저에너지주택의 지열히트펌프시스템 냉·난방 성능분석
저에너지주택의 지열히트펌프시스템 냉·난방 성능분석
Heating and Cooling Performance Analysis of Ground Source Heat Pump System in Low Energy House
저자명 백남춘, 김성범, 신우철
문서유형 학술논문학술지설비공학논문집 제28권 제10호 (2016년 10월) 387-393 1229-6422 KCI
발행정보 대한설비공학회 |2016년 |한국 |한국어
주제분야 공학 > 기타공학
서지링크 국회도서관 (청구기호 697.05 ㄱ364) , KISTI , 기계·건설공학연구정보센터
<초록>
A ground source heat pump system maintains a constant efficiency due to its stable heat source and radiant heat temperature which provide a more effective thermal performance than that of the air source heat pump system. As an eco-friendly renewable energy source, it can reduce electric power and carbon dioxide. In this study, we analyzed one year of data from a web based remote monitoring system to estimate the thermal performance of GSHP with the capacity of 3RT, which is installed in a low energy house located in Daejeon, Korea. This GSHP system is a hybrid system connected to a solar hot water system. Cold and hot water stored in a buffer tank is supplied to six ceiling cassette type fan coil units and a floor panel heating system installed in each room. The results are as follows. First, the GSHP system was operated for ten minutes intermittently in summer in order to decrease the heat load caused by super-insulation. Second, the energy consumption in winter where the system was operated throughout the entire day was 7.5 times higher than that in summer. Moreover, the annual COP of the heating and cooling system was 4.1 in summer and 4.2 in winter, showing little difference. Third, the outlet temperature of the ground heat exchanger in winter decreased from 13℃ in November to $9^{\circ}C$ in February, while that in summer increased from $14^{\circ}C$ to $17^{\circ}C$ showing that the temperature change in winter is greater than that in summer.
A ground source heat pump system maintains a constant efficiency due to its stable heat source and radiant heat temperature which provide a more effective thermal performance than that of the air source heat pump system. As an eco-friendly renewable energy source, it can reduce electric power and carbon dioxide. In this study, we analyzed one year of data from a web based remote monitoring system to estimate the thermal performance of GSHP with the capacity of 3RT, which is installed in a low energy house located in Daejeon, Korea. This GSHP system is a hybrid system connected to a solar hot water system. Cold and hot water stored in a buffer tank is supplied to six ceiling cassette type fan coil units and a floor panel heating system installed in each room. The results are as follows. First, the GSHP system was operated for ten minutes intermittently in summer in order to decrease the heat load caused by super-insulation. Second, the energy consumption in winter where the system was operated throughout the entire day was 7.5 times higher than that in summer. Moreover, the annual COP of the heating and cooling system was 4.1 in summer and 4.2 in winter, showing little difference. Third, the outlet temperature of the ground heat exchanger in winter decreased from 13℃ in November to $9^{\circ}C$ in February, while that in summer increased from $14^{\circ}C$ to $17^{\circ}C$ showing that the temperature change in winter is greater than that in summer.
녹색건축인증 조성법' 및 '건물에너지 소비증명제'가 의무화되어 시행되고 있습니다.
저희 (주)한국녹색인증원은 '지속가능한 저탄소 녹색건축인증 기술연구소'의 전문기업으로 설립되어, 빠른 제도 변화와 변모하는 건설환경에 이바지하고자 합니다. (주))한국녹색인증원은 건축, 도시, 생태분야가 녹색건축물에 접목될 수 있도록 적절한 요소분석을 통해 에너지 절감형 건축, 자생적 생태환경, 온열환경, 빛환경의 면밀한 조사와 연구로 고객의 삶의 질 향상 및 더 나아가 인류의 존속성에 그 목적을 두고 있습니다. 한국녹색인증원은 친환경컨설팅 전문업체로 주택성능등급, 그린홈, 에너지소비총량제, 에너지성능지표검토서, 건물에너지효율등급, 장수명주택인증, CPTED, BF 인증 등 각종 친환경 건축물 인증 을 컨설팅 해드리고 있습니다. 녹색건축인증 의 선도기업이 되겠습니다.
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