter cooled compression reheated expansion exergy analysis parametric study |
| title | Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle |
| title_full | Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle |
| title_fullStr | Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle |
| title_full_unstemmed | Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle |
| title_short | Thermodynamic analysis of a novel high-temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed Brayton cycle |
| title_sort | thermodynamic analysis of a novel high temperature heat pump cycle with inter cooled compression and reheated expansion based on the reversed brayton cycle |
| topic | High-temperature heat pump Brayton cycle inter cooled compression reheated expansion exergy analysis parametric study |
| url | https://www.tandfonline.com/doi/10.1080/14786451.2025.2515452 |
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