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냉 · 난방 및 조명에너지를 통합 고려한 DSSC BIPV창호의 사무소건물 적용 효과 연구
심세라(Sim Se-Ra),윤종호(Yoon Jong-Ho),신우철(Shin U-Cheul) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3
The aim of this study is to evaluate how much would the building energy consumption be saved by applying DSSC BIPV window which is possible to control the transmittance and express the color in the office building. For this, physical characteristics such as transmittance and reflectance, U-factor of DSSC are analyzed and an annual energy consumption that is connected to dimming control is calculated when DSSC BIPV window is applied by alternate clear window system. As a result, It is possible to reduce the an annual energy consumption as much as 4.1% by just change the clear double window system to DSSC BIPV double window system because the major factor to reduce energy consumption in the office that has much cooling load than other building is SHGC. When the thermal insulation properties of DSSC BIPV window with low-e coating and making triple window are improved, energy saving ratio is about 9%. Plus, energy saving ratio of 25~28% in lighting energy consumption is possible when the dimming control system with DSSC BIPV window is adopt.
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.
신우철(Shin U-Cheul),백남춘(Baek Nam-Choon),김욱중(Kim Ook-Joong),고득용(Koh Deuk-Yong) 한국태양에너지학회 2006 한국태양에너지학회 논문집 Vol.26 No.2
The purpose of this study is to present the simulation results and an overview of the performance assessment of the Ground-Source Heat Pump(GSHP) system. The calculation was performed for two design factors: the spacing between boreholes and the depth of the vertical ground heat exchangers. And the simulation was carried out using the thermal simulation code TRNSYS with new model of water to water heat pump developed by this study. As a result, it was anticipated that the yearly mean COPs of heat pump for heating and cooling are about 3.7 and 5.8 respectively and the heat pump can supply 100% of heating and cooling load all the year around.
열교부위를 고려한 커튼월 사무소 건물의 열성능 해석에 관한 연구
신우철(Shin U-Cheul),김승철(Kim Seung-Chul),윤종호(Yoon Jong-Ho) 한국태양에너지학회 2011 한국태양에너지학회 논문집 Vol.31 No.3
Currently, office buildings in Korea tend to adopt as their outer wall the curtain wall structure which can be easily constructed and has beautiful external appearance as well. However, the problem is that the curtain wall structure does not have a uniform composition unlike the wall of existing reinforced concrete structures and has a frame made of metal with high heat conduction. Therefore, it is expected that the structure will be highly influenced by the thermal bridge. Thereupon, this study analyzes how to set up the composition of the wall system and heat transmission rate in consideration of the thermal characteristics of the curtain wall structure and applies it in practice by simulation in order to propose a guideline for the energy simulation method of the curtain wall structure and analyze its differences from existing simulation methods.