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유형규(Yu Hyung-Kyu),배상환(Bae Sang-Hwan) 한국지열·수열에너지학회 2010 한국지열에너지학회논문집 Vol.6 No.1
The objective of this study is to develope ground heat exchanger using PHC pile used to building foundation, and it's element technology. So we made PHC piles into ground heat exchanger and evaluate it's performance. First, we studied PHC pile type, heat exchanger pipe, grouting materials, and present apartment house's foundation condition for PHC ground heat exchanger. As a result we designed BIGS (Building Integrated Geothermal System) prototype. Second, we applied BIGS to apartment houses' utility building in Osan built by Daelim. Third, we monitored heating performance of winter season. The result of heating performance was so good to apply to heat & cooling system in building.
유형규(Hyung-Ku Yu),이병석(Byung-Seok Lee) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
The objective of this study is to develop and evaluate ground heat exchanger using building foundation. So we changed PHC piles into ground heat exchanger and evaluate it's heating and cooling performance. First, we studied building foundation system, heat exchanger pipe, grouting materials. As a result we designed BIGS(Building Integrated Geothermal System) prototype. Second, we applied BIGS to apartment houses' utility building in Osan Sema built and Greenhome Plus energy saving 80% test bed in Song-Do. Third, we monitored heating performance of winter season in Osan and cooling performance of summer season in Song-Do.
PHC 파일 기초를 이용한 지중 열교환기 개발 및 성능 평가
유형규(Yu Hyung-Kyu) 한국태양에너지학회 2008 한국태양에너지학회 논문집 Vol.28 No.5
The objective of this study is to develope ground heat exchanger using PHC file used to building foundation, and it's element technology. So we construct PHC ground heat exchanger in the apartment house's PHC foundation and evaluate it's performance, First, we study PHC file type, heat exchanger pipe, grouting materials, and present apartment house's foundation condition for PHC ground heat exchanger and design it's proto type. Second according to grouting materials, we estimate construction convenience, and it's performance. Construction convenience side, PB 22 A pipe and sand grouting with moisture was good for PHC ground heat exchanger elements. Experiment result is very superior. Thermal conductivity B, C type(sand, gravel) was respectively 32.4 W/m℃, 36.5 W/m℃, D(concrete) Type 27.8 W/m℃, E(bentonite) Type 19.6 W/m℃. Thermal interference for 4 day experiment period in 3.8 m was very small. So PHC file is good for using ground heat exchanger.
공동주택에서의 포름알데히드 및 휘발성유기화합물 측정연구
박진철(Park. Jin-Chul),유형규(Yu. Hyung-Ku),박진철(Park. Jin-Chul),이언구(Rhee. Eon-Ku) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The purpose of this study is to investigate emission characteristics of pollutant sources and to improve the Indoor Air Quality (IAQ) in apartment houses. The field measurement was conducted in four different apartment house complexes located in Seoul. The result of the measurement shows that indoor concentrations of HCHO and VOC's are much higher than the foreign standards. The result of the study indicates that the basic thermal environment elements such as temperture, measurement position, lapse have a valid effect on the concentration of pollutant sources.
송국섭(Gook-Sup Song),유형규(Hyung-Kyu Yu),정병훈(Byong-Hoon Jeong) 한국생활환경학회 2001 한국생활환경학회지 Vol.8 No.1
Although high-rise apartments are beneficial to increase land use, open space, fine view, and so forth, it induces people to concentrate in cities and causes traffic problem. And, the lower stories of those apartments are difficult to obtain sunlight for minimum 4 hours in the daytime while the upper stories of them can receive sufficient sunlight regardless of seasons or times. The purpose of this study was to present the method which can be used for evaluating sunlight conditions in design and using phase of apartments by surveying individual houses. In this study, it is produced the shadow analysis program with Auto Lisp that can plot shadows on a CAD drawing by calculating solar altitude, azimuth, declination and equation of time. To examine the seasonal effect of shadow, three-dimensional building shape and shadow were illustrated using the rendering method. Because this shadow analysis program with Auto Lisp can show directly building shadows on a drawing, it is useful to perceive the accurate pattern and area of shadow. And, the Auto CAD rendering method can express seasonal changes of shadow in apartment complex. Therefore, by using two methods properly, it is helpful to predict precise time of sunlight and shadow in design and using phase of buildings.