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백남춘(Baek Nam-Choon),윤종호(Yoon Jong-Ho),윤응상(Yoon E. S),유창균(Yoo C. G),주문창(Joo M. C),손선우(Son S. W) 한국태양에너지학회 2007 한국태양에너지학회 학술대회논문집 Vol.- No.-
This study is on the evaluation of KIER Zero Energy Solar House(ZeSH). This ZeSH was designed and constructed for the goal of 70% self sufficiency only thermal loads. Various innovative technologies for reducing thermal load such as super insulation, high performance window, passive solar systems, ventilation heat recovery system , etc are applied in this ZeSH. In this study, the performance of the active solar heating system with geothermal heat pump as an auxiliary energy system and the energy self sufficiency rate are especially analyzed by experiment. Indoor setting temperature of ZeSH is 20℃ throughout the experimental period. As a result, the performance of active solar system is 35 to 40% depending on the various ambient condition and the solar fraction for heating season is about 74%.
창호의 유효투과율을 고려한 제로에너지 태양열 주택의 난방부하 분석에 관한 연구
손선우(Son Sun-Woo),백상훈(Baek Sang-Hun),이현수(Lee Hyun-soo),백남춘(Baek Nam-Choon),서승직(Suh Seung-Jik) 한국태양에너지학회 2009 한국태양에너지학회 논문집 Vol.29 No.2
To reduce the building energy consumption, the major advanced nations are conducting actively many researches on so called a "self-sufficient building(or other words zero energy building)" which can support its required energy by itself. Given this background, KIER(Korea Institute of Energy Research) built full size test-bed of the zero energy solar house in early 2001, and has studied on the self-sufficient heating load up to now. We analyse the sensitivity between the heating load and the solar radiation gain according to the change the effective transmittance of windows. The authors classified 9 cases by solar transmittance of glass. The results demonstrate the solar radiation amount is 0.466 MWh from the eastern zone of Fl.,1(the first floor), 0.332 MWh from Fl.,2(the second floor), 1.194 MWh form the southern zone of F1., and 0.822 MWh from the southern zone of Fl.,2 on the case 1(each cases are classified by window types). On the case 9, the solar radiation amount is 3.127 MWh, 2.662 MWh, 8.799 MWh and 6.078 MWh from the same condition. For the Fl.,1, the amount of Heat Load that is saved per year ranged 10.5 to 48 %, and the reduction was anywhere from 0.2 to 17.9% for Fl.,2.
제로에너지 솔라하우스(KIER ZeSH-Ⅱ)의 에너지성능 측정 및 에너지자립도 분석
정선영(Jeong, Seon-Yeong),백남춘(Baek, Nam-Choon),윤종호(Yoon, Jong-Ho),신우철(Shin, U-Cheul),김용경(Kim, Yong-Kyoung),강승훈(Kang, Seung-Hoon) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.12
In this study, the performance measurement and energy analysis of KIER Zero Energy Solar House (KIER ZeSH-Ⅱ) was carried out. KIER ZeSH-Ⅱ was designed and constructed in the end of 2009 for the purpose of more than 70% energy self-sufficiency in total load as well as less than 20% of additional construction cost. The several building energy conservation technologies like as super insulation, high performance window, waste heat recovery system, etc and renewable energy system. The renewable heating and cooling system is a kind of solar thermal system combined with geo-source heat pump as a back-up device. The capacity of 3.15㎾p solar BIPV system was also installed on the roof. The measurement by monitoring system of ZeSH-Ⅱ was conducted for one year from January 2010 to December 2010. The energy self-sufficiency and economic analysis were conducted based on the this monitoring result. As a result, the energy self sufficiency is about 94% which is higher than that of the target. The results proved that commercial possibility of next generation Zero Energy Solar House.
Study on the Operation of the Solar Heating System with Ground Source Heat Pump as a Back-up Device
김휘동(Kim, Hwidong),백남춘(Baek, Namchoon),이진국(Lee, Jinkook),신우철(Shin, Uchul) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06
The study on the operation characteristics of solar space and water heating system with ground source heat pump (GSHP) as a back-up device was carried out. This system, called solar thermal and geothermal hybrid system (ST/G), was installed at Zero Energy Solar House II (KIER ZeSH-II) in Korea Institute of Energy Research. This ST/G hybrid system was developed to supply all thermal load in a house by renewable energy. The purpose of this study is to find out that this system is optimized and operated normally for the heating load of ZeSH-II. Experiment was continued for seven months, from October to April. The analysis was conducted as followings ; - the contribution of solar thermal system. - the appropriateness of GSHP as a back-up device. - the performance of solar thermal and ground source heat pump system respectively. - the adaptation of thermal peak load - the operation characteristics of hybrid system under different weather conditions. Finally the complementary measures for the system simplification was referred for the commercialization of this hybrid system.
