표준기상 데이터와 열해석을 이용한 태양광열 모듈의 필요 냉각수량 산출

Calculation of Required Coolant Flow Rate for Photovoltaic-thermal Module Using Standard Meteorological Data and Thermal Analysis

  • 이천규 (한국생산기술연구원 탄소중립산업기술연구부문) ;
  • 정효재 (한국생산기술연구원 탄소중립산업기술연구부문)
  • Lee, Cheonkyu (Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology) ;
  • Jeong, Hyo Jae (Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology)
  • 투고 : 2022.10.07
  • 심사 : 2022.12.12
  • 발행 : 2022.12.31

초록

Photovoltaics (PV) power generation efficiency is affected by meteorological factors such as temperature and wind speed. In general, it is known that the power generation amount decreases because photovoltaics panel temperature rises and the power generation efficiency decreases in summer. Photovoltaics Thermal (PVT) power generation has the ad-vantage of being able to produce heat together with power, as well as preventing the reduction in power generation efficien-cy and output due to the temperature rise of the panel. In this study, the amount of heat collected by season and time was calculated for photovoltaics thermal modules using the International Weather for Energy Calculations (IWEC) data provided by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Based on this, we propose a method of predicting the temperature of the photovoltaics panel using thermal analysis and then calculating the flow rate of coolant to improve power generation efficiency. As the results, the photovoltaics efficiencies versus time on January, April, July, and October in Jeju of the Republic of Korea were calculated to the range of 15.06% to 17.83%, and the maxi-mum cooling load and flow rate for the photovoltaics thermal module were calculated to 121.16 W and 45 cc/min, respec-tively. Though this study, it could be concluded that the photovoltaics thermal system can be composed of up to 53 modules with targeting the Jeju, since the maximum capacity of the coolant circulation pump of the photovoltaics thermal system applied in this study is 2,400 cc/min.

키워드

과제정보

본 연구는 산업통상자원부의 제조분야 온실가스 미세먼지 동시저감 기술개발사업 "예열연소 부하를 절감하는 배열회수 열에너지저장 시스템 개발"(No. 20015703)의 지원으로 수행되었습니다.

참고문헌

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