• 한국실내디자인학회논문집
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• 제21권1호
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• pp.86-94
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• 2012

The purpose of this study was to examine the importance of eco-friendly design elements related to residential space by residents and what element they prefer. To achieve this, 18 eco-friendly design elements related to residential space were selected from the Green Building Certification Criteria and the relevant research papers. These elements were categorized into four areas; the ecological environment area (4 elements), the indoor environmental climate one (4 elements), the energy and resource saving one (6 ones), and the material one(4 ones). On the base of these 18 elements, the importance degree of each element was examined by using 5-point Likert scale. The subjects were 299 housewives living in apartment houses in Jangyu new town, Gimhae. The subjects perceived strongly the importance of eco-friendly design elements, but many of them did not know about Green Building Certification Criteria. Overall importance of 18 elements by the residents was very high. Also, the indoor environmental climate area was considered as the most important one, followed by the energy and resource saving area, the material area, and the ecological environment one.

• KIEAE Journal
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• 제11권5호
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• pp.97-106
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• 2011

This study has been conducted focusing on the analysis of the turn-key proposal for Gimpo-Han River New City. The study expected that it would come up with design trends and introduction properties of each plan for the eco-friendly development of an apartment house. The concept of environment-friendly design was thought in four parts: 'Land use and transportation,' 'Ecological environment', 'Energy resource and environmental impact' and analysis factors of each part were chosen by specific items from the prospective researches and guidelines that already given on the projects. In conclusion, a proper development of the environmental-friendly apartment house will not be achieved unless the designers try to overcome their prejudice against eco-friendly planning elements applications. Along with the designers' attempt, it is also necessary to review the evaluation articles of the certification system for the existing environmental-friendly structures as well as to compensate and establish detailed evaluation standards. As the problems are being worked on, an integrated, effective evaluation standard for the eco-friendly planning elements will be determined. This way, an environmental-friendly residential development with a better quality will be eventually realized.

• 환경정책연구
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• 제8권3호
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• pp.181-206
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• 2009

본 연구의 목적은 김포양촌 신도시를 대상으로 조성될 생태시설로써 조류생태공원, 에코센터, 생태하천과 생태수로 등에 대한 비용편익을 추정함으로써 그 경제적 타당성을 분석하고자 함이다. 본 연구는 최초로 생태 친화적 신도시개발의 경제성분석을 시도하였다. 생태시설에 대한 모든 시나리오에서 B-C비율은 1을 넘었다. 특히 에코센터의 편익/비용 비율이 5.02-3 75로 가장 높았다. 네 가지 생태시설의 건설비용이 50%증가를 가정한 경우에도 경제적 타당성을 유지하였다. 본 연구는 신도시 건설을 할 경우 생태적 다양성을 갖추는 것이 주거단지조성의 핵심요소임을 시시하고 주택건설의 방향이 탄소배출제로 및 에너지 효율화와 조화된 방향으로 추진될 것을 제안한다.

• 한국수소및신에너지학회논문집
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• 제27권6호
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• pp.685-692
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• 2016

Hydrogen will be a future eco-friendly energy source that can replace current fossil fuels However when hydrogen gas leaks and people inhale a lot of hydrogen gases, they can have fatal effects fell into comas. Therefore, we need to develop a safety technology and related guidelines for reducing risks of hydrogen leakage. In this regard, we carried out demonstration tests assuming a situation of hydrogen leakage. Before the experiments, we analyze the standards for governor facilities to check vent positions and sensor positions. Then, we select four types of ventilation structures and proceeds with the experiments of hydrogen leakage at 1 LPM and 1.5 LPM. Based on the experimental results, we propose the direction on optimization of vent positions and sensor positions in the hydrogen leakage situation.

• 자원환경지질
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• 제51권1호
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• pp.67-76
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• 2018

본 연구는 해외 친환경에너지타운에서 보어홀 지중열 저장(BTES) 기술을 활용한 융복합 열에너지 공급 시스템의 3가지 사례로서 캐나다의 ADEU(Alexandra District Energy Utility) 및 DLSC(Drake Landing Solar Community)와 덴마크의 Brædstrup Solpark를 조사하였다. 이들 지역 냉난방 시스템들은 효율과 지속가능성을 높이기 위하여 다중 에너지원을 활용하고 있다. ADEU는 리치몬드시에서 726 개의 지중열교환기로 이루어진 지열필드 및 천연 가스 백업 보일러를 이용한 대규모 지역에너지 공급을 위해 개발되었다. 그리고 캘거리시 인근 Okotoks에 위치한 DLSC는 여름철에 풍부한 태양열 에너지를 144 개의 지중열교환기를 통하여 지중에 저장하고 겨울철 난방을 위해 각 주택에 열에너지를 분배하는 계간축열 방식의 지역난방 시스템이다. Brædstrup Solpark 지역난방 시스템은 태양열, 히트 펌프, 보일러 플랜트 및 계간축열을 위한 48 개의 지중열교환기로 구성되며 다중 에너지원을 이용하여 열을 저장한다. BTES 시추공의 심도와 축열량은 지하수 유동과 지반의 열물성에 따라 영향을 많이 받는다. 이러한 시스템들은 경쟁력 있는 에너지 가격으로 장기적인 에너지를 공급함으로서 신뢰성과 경제성을 평가 받았다. 그리고 ADEU와 Brædstrup Solpark는 서비스 영역 확장을 위한 장기 에너지 공급 계획을 기반으로 확장이 진행중이다. 본 조사를 통하여 이러한 시스템들은 사회 경제적인 이익 뿐만아니라 환경적인 관점이 설계에 반영되어 있는 것을 알 수 있었다. 국내에서도 이러한 프로젝트를 실시하기 위해서는 지방 정부 또는 관련 기관의 에너지 정책 지원 뿐만아니라, 관리 기관 설치를 통한 장기적인 협력이 필요하다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권4호
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• pp.1123-1146
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• 2023