자연형태양열 트롬월 축열벽 시스템의 열성능 특성 실측 분석 연구
윤종호(Yoon Jong-Ho),백남춘(Baek Nam-Choon),신우철(Shin U-Cheul) 한국태양에너지학회 2008 한국태양에너지학회 논문집 Vol.28 No.1
Thermal performance of passive solar Trombe wall system which is applied on the south wall of KIER Zero energy Solar House has been monitored for 6 months of heating season. Based upon the long-term measurement results, extensive statistical analysis was conducted to investigate temperature profiles and heat flow pattern in Trombe wall system under actual operating condition. Heat flow characteristics depending on the time variation of day and month was clearly revealed. Heat gain and loss on the inner surface of the Trombe wall was calculated base upon measured temperature data. Those results would be utilized to improve the efficiency of new type solar storage wall system.
창호의 광학적 특성에 따른 ZeSH의 일사취득 및 난방부하에 관한 민감도 분석
손선우(Son Sun-Woo),백남춘(Baek Nam-Choon),서승직(Suh Seung-Jik) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.- No.-
To reduce the building energy consumption, the major advanced nations are conducting actively many researches on so called a "self-sufficient building(or other words zero energy building)" which can support its required energy by itself. Given this background, KIER(Korea Institute of Energy Research) built full size test-bed of the zero energy solar house in early 2002, and has studied on the self-sufficient heating load up to now. We analyse the sensitivity between the heating load and the solar radiation gain according to the change the effective transmittance of windows. The authors classified 9 cases by solar transmittance of glass. The results demonstrate the solar radiation amount is 0.466 MWh from the eastern zone of Fl.,1(the first floor), 0.332 MWh from Fl.,2(the second floor), 1.194 MWh form the southern zone of F1., and 0.822 MWh from the southern zone of Fl.,2 on the case 1(each cases are classified by window types). On the case 9, the solar radiation amount is 3.127 MWh, 2.662 MWh, 8.799 MWh and 6.078 MWh from the same condition. For the Fl.,1, the amount of Heat Load that is saved per year ranged 10.5 to 48 %, and the reduction was anywhere from 0.2 to 17.9% for Fl.,2.
콤팩트형 태양열/지열히트펌프 하이브리드 냉난방 및 급탕 시스템 개발 및 성능분석
백남춘,정선영,윤응상,이경호 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.5
In this study, the compact type solar thermal and ground coupled heat pump hybrid system for space heating/cooling and hot water supply has been developed. This hybrid system was installed in Zero Energy Solar House(ZeSH) in KIER for the demonstration. The thermal performance and operational characteristics of this hybrid system were analysed especially. The results are as follows. (1) This hybrid system was designed in order to address the existing disadvantages of solar thermal/ground coupled heat pump system. For this design, all parts except solar collector and ground coupled heat pump were integrated into a single product in a factory. The compact type unit includes two buffer tanks, an expansion tank, pumps, valves, a controller, etc. This system has an advantage of easy installation with simple plumbing work even in narrow space. (2) The thermal charging and discharging time of the buffer tanks and its characteristics by ground coupled heat pump, and heat pump COP according to geo-source temperature and buffer storage temperature have been studied. This system was found to meet well to the heat load without any other auxiliary heating equipment. (3) The operating hours of the ground coupled heat pump as a backup device of solar thermal can be reduced significantly by using solar heat. It was also found that the minimum heating water supply setting temperature and maximum cooling water supply setting temperature make an influence on the heat pump COP. The lower heating water and the higher cooling water temperature, the higher COP. In this respect, the hybrid system’s performance can be improved in ZeSH than conventional house.
Study on COP Variations with the duration of Ground Source Heat Pump Systems Operation
이용규(Lee, Yonggyu),백남춘(Baek, Namchoon),윤응상(Yoon, Eungsang) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06
In this study, the COP variation with the duration of Ground Source Heat Pump (GSHP) systems operation was analyzed by experiment. This experimental facility was installed in residential house as a back-up device of solar thermal heating system. The capacity of heat pump is 2.5 kW with a vertical bore hole of 150m depth. The COP of GSHP is varied, depending on the ground temperature which is used as a heat source. The ground heat source temperature influencing heating COP is the soil or rock temperature which adjoin with geo-source heat exchanger. This temperature is decreased rapidly according to the operation duration of heat pump. As a result, COP of GSHP is decreased to 3 in one hour of continuous operation time.
A Study on the Energy Self-Sufficiency of KIER Zero Energy Solar House II
정선영(Jeong, Seonyeong),백남춘(Baek, Namchoon),유창균(Yoo, Changkyoon),윤종호(Yoon, Jongho) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06
The purpose of this study is on the thermal performance evaluation of KIER Zero Energy Solar House-II, called ZeSH-II which can be sustained with the support of a very few energy. This ZeSH-II was designed and constructed in the end of 2009 to develop for the goal of 70% self-sufficiency. Several key technologies like as the super insulation, high performance window, wast heat recovery system as well as solar power and thermal system and geo-source heat pump wear used for this ZeSH-II. The monitering of ZeSH-II was conducted for six months from November 2009 to April 2010. The monthly energy consumption was calculated based on the monitering results. As a result, the ZeSH-II shows that the energy self-sufficiency during six months(from oct. to apr.) is about 80% which is higher than that of the target.