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- 주제어 : Passive solar collector (검색결과 4 건)
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Moonki Jang,리신호,Piao Zailin,Zhang Yulong 한국농공학회 2008 한국농공학회논문집 Vol.50 No.3
The economics of a passive solar heating system(PSHS) with the pebble bed heat storage was evaluated, and the applications of the PSHS were analyzed, in this study. The results are as folows: The heating load, solar heat gain, and stored heat/year of the PSHS in the solar house model were found to be 10,778MJ, 3,438MJ, (conventional coal heating system, CCHS), which uses coal, were found to be USD1.60/year and USD60.90/year, respectively, and the yearly expenses of the PSHS were found to be 38 times less than those of the alternative heating system(CCHS). If it will be supposed that the life cycle of the passive solar heating system, according to the results of the LC analysis in the two systems, is 40 years, the total expenses for the life cycle of the PSHS and the CCHS will be USD1,431.50 and USD2,740.00, respectively. The period for the investment payback of the PSHS is six years.
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장문기,리신호,Jang, Moon-Ki,Yulong, Zhang,Zailin, Piao,Rhee, Shin-Ho The Korean Society of Agricultural Engineers 2008 한국농공학회논문집 Vol.50 No.3
The economics of a passive solar heating system (PSHS) with the pebble bed heat storage was evaluated, and the applications of the PSHS were analyzed, in this study. The results are as follows: The heating load, solar heat gain, and stored heat/year of the PSHS in the solar house model were found to be 10,778MJ, 3,438MJ, and 11,682MJ, respectively. The yearly energy expenses of the PSHS and the alternative heating system (conventional coal heating system, CCHS), which uses coal, were found to be USD 1.60/year and USD 60.90/year, respectively, and the yearly expenses of the PSHS were found to be 38 times less than those of the alternative heating system (CCHS). If it will be supposed that the life cycle of the passive solar heating system, according to the results of the LCC analysis in the two systems, is 40 years, the total expenses for the life cycle of the PSHS and the CCHS will be USD 1,431.50 and USD 2,740.00, respectively. The period for the investment payback of the PSHS is six years.
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정용호(Yong-Ho Jung),손장열(Jang-Yeul Sohn) 한국생활환경학회 2006 한국생활환경학회지 Vol.13 No.3
This study evaluates ventilation performance for apartment using solar radiation in order to improve energy savings and indoor air environment. Field measurements were performed in a full-scale mock-up model. A solar collection device and ordinary device for natural ventilation were installed in each room. Temperature and airflow velocity were monitored in each five minutes. Solar radiation and daylight illuminance were also measured. The concentration of indoor air for two conditions was monitored using a multi-gas monitor and tracer gas. The air change rates per hour (ACH) under the conditions were computed based on the concentrations. The air change rates per hour (ACH) using solar radiation exceeded the required air change rate per hour was linearly proportional to the solar radiation. The ventilation device using solar radiation contributed to provide better thermal environment with energy savings. In addition, it achieved better indoor air environment for residents compared with the natural ventilation device. In summary, the ventilation device using the solar collection device used in this study appears to provide increased ventilation rate per hour continuously.
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태양집열창방식 자연환기시스템에 의한 실내 환기효율 예측
정용호(Jung Yong-Ho) 한국건축친환경설비학회 2008 한국건축친환경설비학회 논문집 Vol.2 No.1
This study estimates ventilation efficiency for apartment using solar radiation in order to improve energy savings and indoor air environment. Field measurements were performed in a full-scale mock-up model. A solar collection device and ordinary device for natural ventilation were installed in each room. Temperature and airflow velocity were monitored in each five minutes. Solar radiation and daylight illuminance were also measured. The concentration of indoor air for two conditions was monitored using a multi-gas monitor and tracer gas. The air change rates per hour(ACH) under the conditions were computed based on the concentrations. The air change rates per hour (ACH) using solar radiation exceeded the required air change rate per hour was linearly proportional to the solar radiation. The ventilation device using solar radiation contributed to provide better thermal environment with energy savings. From the result of ventilation efficiency prediction for the 85㎡ area of practical residential building by CFD simulation. it was found that average age of air was 90.3min, nominal time constant was 82.9min. So total average ventilation efficiency was 0.918, this value means about 92% of indoor air could be mixed.
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