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논문 기본 정보

자료유형
학술저널
저자정보
이진국 (부경대학교) 최광환 (부경대학교)
저널정보
한국태양에너지학회 한국태양에너지학회 논문집 한국태양에너지학회 논문집 제35권 제6호
발행연도
2015.12
수록면
25 - 33 (9page)

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초록· 키워드

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In this study, heating performance of the air-cooled heat pump with vapor-injection (VI) cycles, re-heater and solar heat storage tank was investigated experimentally. Devices used in the experiment were comprised of a VI compressor, re-heater, economizer, variable evaporator, flat-plate solar collector for hot water, thermal storage tank, etc. As working fluid, refrigerant R410A for heat pump and propylene glycol (PG) for solar collector were used. In this experiment, heating performance was compared by three cycles, A, B and C. In case of Cycle B, heat exchange was conducted between VI suction refrigerant and inlet refrigerant of condenser by re-heater (Re-heater in Fig. 3, No. 3) (Cycle B), and Cycle A was not use re-heater on the same operating conditions. In case of Cycle C, outlet refrigerant from evaporator go to thermal storage tank for getting a thermal energy from solar thermal storage tank while re-heater also used. As a result, Cycle C reached the target temperature of water in a shorter time than Cycle B and Cycle A. In addition, it was founded that, as for the coefficient of heating performance(COPh), the performance in Cycle C was improved by 13.6% higher than the performance of Cycle B shown the average COPh of 3.0 and by 18.9% higher than the performance of Cycle A shown the average COPh of 2.86. From this results, It was confirmed that the performance of heat pump system with refrigerant re-heater and VI cycle can be improved by applying solar thermal energy as an auxiliary heat source.

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Abstract
1. 서론
2. 실험장치 및 방법
3. 실험결과 및 고찰
4. 결론
Reference

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UCI(KEPA) : I410-ECN-0101-2016-563-002322511