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Study on the Thermal Performance of a Solar Assisted Heat Pump System with a Hybrid Collector

태양열/공기열 복합 집열기를 가지는 하이브리드 히트펌프 시스템의 열성능에 관한 연구

DO, KYU HYUNG;CHOI, BYUNG-IL;HAN, YONG-SHIK;KIM, MYUNGBAE;KIM, TAEHOON
도규형;최병일;한용식;김명배;김태훈

  • Received : 2016.04.01
  • Accepted : 2016.04.30
  • Published : 2016.04.30

Abstract

In the present work, a solar assisted heat pump (SAHP) system with a hybrid collector was analyzed. For this, a simplified thermodynamic model was developed. Based on the proposed model, the heat transfer rate, COP, and the annual operating hour of the SAHP system were estimated. The effect of the variation of system design parameters on the performance of the system was also examined. From the results, the performance was improved with increasing the effectiveness of heat exchangers and decreasing the difference between the evaporation temperature and the outlet brine temperature of the hybrid collector loop. Finally, the performance of SAHP system with a hybrid collector was compared with that of conventional serial and parallel SAHP systems. The SAHP system with a hybrid collector was substantially better than a series system and slightly worse than a parallel system for both the yearly averaged heat transfer rate and COP. However, the annual operating hour of the SAHP system with a hybrid collector was much better than that of a parallel system.

Keywords

Hybrid collector;Solar assisted heat pump;Thermal performance;Thermodynamic analysis model

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)