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논문 기본 정보

자료유형
학술저널
저자정보
백남춘 (한국에너지기술연구원) 한승현 (한국환경건축연구원) 이왕제 (한국에너지기술연구원) 신우철 (대전대학교)
저널정보
대한설비공학회 설비공학논문집 설비공학논문집 제27권 제11호
발행연도
2015.11
수록면
581 - 586 (6page)

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초록· 키워드

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In this study, an analysis was performed on the performance of the solar water heating system with geo-thermal heat pump for a detached house. This system has a flat plate solar collector (8 ㎡) and a 3 RT heat pump. The heat pump acts as an auxiliary heater of the solar water heating system. These systems were installed at four individual houses with the same area of 100 ㎡. The monitoring results for one year are as follows.
(1) The average daily operating time of the solar system appeared to be 313 minutes in spring (intermediate season), and 135 minutes and 76 minutes in winter and summer respectively. The reason for the short operating time in summer is the high storage temperature due to low water heating load. The high storage temperature is caused by a decrease in collecting efficiency as well as by overheating. (2) The geothermal heat pump as an auxiliary heater mainly operates on days of poor insolation during the winter season. (3) Despite controlling for total house area, hot water consumption varies greatly according to the number of people in the family, hot water usage habits, etc. (4) The yearly solar fraction was 69.8 to 91.5 percent, which exceeds the maximum value of 80% as recommended by ASHRAE. So the solar collector area of 8 ㎡ appeared to be somewhat greater for the house with an area of 100 ㎡. (5) The observed annual efficiency of solar systems was relatively low at 13.5 to 23.6%, which was analyzed to be due to the decrease in thermal efficiency and the overheating caused by a high solar fraction.

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Abstract
1. 서론
2. 실증주택 및 태양열 급탕시스템 개요
3. 태양열 급탕시스템 열적거동
4. 태양열 급탕시스템 열성능 평가
5. 결론
References

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UCI(KEPA) : I410-ECN-0101-2016-553-002066136