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커튼월 스팬드럴용 BIPV창호의 온도 및 열파괴 가능성 연구
윤종호(Yoon Jong-Ho),오명환(Oh Myung-Hwan),신우철(Shin U-Cheol) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.2
This research investigated the characteristics of glazing temperature and possibility of thermal shock of BIPV windows installed in the spandrel area of the curtain-wall system. The reasons for the thermal shock can be divided into two possible cases such as the degradation of the flexural behavior and thermal failure, which are closely related to glazing surface temperature. Surface temperature is greatly affected by solar heat gain coefficient(SHGC) and the composition of the internal finishing materials at the spandrel. Therefore, analysis of the effect on flexural behavior and thermal shock on the basis of glazing surface temperature characteristics is performed depending on the variation of SHGC and composition of finishing materials. Results reveal that low SHGC glazing and appropriated finishing compositions which are wide air space and high reflectance, high U-value are getting lower temperature. For these reasons, it is suggested that applying the BIPV windows and composition of finishing materials optimized by the results above is an effective way to avoid the thermal shock.
이수만(Soo Man Lee),김동윤(Dong Yun Kim),안정혁(Jung Hyuk An),이철성(Cheol Seng Lee),신우철(U Cheul Shin) 대한설비공학회 2019 설비공학 논문집 Vol.31 No.10
In this study, we analyzed the annual heating and cooling energy requirements of reference building with 97 certificated windows using TRNSYS 17, to review the applicability of the “Window Energy Consumption Efficiency Rating System” to the office building. The analyzed model was a medium-size office building with lightweight curtain walls and a window-to-wall ratio of 52%. The results are as follow : First, the annual total thermal load was 60,261 to 111,616 kWh and the ratio of heating load to cooling load was 1:9 showing that cooling was the main factor of the thermal load. Second, the total thermal load by SHGC showing an almost perfect linear relationship. The F-test significance probability in the regression model was 0.000 meaning statistical significance and the coefficient of determination was 0.9656 showing high correlation. In contrast, the F-test significance probability in the regression model by U-value was 0.00484 showing statistical significance but the coefficient of determination was 0.0805 showing low correlation. Third, the SHGC of window was the main factor of the total thermal load in the office building. It showed the limitation of subject in “Window Energy Consumption Efficiency Rating System” which was limited to insulation performance and airtight performance. Thus, in to evaluate the window sets in terms of energy saving, the “Window Energy Consumption Efficiency Rating System” with SHGC should be considered.
고층형 사무소건물의 에너지저감을 위한 효과적인 BIPV 적용방안
윤종호(Yoon Jong-Ho),신우철(Shin U-Cheol),오명환(Oh Myung-Hwan),박재완(Park Jae-Wan) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.8
The major objective was for effective ways to apply solar power systems at high-rised buildings. First, Analysis the building energy consumption to apply rooftop BAPV at high-rised office building. As a result, reduction rate of building energy was gradually redused by high-rise will be upset. To improve these disadvantages, apply 5 kinds of BIPV alternatives instead of window or finish materials at high-rised office building. A primarily, applied BIPV system can reduce the heating and cooling loads. secondly, It can reduce building energy consumption to generate the electricity. In addition, reduction rate of building energy was constant by high-rise will be upset. A mixture of two kinds of systems(BIPV and BAPV) installed share with each other to produce power results, BIPV system was effective in certain stories. Therefore, If low-rised scale of office building installed the solar power system you sould apply the BAPV system, it can be relatively effective, but high-rise office buildings in order to reduce the energy applied BIPV system is surely needed.
김완영(Kim, Wan-Young),태춘섭(Tae, Choon-Seob),신우철(Shin, U-Cheol),유창균(Yu, Chang-Kyun) 한국태양에너지학회 2015 한국태양에너지학회 논문집 Vol.35 No.6
The G-SEED encourages the installation of new and renewable energy facilities through assessments of the new and renewable energy installation rates. The government also regulates the installation rate of new and renewable energy facilities in the ‘Project on new and renewable energy obligation in public installations’. The current criteria concerning the new and renewable energy facilities in the G-SEED are the result of an amendment made in July 2010. As over five years have passed since this amendment, the assessment criteria needs to be reenforced. To improve the current criteria, the calculation results of the installation rate of new and renewable energy facilities in the G-SEED were analyzed and compared to the corresponding calculation results of the ‘Project on new and renewable energy obligation in public installations’. And an improved draft for the assessment criteria of the new and renewable energy facilities in the G-SEED was proposed.
재실자의 시쾌적과 건물에너지성능을 고려한 슬랫형 블라인드 자동제어전략
오명환(Oh, Myung-Hwan),윤종호(Yoon, Jong-Ho),신우철(Shin, U-Cheol) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11
Glass Envelope is vulnerable to insulation performance and controling solar radiation. Insulation performance is consistently improving these days due to recent building energy saving policy in South Korea. However, solar control at glass envelope is still limited to meeting requirements of ideal high performance. Generally, Inside Blind plays an important role of solar controlinstead of glass which have a characteristics of transmitted solar.Unfortunately, most of them are controled by occupants and which method is not resonable in building energy. Therefore, achieving the high efficient performance building, automated control blind system considering reduction of building loads have to be adopted. Furthermore, considering occupants visual comport about removing discomfort glare is also essential.