Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Analysis of Efficiency of Solar Hot Water System based on Energy Demand

에너지 수요처의 사용특성에 따른 태양열 급탕시스템의 효율분석

  • Jun, Yong-Joon (Department of Architectural Engineering, Dong-Eui University) ;
  • Park, Kyung-Soon (Architectural Engineering Major, Division of Urban, Architecture and Civil Engineering, Dong-Eui University)
  • 전용준 (동의대학교 건축공학과 대학원) ;
  • 박경순 (동의대학교 건설공학부 건축공학전공)
  • Received : 2017.09.12
  • Accepted : 2017.10.24
  • Published : 2017.10.30
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Abstract

In a hot water system using solar energy, solar heat is not simply collected by the heat collecting plate, but by heat exchange between the solar collector (flat or vacuum type) and the hot water storage tank. Therefore, the amount of collected solar energy depends on the hot water usage patterns that determine the temperature of the thermal storage tank. Also, if the temperature of the hot water stored in the storage tank exceeds the dangerous temperature during the summer, the heat must be released for safety. If the temperature of the hot water in the storage tank is low, it is necessary to heat by the auxiliary heat source. In this study, three buildings are defined as hotel, swimming pool, and school facilities. And we calculated the released heat energy, auxiliary heat source, and pure storage heat energy based on different hot water usage patterns and installation angle of the solar collectors.

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References

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