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이중창호의 하절기 냉방부하 저감 가능성에 대한 기초적 연구
정창헌(Cheong Chang-Heon),황석호(Hwang Suck-Ho),김태연(Kim Tae-Yeon),이승복(Leigh Seung-Bok) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.2
A Double window system has merits such as reducing heating and cooling energy in residential building. In this paper, potential of cooling energy reduction of the double window system was investigated by mock-up test. Cooling load in each test cell was calculated based on indoor air temperature. Cooling load reduction potential by comfort ventilation was estimated by analyzing outdoor temperature pattern. The results of the study are as follow. a. A Double window system without shading system reduces indoor temperature about 3℃ b. A Double window system with shading device can reduce cooling load by 32% c. Indoor temperature increase in a double window testing cell during night time lessens the cooling load reduction effect. d. Outdoor temperature during night time is sufficiently low to perform comfort ventilation e. Cooling load reduction potential of a double window system is estimated about 61% comparing to a single window system.
안상민(An Sang-MIn),황석호(Hwang Suck-Ho),김태연(Kim Taeyeon),이승복(Leigh Seung-Bok) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.4
Thermal storage plays an important role in building energy saving, which is greatly assisted by the incorporation of latent heat storage in building materials. A phase change material is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, can be storing and releasing large amount of energy. Heat is stored or released when the material changes from solid to liquid. Integration of building materials incorporating PCMs into the building envelope can result in increased efficiency of the built environment. The aim of this research is to identify thermal performance of PCMs impregnated building materials which is applied to interior of building such as gypsum and red clay. In order to analyze thermal performance of phase change materials, test-cell experiments and simulation analysis were carried out. The results show that micro-encapsulated PCM has an effect to maintain a constant indoor temperature using latent heat through the test-cell experiments. PCM wallboard makes it possible to reduce the fluctuation of room temperature and heating and cooling load by using EnergyPlus simulation program. Phase change material can store solar energy directly in buildings. Increasing the heat capacity of a building is capable of improving human comfort by decreasing the frequency of indoor air temperature swings so that the interior air temperature is closer to the desired temperature for a long period of time.
박정우(Park Jung-Woo),배상환(Bae Sang-Hwan),황석호(Hwang Suck-Ho),김태연(Kim Taeyeon),이승복(Leigh Seung-Bok) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3
The objective of this study is to analysis generation performance of BIPV system applied to Sustainable Residential Building in Yonsei university in Song-do Campus according to application methods. Applied BIPV modules are installed on exterior wall, roof, pergola. During measurement period which is from september 2010 to february 2011, the maximum generated power of the BIPV modules applied to exterior wall showed highest in january 2011. In roof and pergola case, the maximum generated power showed highest in september 2010. Consequently, generated power of BIPV system according to application methods is considered to be affected by installation angle and azimuth angle. In the future, generation performance based on the relationship between PV modules temperature and installation method of BIPV plans to be analyzed.
공동주택에서 에너지 파일을 이용한 지열히트펌프 시스템의 난방 성능 분석
이진욱(Lee Jin-Uk),배상환(Bae Sang-Hwan),황석호(Hwang Suck-Ho),김태연(Kim Taeyeon),이승복(Leigh Seung-Bok) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3
In Korea, Apartment houses recently occupy over 80% of all buildings. Ground source system has to be designed to consider feature of apartment house. Most apartment houses use PHC pile to get a bearing power of the soil. Therefore, Ute purpose of this study is to evaluate performance of ground source heat pump heating system utilizing energy pile under apartment. Object of experiment was low-energy experiment apartment in Song-do and ground heat source were applied to 80%, 100% energy reduction model. Before heating experiment, thermal response test was performed. As a result, ground temperature was 16.7℃ and thermal conductivity(K) was 5.53W/m · ℃. During heating experiment, Indoor room set temperature was 20℃ and kept constant by heating. Coefficient of performance for heat pump and overall system was calculated. It was 3.5~4.5 for COP and 2.5~3.7 for system COP