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회수기간을 고려한 기존건축물의 외피 및 열원설비 리모델링 최적 설계안 선정에 관한 연구
윤경(Yun, Gyeong),박두용(Park, Doo-Yong),윤갑천(Yoon, Kap-Chun),김영민(Kim, Young-Min),김영섭(Kim, Young-Sup),김강수(Kim, Kang-Soo) 한국건축친환경설비학회 2016 한국건축친환경설비학회 논문집 Vol.10 No.2
In this study, we proposed remodeling alternatives with building envelope and plant systems which impact on heating and cooling energy consumption in existing building. We performed cost analysis of the alternatives, and presented the remodeling guideline of existing buildings based on these analyzed data. The maximum energy-saving rate was up to 47.4% using commercially available windows, insulations, heating and cooling plants, and, the payback period is 49.3 year. So, it can be said that it is not an economical way to achieve more than 50% of energy saving rate with change of building envelope system and plant system. Replacement of plant system is more efficient way to reduce energy consumption and cost addition compared with replacement of building envelope systems. Therefore, we should consider the plant systems primarily, and the building envelope systems secondarily in remodeling of the existing building.
실내 빛환경 평가기준을 통한 사무공간의 채광성능 평가에 관한 연구 : 수평차양을 중심으로
윤경(Yun Gyeong),조성행(Cho Sung-Haeng),김강수(Kim Kang-Soo) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3
We set up daylighting performance criteria with uniformity ratio, daylight factor and glare index in an office space. The criteria are 2% of average daylight factor, 0.4% of uniformity ratio or 0.8% of minimum daylight factor by BREEAM standards(overcast sky) and 22 of DGI and 0.42 of DGP as glare index(clear sky). DGP is more suitable than DGI to be used as a glare index because DGP is more objective than DGI. According to the simulated results by Radiance program, we can obtain more comfortable visual environment(no glare) with more than 120㎝ of overhang in the southern side.
Radiance 프로그램을 이용한 주거공간의 빛 환경 평가에 관한 연구
윤경(Yun Gyeong),조동우(Cho Dong-Woo),김강수(Kim Kang-Soo) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.2
The purpose of this study is to evaluate the performance of visual environment for the installation of venetian blinds in residential space. RADIANCE program and various indicators are used to evaluate. Daylight factor and uniformity ratio derived from the BREEAM 2008 Multi-Residential tool are used to evaluate the indoor visual environment. Daylight glare was evaluated using the DGI and the DGP obtained from RADIANCE based evaluation tool “evalglare". Direct sunlight entering the room caused high daylight factor, low uniformity ratio and serious glare if there are no blinds. Venetian blinds of slat angle 0° are installed to control the direct sunlight and have less daylight, high uniformity ratio and suppress the glare. As a result, the case of installed venetian blinds at slat angle 0° has better indoor visual environment quality. And we have to control the blind slat angle to accept the reflective light to enhance the daylight factor.
Modified Split Flux를 이용한 주광률 계산식 적용에 관한 연구
윤수인(Yun Su-In),윤경(Yun Gyeong),김강수(Kim Kang-Soo) 한국태양에너지학회 2014 한국태양에너지학회 논문집 Vol.34 No.6
Daylighting has a great effect on people inside the room. It is also closely related to the lighting energy consumption. Daylight factor(DF) is a very important index for evaluation of the daylighting in overcast sky. The objective of this study is to verify the suitability of the Tregenza"s Modified Split Flux formula for the calculation of the daylight factor. We compared the daylight factors calculated by two methods; one by a measurement with 1/5 scale model and the other by the Daysim program. We used variables for verification as window wall ratios(WWR) and angles of the sky visible. As a result, daylight factor calculated by Modified Split Flux is similar to the measurement when more daylight enters the inside. And error is significantly increased when the angle of the sky visible is 50°.
사무공간의 수평차양과 차폐계수 변화에 따른 방위별 부하 절감 방안에 관한 연구
김동균(Kim Dong-Kyun),윤경(Yun Gyeong),윤갑천(Yoon Kap-Chun),김성식(Kim Sung-Sik),김강수(Kim Kang-Soo) 한국건축친환경설비학회 2010 한국건축친환경설비학회 논문집 Vol.4 No.3
The purpose of this paper is to suggest the possibility of coolingㆍheating load reduction in office space when changing overhang length and shading coefficient. A tendency of coolingㆍheating load is different at all compass bearings by reason of a change of transmitted solar radiation. Therefore, an azimuthal plan of a building is an important factor for coolingㆍheating load reduction. Among the design factors of a building skin, overhangs and shading coefficient have influence on transmitted solar radiation and coolingㆍheating load. For this study, e-Quest which is developed by Department of Energy in U.S.A performed a simulation for the building's cooling' heating load. In light of the result, Coolingㆍheating load is decreased when changing overhang length and shading coefficient. But a quantity of colingㆍheating load reduction appears different from each azimuth angle.