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화나현,김익현,도근영 대한건축학회지회연합회 2015 대한건축학회연합논문집 Vol.17 No.2
오늘날, 해양건축물의 수요 증가로 인해 연안환경의 중요성이 대두되고 있다. 본 연구에서는 이러한 해양이라는 특수한 환경에서 고려해야 할 요소들 중, 부하에 영향을 주는 해수면 반사 일사에 대하여 분석하였다. 일반적인 건축물은 하절기에 일사를 피하고, 동절기에는 일사량을 얻는 시스템을 구축하고 있다. 하절기의 일사차폐는 기본적으로 천공에서 비치는 하향 일사에 대한 것으로 지면반사와 같이 상대적으로 양이 작은 상향의 일사에 대한 대비는 없는 실정이다. 그러나 전면에 반사율이 높은 해수면과 같은 넓은 반사면이 있는 해양건축물의 경우는 해수면 반사 일사의 영향을 무시할 수 없을 것이라 판단된다. 이에 본 연구에서는 태양고도에 따른 해수면 반사 일사량의 변화를 실험을 통해 도출하였다. 정밀한 수면 반사 평가가 이뤄질 수 있다면, 내륙과 해안에 위치한 건축물의 냉방 부하 설정의 새로운 지표를 설정할 수 있다. Today, gradually the demands of oceanic constructure have been increasing. In this study, it analyzes the reflected solar radiation from the ocean which influences the load among many factor considered for the sea which has a special environment. General buildings located on the land and the waterfront have constructed a system that is avoiding solar radiation in summer and getting solar radiation in winter. Solar shading is about solar radiation from the sky in summer. It have not been that less solar radiation from bottom than solar radiation from the sky prepare shading. Normally, reflected solar radiation from the inland is a little compared with global solar radiation. In other way, reflected solar radiation from the ocean is much compared with reflected solar radiation from the inland. So it judged that this tendency will not ignore. In this study, it have been deduced that reflected solar radiation change from the ocean by the sun’s altitude in an survey experiment. If it is correct, will establish a index about cooling load on ocean structure.
외부 수평차양 및 수직차양의 돌출비에 따른 하절기 수직창면의 직달일사량 및 전일사량 분석
송수원(Song, Suwon),조동우(Cho, Dong-Woo) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.4
It has recently been concerned about cooling loads due to solar radiation through windows for commercial buildings. External shadings can be used to effectively reduce the direct and global solar radiation on windows. This paper analyzed the direct and global solar radiation facing on a vertical window according to the projection factors(PF) of external horizontal and vertical shadings in its orientation for a clear day in Summer and then proposed Solar Heat Gain Coefficient(SHGC) multipliers for such external horizontal and vertical shadings.
국내 태양열발전시스템 설치를 위한 법선면 직달일사량 분석
조덕기(Jo, Dok-Ki),강용혁(Kang, Yong-Heack) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
Since the direct normal insolation is a main factor for designing any solar thermal power system, it is necessary to evaluate its characteristics all over the country. We have begun collecting direct normal insolation data since December 1990 at 16 different locations and considerable effort has been made for constructing a standard value from measured data at each station. KIER(Korea Institute of Energy Research's new data will be extensively used by solar thermal concentrating system users or designers as well as by research institutes. From the results, we can conclude that 1) Yearly mean 5.41kWh/m²/day of the direct normal insolation was evaluated for clear day all over 16 areas in Korea. 2) Clear day's direct normal insolation of spring and summer were 5.54kWh/m²/day and 5.86kWh/m²/day, and for fall and winter their values were 5.32kWh/m²/day and 4.92kWh/m²/day respectively. So, spring and summer were higher, and fall and winter were lower than the yearly mean value.
조덕기(Jo Dok-Ki),윤창열(Yun Chang-Yeol),김광득(Kim Kwang-Deuk),강용혁(Kang Young-Heack) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
Since the direct normal radiation and clear day are a main factor for designing any solar thermal and photovoltaic concentrating system, it is necessary to evaluate its characteristics all over the country. The work presented here are the investigation of direct normal radiation and clear day in Korea. The data utilized in the investigation consist of direct normal radiation collected for 14 years('90. 12~2004. 12) and clear-day collected for 23 years(1982~2004) at measuring stations across the country. The analysis shows that the annual-average daily direct normal radiation is 5.4 kWh/m2 and the annual-average total clear-day is 92.7 days in Korea. We also constructed the contour map of direct normal radiation and clear-day in Korea by interpolating actually measured data across the country.
조덕기(Jo Dok-Ki),강용혁(Kang Young-Heack) 한국태양에너지학회 2008 한국태양에너지학회 논문집 Vol.28 No.1
Since the direct normal insolation is a main factor for designing any solar thermal power system, it is necessary to evaluate its characteristics all over the country. We have begun collecting direct normal insolation data since December 1992 at 16 different locations and considerable effort has been made for constructing a standard value from measured data at each station. KIER(Korea Institute of Energy Research)'s new data will be extensively used by solar thermal concentrating system users or designers as well as by research institutes. From the results, we can conclude that 1) Yearly mean 2.67 ㎾h/㎡/day of the direct normal insolation was evaluated for all days all over the 16 areas in Korea. 2) All day's direct normal insolation of spring and summer were 2.91 ㎾h/㎡/day and 2.23 ㎾h/㎡/day, and for fall and winter their values were 2.78 ㎾h/㎡/day and 2.77 ㎾h/㎡/day respectively. So, spring, fall and winter were higher, and summer was lower than the yearly mean value.
국내 고집광 태양에너지 이용시스템 설치를 위한 법선면 직달일사량과 청명일 정밀조사
조덕기(Jo Dok-Ki),강용혁(Kang Young-Heack) 한국태양에너지학회 2006 한국태양에너지학회 논문집 Vol.26 No.3
Since the direct normal radiation and clear day are a main factor for designing any solar thermal and photovoltaic concentrating system, it is necessary to evaluate its characteristics all over the country. The work presented here are the investigation of direct normal radiation and clear day in Korea. The data utilized in the investigation consist of direct normal radiation collected for 14 years(’90. 12~2004. 12) and clear-day collected for 23 years(1982~2004) at measuring stations across the country. The analysis shows that the annual-average daily direct normal radiation is 5.4 kWh/m2 and the annual-average total clear-day is 92.7 days in Korea. We also constructed the contour map of direct normal radiation and clear-day in Korea by interpolating actually measured data across the country.
국내 고집광 태양에너지 발전단지 건설을 위한 법선면 직달일사량 자원조사
조덕기(Jo Dok-Ki),강용혁(Kang Young-Heack) 한국태양에너지학회 2008 한국태양에너지학회 학술대회논문집 Vol.- No.-
Since the direct normal insolation is a main factor for designing any solar thermal power system, it is necessary to evaluate its characteristics all over the country. We have begun collecting direct normal insolation data since December 1992 at 16 different locations and considerable effort has been made for constructing a standard value from measured data at each station. KIER(Korea Institute of Energy Research)'s new data will be extensively used by solar thermal concentrating system users or designers as well as by research institutes. From the results, we can conclude that 1) Yearly mean 2.67 ㎾h/㎡/day of the direct normal insolation was evaluated for all days all over the 16 areas in Korea. 2) All day's direct normal insolation of spring and summer were 2.91 ㎾h/㎡/day and 2.23 ㎾h/㎡/day, and for fall and winter their values were 2.78 ㎾h/㎡/day and 2.77 kWh/㎡/day respectively. So, spring, fall and winter were higher, and summer was lower than the yearly mean value.