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열교부위의 손실열량이 공동주택 동단위 난방부하에 미치는 영향 분석
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),이병인(Lee Beung-In) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(계획계)
The IIS(Internal Insulation System) is typically 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 load of apartment buildings with IIS and EIFS were compared using Passive House Planning Package(PHPP). Heat losses through thermal bridges are included for the apartment building's annual heating load calculation by the linear thermal transmittances. As results, apartment building with EIFS showed the 8.4% less annual heating load.
내, 외단열 시스템 적용시 공동주택 후면 외벽-슬라브 접합부의 에너지성능 비교평가
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),최보혜(Choi Bo-Hye) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(계획계)
IIS (Internal Insulation System) is typically applied to most Korean apartment buildings, so there are many cases in which the layer of insulation is disconnected by structural components at the joints of wall-slab and wall-wall in envelope. These joints become thermal bridges. In this study, annual heat losses and gains through the rear wall-slab joint of apartment building in both cases of applying IIS and EIS(External Insulation System) were calculated by three-dimensional annual transient heat transfer simulation. From the results, it was found that the application of EIS could reduce the amount of insulation by 35.6%. Annual heat loss and gain in the case where hot water supply for heating was not modeled, in other words, heating and cooling loads were reduced by 12.2% and 11.3%, respectively. In the case where hot water supply for heating was modeled, it was found that the application of EIS could reduce annual heat loss by 7.1% and increase annual heat gain by 7.3%.
에너지절약형 공동주택을 위한 주요 설계변수별 비용효율 분석
송승영(Song Seung-Yeong),이수진(Lee Soo-Jin) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(계획계)
This study aims to analyze the cost efficiency of each design element related to energy efficiency of the apartment complex which is the most common type of residential building in Korea. First of all, a baseline model was set up, based on the actual apartment complex. And alternatives for selected items among all the assessment items in the Building Energy Efficiency Rating System were set up. The differences of both construction and energy cost between each alternative and the baseline model were estimated through the actual price data and the assessment method of the System. As a result, life cycle cost, net present value, internal rate of return and payback period of each alternative and the orders of priority were presented.
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 하계 및 추계 에너지 효율 분석
송승영(Song Seung-Yeong),송진희(Song Jin-Hee),임재한(Lim Jae-Han) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.3
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. 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 precool and preheat the outdoor air in summer and winter, respectively. The aim of this study is to analyze the energy efficiency of thermal labyrinth system, applied to the E University building recently built in Seoul, in summer and autumn (from Aug. 1 to Nov. 30). As results, it was found that average cooling and dehumidifying effects of thermal labyrinth system in Aug. are 3.7℃ and 3.1gw/kgda (9.92㎾ and 18.51㎾), respectively, and average heating and humidifying effects in Nov. are 8.7℃ and 0.7gw/kgda (19.50㎾ and 3.89㎾), respectively. Total outdoor air sensible and latent, cooling and heating load was found to be reduced by 38.8% through the thermal labyrinth system.
외단열 시스템 적용에 따른 공동주택 확장형 발코니 외벽-슬라브 접합부위의 단열성능 평가
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),최보혜(Choi Bo-Hye) 한국건축친환경설비학회 2007 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
Internal Insulation system is usually applied to the apartment in Korea. In this case, the layer of insulation is disconnected by structural components at the joints of wall-slab and wall-wall. These joints become thermal bridges at which the risk of inside surface condensation and heat loss increase. Especially at the joints adjacent to hot water pipes for heating, the heat loss is so great that the outside surface temperatures are higher by 2~4℃ in the winter than those of surrounding regions. EIFS (Exterior Insulation and Finish System) can be a solution for reducing the heat loss. Thus this study aims to evaluate the energy performance in case of applying the EIFS to the wall-slab joint including window system of the balcony in Korean apartment.