Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Experimental Study on the Operating Characteristics of a Solar Hybrid Heat Pump System according to Indoor Setting Temperature

실내설정온도에 따른 태양열 하이브리드 열펌프 시스템 운전특성에 대한 실험적 연구

  • Kim, Won-Seok (Dept. of Mechanical Eng., Graduate School, Chosun University) ;
  • Cho, Hong-Hyun (Dept. of Mechanical Eng., Chosun University)
  • 김원석 (조선대학교 대학원 기계공학과) ;
  • 조홍현 (조선대학교 기계공학과)
  • Received : 2010.09.13
  • Accepted : 2010.12.20
  • Published : 2010.12.30
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Abstract

Experimental study on the operating characteristics of a solar hybrid heat pump system according to indoor setting temperature were carried out during spring and winter season. The system was consisted of a concentric evacuated tube solar collector, heat medium tank, heat storage tank, and heat pump. As a result, the heating load was increased by 21.1% when the indoor setting temperature rose by 2oC for the same ambient temperature. Besides, the spring season had good outdoor conditions compared to the winter season, therefore the heating load was reduced and heat gain by collector increased, relatively. In case of the winter season, the solar fraction was shown less than 10% because the heat losses of system and space increased considerably. The solar fraction decreased significantly as the indoor setting temperature increased.

Keywords

References

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