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통계적 분석을 통한 공동주택 벽-슬라브 접합부 열교부위의 선형 열관류율 예측에 관한 연구
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),임재한(Lim Jae-Han) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3
In Korean apartment buildings, internal insulation system is usually applied, so necessarily the layer of insulation is disconnected due to structural component at wall-slab and wall-wall junctions in envelope. Liner thermal transmittance is required for energy performance evaluation including the effect of these thermal bridges. As it is calculated by a person with suitable expertise and experience with 2-D heat transfer simulation, it would be more easy and useful for non-specialists to calculate linear thermal transmittance through regression model. In this study, the regression model for linear thermal transmittance of wall-slab junction with internal insulation is suggested. which showed a good match with that from 2-D heat transfer simulation.
한국과 영국의 주거용 건물 에너지효율등급인증제도 운영 및 평가 방식과 에너지소요량 산출방법 비교 분석
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),이병인(Lee Beung-In) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.5
Many countries are making nationwide efforts to reduce the energy consumption which causes greenhouse gas emissions and global warming problems. Buildings are responsible for over 24% of the energy consumption in Korea, and 68% of the total energy consumption in the building sector comes from residential use. Various systems such as Energy-efficient Building Design Standard, Green Building Certification System, etc. have been in force to reduce the energy consumption of residential buildings, and Building Energy Efficiency Rating System is one of them. Korean Building Energy Efficiency Rating System is in its early stage and leaves room for additional improvement for the effective operation and accurate assessment. In this study, the Building Energy Efficiency Rating System of Korea and the SAP2005 of the UK were compared and actual residential building's energy consumption was assessed by each system. As results, the merits and shortcomings of two systems were analyzed and a number of ways of improving Korean system were suggested.
써멀 레비린스 환기시스템의 연간 에너지성능 및 경제성 분석
송승영(Song Seung-Yeong),송진희(Song Jin-Hee),임재한(Lim Jae-Han) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.4
Ventilation is essential to maintain a healthy indoor environment. However, in summer and winter, thermal conditions of outdoor air are so poor that ventilation cannot but increase energy consumption. Thus, energy-efficient ventilation system is very important to reduce energy consumption. Thermal labyrinth system is a ventilation system which intakes outdoor air through an underground concrete structure shaped like a labyrinth. By the heat exchange with ground, this system can pre-cool and pre-heat the outdoor air in summer and winter, respectively. The aim of this study is to analyze the energy performance and economical efficiency of thermal labyrinth system, applied to the E University building recently built in Seoul. As results, outdoor air cooling+dehumidification and heating+humidification peak loads were found to be reduced by 47.6% and 41.2%, respectively. Annual outdoor air conditioning energy demand was found to be reduced by 31.3% and payback period was found to be 14.2years.
내, 외단열 공동주택에서 단열재 및 축열재 위치 차이가 에너지성능에 미치는 영향
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),이병인(Lee Beung-In) 한국건축친환경설비학회 2010 한국건축친환경설비학회 학술발표대회 논문집 Vol.2010 No.3
The IIS(Internal Insulation System) is applied in most Korean apartment buildings which are the most common type of residential buildings. Consequently, there are many cases in which the layer of insulation is disconnected by the structural components at the wall-slab and wall-wall joints in the envelope. These joints become thermal bridges where the risk of heat loss increases. It is expected that the EIFS(External Insulation and Finish System) is the solution to this problem. In this study, annual heating and cooling loads of apartment buildings with IIS and EIFS were compared using DesignBuilder program in order to evaluate the thermal storage effect of EIFS where the concrete thermal mass is located inside of the insulation material. As results, the apartment building with EIFS could reduce annual heating and cooling loads by 2.4% and 4.1%, respectively.
제로에너지 공동주택을 위한 주요 설계변수별 비용효율 분석
송승영(Song Seung-Yeong),이수진(Lee Soo-Jin),허갑수(Hur Kab-Soo),진현호(Jin Hyun-Ho) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.8
The purpose of this study is to analyze the cost efficiency of design elements for an zero energy apartment building, which is the most common type of residential building in Korea. First, the baseline model was set up, based on the actual apartment complex. Design elements and their alternatives were established, based on the zero energy house study. After calculating energy consumption, energy cost, and construction cost of every alternative, three cost efficiency indexes of construction cost per energy saving rate, payback period, and life cycle cost were presented, and the cost efficiency of every alternative was analyzed.
구체형 지열활용 환기시스템의 동계 및 춘계 에너지 효율 분석
송승영(Song Seung-Yeong),송진희(Song Jin-Hee),임재한(Lim Jae-Han) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.8
Ventilation is essential to maintain a healthy indoor environment. However, in winter and summer, thermal conditions of outdoor air are so poor that ventilation cannot but increase energy consumption. Thus, energy-efficient ventilation system is very important. Thermal labyrinth system is a ventilation system which intakes outdoor air through an underground concrete structure shaped like a labyrinth. By the heat exchange with ground, this system can preheat and precool the outdoor air in winter and summer, respectively. The aim of this study is to analyze the energy efficiency of thermal labyrinth system, applied to the Ewha University building recently built in Seoul, in winter and spring (from Dec. 1 to May 31). As results, it was found that average heating and humidifying effects in Jan. are 13.3℃ and 0.3gw/㎏da (41.96㎾ and 2.58㎾), respectively, and average cooling and dehumidifying effects of thermal labyrinth system in May are 3.2℃ and 0.7gw/㎏da (22.97㎾ and 10.63㎾), respectively. Total outdoor air sensible and latent, heating and cooling load was found to be reduced by 29.0% through the thermal labyrinth system in winter and by 25.8% in spring.