| 논문명 | 저에너지 공동주택의 감소된 난방부하를 고려한 개별 보일러 열원의 개선 방안/Improvement Methods of Individual Boiler Heat Source considering Reduced Heating Load of Low-Energy Apartment Buildings |
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| 저자명 | 이규남(Rhee, Kyu-Nam) ; 정근주(Jung, Gun-Joo) |
| 발행사 | 한국건축친환경설비학회 |
| 수록사항 | 한국건축친환경설비학회 논문집 , Vol.14 No.1 |
| 페이지 | 시작페이지(124) 총페이지(12) |
| ISSN | 1976-6483 |
| 주제분류 | 환경및설비 |
| 주제어 | 공동주택; 난방부하; 정격 용량; 부분부하; 부분부하율; 보일러 효율; 난방에너지 Apartment building; Heating load; Nominal capacity; Part load; Part load ratio; Boiler efficiency; Heating energy |
| 요약2 | 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%. |
| 소장처 | 한국건축친환경설비학회 |