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백상훈(sang-hun Peak),이진성(Jin-Sung Lee),조수(soo Cho),장철용(Cheol-Yong Jang),성욱주(Uk-Joo Sung),서승직(Seung-Jik Suh) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.6
Heat loss by window in building occupies about 1/4 of energy amount used building. Therefore, high thermal insulation of windows system can speak as very important part in save energy of building. in this research, After select most suitable frame design and Glazing system for high thermal insulation of windows, execute simulation of mixing frame and Glazing System. Also, manufacture windows with the result and execute verification experiment, with verified simulation, this research evaluated thermal insulation performance of window by Glazing System's change.
민성혜(Sung-Hye Min),서승직(Seung-Jik Suh) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.6
Perimeter zone has been reinforced by active systems, such as fan-coil units, because it causes an increase in heating and cooling loads, dew condensation in winter, or discomfort with cold-draft to residents in buildings, through poor insulation by light-weighed skin due to progressing multi-storied buildings and skyscrapers. However, because these active systems raise its capacity so that fossil fuel is used as much as they are added, and ultimately, greenhouse effect is urged, we proposed BIPV system functioned as solar collector which can substitute active system. As an early stage, heat balance equation in steady-state by Fortran was used not only for pre-heating effect and electric power capacity during the day in winter, but also for electric power capacity during day in summer and sky radiation effect during night in summer. Especially, we should have considered shading on PV, since even a little bit of it makes the efficiency too low for the PV to work. Still, when the flux of pre-heated air was increased to make air-barrier, its temperature was not enough to make it because the speed of heat exchange was too fast to warm up the air, thus the capacity to meet the condition was evaluated, and electric power from PV was made used for it.
백상훈(Baek Sang-Hun),최원기(Choi Won-Ki),서승직(Suh Seung-Jik) 한국태양에너지학회 2009 한국태양에너지학회 논문집 Vol.29 No.3
The majority of fixed shading devices are installed in the exterior of a building in order to dissipate the heat absorbing from the sun and to prevent the direct sunlight. In designing external shading devices for windows, many requirements must be considered simultaneously ; solar geometry, optimum energy performance, multi-purpose usage and design factors etc.. In order to satisfy these requirements, we suggests the folding shading device and its optimum design methodology. Also we analyzed the thermal performance using the IES-VE program according to various operating modes and compared with existing shading devices. The results show that proposed device reduce about 1.90~22.40% in cooling load and about 1.09-24.22% in heating load in comparison with existing ones.
태양열 집열기 기능의 BIPV시스템을 이용한 외주부 환경 개선에 관한 연구
민성혜(MIn Sung-hye),서승직(Suh Seung-jik) 한국태양에너지학회 2006 한국태양에너지학회 학술대회논문집 Vol.- No.-
These days, there are a growing number of people who expand their living room or bed room by putting together balcony, which is a permissible area for buffer zone, to have more space and better visible effect. Moreover, more light-weighed building's skins are installed, weaker perimeter zone makes more significant heating/cooling loads. It is largely because indoor environment where we live is exposed more and more to outdoor one. Therefore, it makes us feel uncomfortable by cold-draft and use much more fossil fuel to keep an ideal environment. In this study, We evaluated pre-heating effect and electric power of the system We had proposed before according to each mode, such as summer or winter, and day or night. Especially, it was focused on the optimal angle in summer day time mode to gain maximum PV's electric output by IES-VE Suncast and Fortran - 70 degrees (based on solar intensity in 2004). During programming, it was found out that last model had too much shading to be effective and then it was revised. It should be considered not only solar altitude but also its azimuth to avoid shading which makes PV modules inefficient.
백상훈(Peak Sang-Hoon),이강영(Lee Kang-Young),손선우(Son Sun-Woo),서승직(Suh Seung-Jik) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
The majority of fixed shading devices are installed in the exterior of a building in order to dissipate the heat that they absorb from the sun to the outside air and to prevent the direct sunlight. In designing external shading devices for windows, there are many requirements that must be considered simultaneously ; solar geometry, optimum energy performance, multi-purpose usage and design factors etc.. In order to satisfy these requirements, we suggested the folding shading devices and its optimum design methodology. Also we analyzed the thermal performance using the IES_VE program according to the various operating modes and compared with the existing shading devices. The results are that this device could save about 1.90~22.40% in cooling load and about 1.09~24.22% in heating load in comparison with the existing ones.
백상훈(Paek sang-hun),조수(Cho soo),장철용(Jang Cheol-Yong),이진성(Lee Jin-Sung),성욱주(Sung Uk-Joo),박상우(Park Sang-Woo),서승직(Suh Seung-Jik) 한국태양에너지학회 2006 한국태양에너지학회 학술대회논문집 Vol.- No.-
Research about most suitable design of superhigh adiabatic super windowsHeat losses by windows and doors, acquisitions are dominating large percentage whole building loads. development of high adiabatic windows and doors system is one of important part on save energy dimension. Be ing comparing to result existent windows and doors system that analyze this research and show overall heat transmission rate decreases more than about 50%. Producing sample ore hereafter with result of this research an actual proof experiment by measuring the mortification overall heat transmission rates. If continuous research is achieved in skill application side commercialization, large quantity production, Low-Cost it is expected to contribute greatly in saveenergy of building.