Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives
The integrated system, consisting of a two-stage high-temperature heat pump (HTHP) and thermal energy storage (TES), has been proposed as an effective solution to reduce CO2 emissions in industrial processes effectively.The water vapour HTHP, which can supply heat at 200°C, demonstrated a coefficien...
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| Format: | Article |
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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/10.1080/14786451.2024.2433580 |
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| author | Seon Tae Kim Steffen Klöppel Eberhard Nicke K. Malleswararao Marc Linder Panagiotis Stathopoulos |
| author_facet | Seon Tae Kim Steffen Klöppel Eberhard Nicke K. Malleswararao Marc Linder Panagiotis Stathopoulos |
| author_sort | Seon Tae Kim |
| collection | DOAJ |
| description | The integrated system, consisting of a two-stage high-temperature heat pump (HTHP) and thermal energy storage (TES), has been proposed as an effective solution to reduce CO2 emissions in industrial processes effectively.The water vapour HTHP, which can supply heat at 200°C, demonstrated a coefficient of performance (COP) between 4.4 and 7.5. Two different TES systems were introduced: concrete sensible heat storage (SHS) and strontium bromide/water (SrBr2/H2O) thermochemical energy storage (TCES). While the concrete SHS is limited to temperature below 200°C, the SrBr2/H2O TCES can deliver heat between 196°C and 228°C with higher cycle efficiency. The integrated system of HTHP and SrBr2/H2O TCES achieved a net present value (NPV) of €464,559 and €182,374 over a 20-years lifespan, with internal rates of return (IRR) ranging from 15.8% to 23.6%.This HTHP and TCES system has sufficient potential to replace fossil-fuel industrial boilers, leading to significant reduction in CO2 emissions in industrial processes. |
| format | Article |
| id | doaj-art-db51eb41041e451db5db935604ddf897 |
| 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-db51eb41041e451db5db935604ddf8972025-01-09T07:38:47ZengTaylor & Francis GroupInternational Journal of Sustainable Energy1478-64511478-646X2025-12-0144110.1080/14786451.2024.2433580Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectivesSeon Tae Kim0Steffen Klöppel1Eberhard Nicke2K. Malleswararao3Marc Linder4Panagiotis Stathopoulos5Institute of Low-Carbon Industrial Processes, German Aerospace Center (DLR), Cottbus/Zittau, GermanyInstitute of Low-Carbon Industrial Processes, German Aerospace Center (DLR), Cottbus/Zittau, GermanyInstitute of Low-Carbon Industrial Processes, German Aerospace Center (DLR), Cottbus/Zittau, GermanyInstitute of Engineering Thermodynamics, German Aerospace Center (DLR), Stuttgart, GermanyInstitute of Engineering Thermodynamics, German Aerospace Center (DLR), Stuttgart, GermanyInstitute of Low-Carbon Industrial Processes, German Aerospace Center (DLR), Cottbus/Zittau, GermanyThe integrated system, consisting of a two-stage high-temperature heat pump (HTHP) and thermal energy storage (TES), has been proposed as an effective solution to reduce CO2 emissions in industrial processes effectively.The water vapour HTHP, which can supply heat at 200°C, demonstrated a coefficient of performance (COP) between 4.4 and 7.5. Two different TES systems were introduced: concrete sensible heat storage (SHS) and strontium bromide/water (SrBr2/H2O) thermochemical energy storage (TCES). While the concrete SHS is limited to temperature below 200°C, the SrBr2/H2O TCES can deliver heat between 196°C and 228°C with higher cycle efficiency. The integrated system of HTHP and SrBr2/H2O TCES achieved a net present value (NPV) of €464,559 and €182,374 over a 20-years lifespan, with internal rates of return (IRR) ranging from 15.8% to 23.6%.This HTHP and TCES system has sufficient potential to replace fossil-fuel industrial boilers, leading to significant reduction in CO2 emissions in industrial processes.https://www.tandfonline.com/doi/10.1080/14786451.2024.2433580High-temperature heat pumpthermochemical energy storageR-718 (water)multistage vapor compression cyclethermodynamic analysistechno economic analysis |
| spellingShingle | Seon Tae Kim Steffen Klöppel Eberhard Nicke K. Malleswararao Marc Linder Panagiotis Stathopoulos Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives International Journal of Sustainable Energy High-temperature heat pump thermochemical energy storage R-718 (water) multistage vapor compression cycle thermodynamic analysis techno economic analysis |
| title | Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives |
| title_full | Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives |
| title_fullStr | Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives |
| title_full_unstemmed | Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives |
| title_short | Assessment of heat storage integration for water vapour compression heat pumps: thermodynamic and techno-economic perspectives |
| title_sort | assessment of heat storage integration for water vapour compression heat pumps thermodynamic and techno economic perspectives |
| topic | High-temperature heat pump thermochemical energy storage R-718 (water) multistage vapor compression cycle thermodynamic analysis techno economic analysis |
| url | https://www.tandfonline.com/doi/10.1080/14786451.2024.2433580 |
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