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논문 기본 정보

자료유형
학술저널
저자정보
이규남 (부경대학교) 정근주 (부경대학교)
저널정보
한국건축친환경설비학회 한국건축친환경설비학회 논문집 한국건축친환경설비학회 논문집 제14권 제1호
발행연도
2020.2
수록면
124 - 135 (12page)

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초록· 키워드

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In this study, the improvement methods of conventional heat sources were suggested and evaluated in order to reduce the heating energy of low-energy apartment buildings. To do this, the part load ratio (PLR) was analyzed for the apartment building that was designed in accordance with the energy saving design standard in Korea. The analysis results showed that the PLR of low-energy apartment buildings was very low, which may result in the reduced part-load efficiency of conventional gas boiler and the deteriorated energy-saving performance. To overcome this problem, it was suggested that the part load efficiency under low-PLR conditions should be enhanced by applying modulation boiler or boiler with high turn-down ratio. The improved part load efficiency allowed more energy saving up to 9.6%. It was also proposed that the low-energy apartment buildings should be equipped with condensing boilers, which have relatively high part load efficiency under low-PLR conditions. It was found that the condensing boiler can reduce the heating energy consumption by 27.0%. As for the operation strategy, it was suggested to decrease supply water temperature in order to increase the boiler efficiency while preventing discomfort due to overheating in the highly-insulated apartment buildings. It was found that water temperature of 40℃ can reduce the heating energy consumption by 13.1%.

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ABSTRACT
서론
공동주택 난방부하와 열원 용량 고찰
저에너지 공동주택 열원 개선 방안
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UCI(KEPA) : I410-ECN-0101-2020-546-000433855