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내, 외단열 시스템 적용시의 공동주택 기준층 전면 외벽-슬라브 접합부 및 측벽-슬라브 접합부 단열성능 비교 평가
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),최보혜(Ch i Bo-Hye) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.8
Apartment building is the most common type of residential building in Korea and hot water pipes for heating are installed on the slab. 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 at which the risks of inside surface condensation and heat loss increase. Especially at the joints adjacent to hot water pipes for heating, the amount of heat loss is remarkable. It is expected that EIS (External Insulation System) is the solution to this problem. In this paper, the present conditions of EISs on the market were surveyed. Surface temperature images of apartment buildings with IIS and EIS were taken with infrared thermal imaging camera at dawn in the winter. Front wall-slab joint and side wall-slab joint of apartment building recently completed were selected as typical thermal bridges. Annual heat loss through each joint in both cases of applying IIS and EIS was evaluated by the three-dimensional transient heat transfer simulation. As results, it was found that the application of EIS to the front wall-slab joint could decrease not only the amount of insulation by 47.4% but also the annual heat loss by 4.2%. In the case of the side wall-slab joint with EIS, 29.7% decrease of annual heat loss was accomplished by no more than 4.9% increase of the amount of insulation.
한국과 영국의 주거용 건물 에너지성능 인증제도 비교분석
송승영(Song Seung-Yeong),구보경(Koo Bo-Kyoung),이병인(Lee Beung-In) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(계획계)
Many countries are making nationwide efforts to reduce the energy consumption which causes greenhouse gas emissions and global warming problems. Energy performance assessments and certification systems have been in force to save energy consumption of residential buildings, and are anticipated to have strong effects through the systems. The domestic Building Energy efficiency Rating System is in its early stages and is considered that the additional update is needed for the enlargement of energy saving effects. Thus, in this study, the operation and assessment methods of the domestic Building Energy Efficiency Rating System and the British EPB Regulations were analyzed and compared. The strengths and shortcomings of two systems were analyzed and a way of improving Korea’s relevant system was developed. In addition, the appropriate direction for Korea to take in this regard was deduced.
송승영(Song, Seung-Yeong),임아람(Lim, Ah-Ram),송진희(Song, Jin-Hee),임재한(Lim, Jae-Han),이규남(Lee, Kyu-Nam),김영탁(Kim, Yeong-Tak) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.11
Recently, curtain wall system has been applied to much more high rise buildings because of its convenience of construction. However, inside surface condensation on the curtain wall systems still has been a problem. The aim of this study is to suggest design criteria to prevent inside surface condensation on the curtain wall systems of office buildings. A variety of criteria including codes, standards and specifications of Korea and other countries were analyzed and the lowest temperature factor of 0.7 for Seoul was suggested as design criteria. In case of thermally-broken aluminum framed curtain wall system, it was shown that double glazing with soft low-e coating, argon gas, thick-walled plastic spacer and triple glazing with thick-walled plastic spacer could meet the design criteria.
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.
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.
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.