Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Thermal performance of solar cooling and hot water for the demonstration system

태양열 실증 시스템의 냉방 및 급탕 일일 열성능

  • Lee, Ho (Dept. of Architectural Engineering, Jeonju University) ;
  • Kim, Sang-Jin (Dept. of Architectural Engineering, Jeonju University) ;
  • Joo, Hong-Jin (Dept. of mechanical engineering, Inha University) ;
  • Kwak, Hee-Youl (Korea Institute of Energy Research)
  • 이호 (전주대학교 건축공학과 대학원) ;
  • 김상진 (전주대학교 건축공학과) ;
  • 주홍진 (인하대학교 기계공학과 대학원) ;
  • 곽희열 (한국에너지기술연구원)
  • Published : 2007.11.30
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Abstract

This study describes thermal performance of solar cooling and hot water for demonstration system with ETSC(Evacuated tubular solar collector) installed at Seo-gu art center of Kwangju. For demonstration study, a reading room with about 350㎡ was heated and cooled with the solar system. The system was consisted of ETSCs, storage tank, hot water supply tank, subsidiary boiler, subsidiary tank, absorption chiller, chiller storage tank, and cooling tower. The results of the experimental study indicated that the total solar energy gain as daily performance on a sunny day (August 25, 2007) with total daily radiation of $606\;W/m^2$ was 671 kWh, the collecting efficiency of 55%. In the case of supplies to heat source more than $83^{\circ}C$, cooling time operated by solar was driven 8.8 hours, cooling energy generated by solar system was 179 kWh and the solar cooling fraction was 79.2%, and hot water supplied with surplus heat source by the solar system was 201 kWh.

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