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주택용 지열히트펌프 시스템의 용량 변화에 대한 경제성 비교 분석
이충국(Chung-Kook Lee),서승직(Seung-Jik Suh),김진상(Jinsang Kim) 한국지열·수열에너지학회 2011 한국지열에너지학회논문집 Vol.7 No.2
Geothermal heat pumps are known as the most efficient and environment-friendly heating and cooling system, and are also gaining acceptance in buildings. Building energy simulation program, EnergyPlus is used to calculate the energy consumption of residential buildings. This simulated energy consumption is essential for accurate economic analysis. Residential buildings with geothermal heat pumps have complex energy price structure. Electricity rates for residential buildings increase rapidly as the monthly use increases. This complex energy price structure makes the economic analysis complicated. The purpose of this study is to conduct economic comparison of residential geothermal heat pumps and provide a feasible approach in finding their economically feasible capacity.
지자체의 녹색성장 담당자 인식도 조사 및 5개년계획의 실행사업 비교분석 연구
이충국(Chung-Kook LEE),이정철(Jeong-Cheol LEE),김상수(Sang-Su KIM),서승직(Seung-Jik SUH) 한국에너지기후변화학회 2012 에너지기후변화학회지 Vol.7 No.1
Extreme weather phenomena since industrialization accelerated joint efforts for reducing greenhouse gas emissions of the international community such as United Nations Framework Convention on Climate Change, Kyoto Protocol and the recent agreement of the Durban platforms. The effort of reduce greenhouse gas emissions in our nation, the seventh carbon dioxide emission country is also speeding up. Basic Law of low-carbon green growth was enacted in 2009, 30 percent GHG reduction in 2020 compared to BAU greenhouse gas reduction target was declared, and the Enforcement Decree was entered into force in 2010. The law of low-carbon green growth states clearly the responsibilities to reduce greenhouse gas emissions of the country and public engagement, and the planning of local government. In this study, five-year plans for green growth of local governments, major strategies of each local government, and the perception of officers in charge of green growth department through survey were analyzed. The results showed that most local government’s officer had an agreement with the need of green growth, but expressed the difficulty as to the specific implementation strategies and their expertises, and the lack of infrastructure. In addition, five-year plan of local governments for green growth had specific strategy for each local government, but the budgets were planned very high compared to financial capabilities. It is thus turned out that further feasibility study will be necessary.
국내 에너지제로하우스 비교를 통한 요소기술 특성 및 표준 모델 제시에 관한 연구
이충국(Chung-Kook Lee),이정철(Jeong-Cheol Lee),김상수(Sang-Su Kim),서승직(Seung-Jik Suh) 한국지열·수열에너지학회 2012 한국지열에너지학회논문집 Vol.8 No.2
Five zero energy house models developed in Korea for the purpose of the energy performance were compared and analyzed in the study. The standard passive house model applying common technology and efficient energy performance elements was proposed. Standard passive house 5 models have been developed commonly aiming at 100% energy saving, applying high-performance and high-efficiency exterior thermal insulation, using 3 low-e coated window system, and targeting average 0.65 ACH to enhance privacy. Energy recovery ventilators and dry and cold radiant heating floor has been partially applied. Eco-design techniques such as the awning device, heat insulating door, using natural light have been used. Solar and geothermal systems as the application of renewable energy technologies have been commonly applied. And fuel cells were applied to a partial model. The standard model based on common technical elements and average performance of each element and obtained from five model analysis has been proposed in the study.
에너지제로하우스 인식분석 및 정책 추진방향 제안에 관한 연구
이충국(Chung-Kook Lee),이정철(Jeong-Cheol Lee),김상수(Sang-Su Kim),서승직(Seung-Jik Suh) 한국지열·수열에너지학회 2012 한국지열에너지학회논문집 Vol.8 No.2
The consultation with building energy experts working at domestic government-funded research institutes and enterprises on performance set, element technology, and policy for the realization of low-energy and the survey with construction workers on the relevance of climate change in building construction, government support policy, and methodologies for the construction of low-energy house were carried in the study. In addition the public element preference survey on the low-energy house and awareness research on the low-carbonization of building were carried and presented for the development of affordable low-energy house. There was a big difference in the recognition of building energy performance setting and setting for the construction cost to realize it between experts and ordinary citizens in the study. To fill this gap education and promotion of zero energy house and securing economic feasibility through the commercialization of element technology will be needed. The satisfaction in government’s zero energy house policy was normally low. To improve this low satisfaction administrative and technical support are considered to be expanded. Common high cost of construction was the top priority to resolve the problem, and enhancing renewable energy grants, tax relief, and substantial cost support could be as detailed solutions.
국내 에너지다소비건물의 용도별 · 지역별 온실가스 배출원단위분석 연구
이충국(Chung-Kook Lee),서승직(Seung-Jik Suh) 대한설비공학회 2010 대한설비공학회 학술발표대회논문집 Vol.2010 No.6
Our country set the mid-term reduction goal of greenhouse gases up to 2020 in accordance with Bali roadmap agreed in 2007 through the negotiation with UNFCCC in 2009 and specified the proper goal as by the Basic Act on Green Growth that went into effect at April, 2010. First of all the enlargement of green building construction has been suggested as a worldwide strategy to achieve the green house gas reduction. Building area is one of most important sectors for the countermeasure of climate change agreement and the achievement of national green house gas reduction goal and the need to reduce its green house gases has been increased accordingly. The objective of the study is to examine the status and characterization of mass energy consumption local governmental buildings' green house gas emissions depending on usage (hotel, school, apartment, hospital) through the green house gas emission source unit analysis. The result indicated that the energy source unit was proportional to green house gas source unit and hotel showed the highest green house gas emission source unit per open area of construction unit, followed by hospital, apartment, and then school. In case of apartment, green house gas emission source unit per open area of construction unit decreased as year went on. Meanwhile school building showed a striking increase in the annual energy source unit.
국내 에너지다소비건물의 용도별·지역별 온실가스 배출원단위분석 연구
이충국(Lee Chung-Kook),서승직(Suh Seung-Jik) 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.3
Our country set the mid-term reduction goal of greenhouse gases up to 2020 in accordance with Bali roadmap agreed in 2007 through the negotiation with UNFCCC in 2009 and specified the proper goal as by the Basic Act on Green Growth that went into effect at April, 2010. First of all the enlargement of green building construction has been suggested as a worldwide strategy to achieve the green house gas reduction. Building area is one of most important sectors for the countermeasure of climate change agreement and the achievement of national green house gas reduction goal and the need to reduce its green house gases has been increased accordingly. The objective of the study is to examine the status and characterization of mass energy consumption local governmental buildings' green house gas emissions depending on usage (hotel, school, apartment, hospital) through the green house gas emission source unit analysis. The result indicated that the energy source unit was proportional to green house gas source unit and hotel showed the highest green house gas emission source unit per open area of construction unit, followed by hospital, apartment, and then school. In case of apartment, green house gas emission source unit per open area of construction unit decreased as year went on. Meanwhile school building showed a striking increase in the annual energy source unit.