Optimal Supply Scheme of Solar Hot Water Heating Systems for the Apartment Complexes

공동주택용 태양열 급탕시스템 최적공급 방안 해석연구

  • Lee, Chul-Sung (Dept. of Architectural Eng. Graduate School of Hanbat National University) ;
  • Park, Ja-Son (EAGON Window&Door Systems Research Institute) ;
  • Park, Jae-Wan (Graduate School, Daejeon University) ;
  • Shin, U-Cheul (Dept. of Architectural Eng. Daejeon University) ;
  • Yoon, Jong-Ho (Dept. of Architectural Eng. Hanbat National University)
  • 이철성 (한밭대학교 대학원 건축공학과) ;
  • 박재성 ((주)이건창호시스템 연구소) ;
  • 박재완 (대전대학교 대학원 건축공학과) ;
  • 신우철 (대전대학교 건축공학과) ;
  • 윤종호 (한밭대학교 건축공학과)
  • Published : 2008.11.14

Abstract

This study is on the availability of solar thermal energy in Korean high-rise apartment complex depending on the installation type of solar collectors to roof or facade of building. Firstly, solar access evaluation on the roof and the facade of apartment buildings was carried out. The total thermal load of each apartment unit and building was investigated and matched with the energy which was produced by solar thermal systems on the facade. The considered layout patterns of apartment buildings were '一type', 'alternative 一type', 'ㄱtype' and 'ㅁtype' and that was analyzed in prior studies. Extensive dynamic hourly energy simulations with the solar thermal system were Performed with the TRNSYS of SEL. We assumed that the apartment complex is composed of 9 buildings and located in Daejeon. The collectors are the heat-pip evacuated tube collectors and the number of collectors are 45 tubes We assumed that the collectors are installed on the balcony of each unit and the angle of incilnation is $90^{\circ}$. As a result, the supply amount of solar thermal systems is about 4,850,086kJ/hr and the solar fraction is about 66%. The solar fraction according to each azimuth is about 66% on the south, 62% on the south-east $30^{\circ}$ and 56% on the south-east $60^{\circ}$. So, we quantitatively got a line on the optimal azimuth for installing the solar thermal systems. The solar fraction has differences from 5% to 15% of each floor, 6th, 12th and 20th and those tendencies are same in analyzed each 4 types of the apartment complexes.

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