| 주 저자 | Beom-Jun Kim, Hye-Jin Cho, Soo-Jin Lee, Taek-Don Kwon, Jae-Weon Jeong |
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| 공동 저자 | - |
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| 소속 | Department of Architectural Engineering, College of Engineering, Hanyang University, Seoul, Republic of Korea |
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| Abstract | With increasing fossil fuel usage in building air-conditioning systems, air-source heat-pump systems are in the spotlight as an alternative HVAC system to reduce carbon emissions. The aim of this study is to evaluate a multi-functional cascade heat pump system for a residential building. A design method suited in residential buildings was applied to evaluate system performance of the proposed system. A reference system as separate two heat pumps was selected in charge of cooling, heating and hot water supply. The target building was set to residential of 100m2, 5 occupants are in the building. The thermal load of the target building was derived with commercial transient simulation tool, thermodynamic equations, and model equations built-in EnergyPlus were used. As a result, the proposed system saves 13% energy in cooling mode and 10% in heating mode compared with the reference system. The energy saving effect was occurred at the compression ratio of each high- and low-cycle decreasing due to the effect of recovering unused waste heat in summer and increasing the temperature of the refrigerant in winter. |
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| Keyword | Cascade heat pump, Air-source, Multi-functional system, Building energy-saving, Residential building |
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| 페이지 | pp. 0~0 |
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| 논문 파일 |
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| 게재일시 |
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| DOI | - |
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| 학회/저널명 | 14th IEA Heat Pump Conference |
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| 년도 | 2023 |
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| 추가 문구 | - |
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| 등록 일시 | 2025-06-18 18:49:20 |
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