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윤태균(Yun Tae-Gyun),이현수(Lee Hyun-Soo),장향인(Jang Hyang-In),서승직(Suh Seung-Jik) 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.2
In this article, the author carried out a theoretical study on the application techniques of a new Combined Passive Solar System (hereinafter referred to as the CPSS) of direct gain and trombe walls to get quick morning heating and to prevent afternoon overheating for office building. The numerical model proposed in this study can be used for the performance analysis of the CPSS in the winter and summer. Heating and Cooling loads are analysed for building energy consumption reduction using this numerical model. The results indicate that CPSS in the winter and summer modes could provide profitable conditions for improvement of indoor thermal comfort control and energy saving. consequently, the application of CPSS will not lead to significant reductions in the auxiliary air conditioning demand but also realize the environmentally friendly building.
윤태균(Yun Tae-Gyun),이현수(Lee Hyun-Soo),서승직(Suh Seung-Jik) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(계획계)
Energy consumption in construction sector is gradually increasing. Building envelope is the most weak part in the energy loss. In this study, A combined passive solar system of direct-gain(curtain wall) and indirect-gain(Trombe wall) was applied to the envelope of the south facade by means of reducing energy loss through building envelope. To conduct this study, unsteady state of energy balance equations was discretized by Finite-difference method and Temperature and heat flow of each surface in winter were calculated by using numerical simulation program. The results will indicate that the CSS(Combined Solar System) indeed perform better than the reference system in thermal comfort zone
베트남 기후 및 경제적 여건을 고려한 건물에너지 패키지 적용에 따른 건물에너지 절감효과 분석
윤태균(Yun Tae Gyun),신재윤(Shin Jae Yoon),강석표(Kang Seok-pyo) 한국태양에너지학회 2022 한국태양에너지학회 논문집 Vol.42 No.5
Due to the construction industry, the increase in energy demands from the population, and economic growth in Vietnam, the need for energy efficient buildings has increased. An analysis of Vietnam’s regulations and standards related to building energy shows that Vietnam’s current technology level is similar to Korea in the 1980s, so it needs to upgrade its technology. Using Korea’s advanced energy efficient building technology, it will be possible to satisfy Vietnam’s need for energy efficient buildings. In a prior study, the baseline data were calculated using a building energy simulation program with Vietnam’s weather data and input values provided by the most recent Vietnam building energy standards (QCVN 09:2017:BXD). Then, the optimized input combination of building energy packages was derived to achieve energy savings of 60% by integrating the building energy simulation program (Energyplus) with a programming language (Python). Vietnam’s climate characteristics vary by region, so simulations were run with three sets of weather data (Northern: Hanoi, Central: Da Nang, Southern: Ho Chi Minh). As a result, the optimized input combination could reduce building energy usage by about 55% compared to the baseline model. In this study, building energy savings were analyzed using simulated data by modeling a real example building in Vietnam before the building energy package was installed.