In South Korea, there have been many studies on efficient building-energy management using renewable energy facilities in single zero-energy houses or buildings. However, such management was limited due to spatial and economic problems. To realize a smart zero-energy city, studying efficient energy integration for the entire city, not just for a single house or building, is necessary. Therefore, this study was conducted in the eco-friendly energy town of Chungbuk Innovation City. Chungbuk successfully realized energy independence by converging new and renewable energy facilities for the first time in South Korea. This study analyzes energy data collected from public buildings in that town every minute for a year. We propose a smart city building-energy management model based on the results that combine various renewable energy sources with grid power. Supervised learning can determine when it is best to sell surplus electricity, or unsupervised learning can be used if there is a particular pattern or rule for energy use. However, it is more appropriate to use reinforcement learning to maximize rewards in an environment with numerous variables that change every moment. Therefore, we propose a power distribution algorithm based on reinforcement learning that considers the sales of Energy Storage System power from surplus renewable energy. Finally, we confirm through economic analysis that a 10% saving is possible from this efficiency.

• 대한토목학회논문집
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• 제35권6호
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• pp.1377-1385
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• 2015

우리나라 경제성장의 핵심 원동력이었던 건설업은 오늘날 환경부하량 배출이 가장 많은 산업으로 류되고 있다. 이에 건설업은 친환경을 실현하고자 많은 노력을 기울였지만 그 효과는 미비한 실정이다. 본 연구는 사업 초기단계에서 친환경 VE가 적용이 가능하면 건설업의 친환경 효과가 클 것이라 판단되기에 발주자의 친환경 VE 의사를 파악 할 수 있는 NIA 모델을 개발 후 시뮬레이션 하였다. 경북북부권 환경에너지 종합타운 조성 민간사업의 제안 보고서를 기반으로 친환경 VE 의사를 묻는 20문항을 시뮬레이션 한 결과 50%의 친환경 의사가 있음을 도출 할 수 있었다. 본 연구의 결과는 친환경 VE 의사를 도출하기 위하여 설문조사를 한 후 NIA를 활용하여 건설 초기단계에서 친환경적인 설계를 위한 의사결정시 판단자료로 제공 될 수 있을 것이다.

• 설비공학논문집
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• 제30권4호
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• pp.167-174
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• 2018

The geothermal heat pump systems were installed for heating and cooling of public buildings in Jincheon Eco-friendly Energy town. The heat pump system was operated at night to save on operational costs, and the cold heat was stored in thermal energy storage (TES). In this study, the performance of geothermal heat pump systems with the TES during the summer season was analyzed, and the operational costs with and without the TES were compared. The electric chiller model was used to simulate a heat pump applied without the TES system. Electric rates of each system were measured to calculate operational costs. When the TES is used in the air conditioning system, the electric load (30.4 MWh) calculated in the daytime can move to off-peak load time, and the operational cost is reduced by 36~54%.

• 한국태양에너지학회 논문집
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• 제37권2호
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• pp.67-75
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• 2017

We have investigated the operating characteristics of $1,600m^2$ large-scale solar thermal system installed in an eco-friendly energy town in Chungbuk Innovation City. The operation criteria of the collecting pump and storage pump were different from the existing standard, and it was confirmed that each pump works well according to the changed criteria. Based on the data of the representative day, the daily collecting heat (efficiency) and the production (storing) heat (efficiency) were estimated. It was confirmed that the daily collecting heat (efficiency) of the flat plate type was higher than that of the evacuated tube type, but the useful heat production was more in evacuated tube type collector.

• 한국지역사회생활과학회지
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• 제27권spc호
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• pp.703-714
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• 2016

Dwelling environments that can help elderly farmers to live more safely, independently, and conveniently are becoming more and more important. Many rural houses are built without any particular architectural or energy-related criteria, so most of them have poor insulation. The construction technology used is also not precise, which increases the loads for heating and cooling. Therefore, rural houses need to be improved. Also, there is more and more need for plans to realize eco-friendly dwellings, so the principle of nature-oriented plans related to the direction, insulation, or landscaping of a house is being emphasized. Insulation is one of the most effective ways to save energy for heating and cooling. This preliminary study to improve the insulation of rural houses examined three regions in South Korea: the central region, the southern region, and the Jeju Island. A field investigation was conducted on a total of 18 houses, including six from each town in the selected regions. The information was used to figure out the current status of rural houses and the characteristics of the buildings. The main living spaces are the living room for the central region and the main room in the southern region and Jeju Island. The southern regions are plane shapes surrounded by rooms, and all ventilation is accomplished by windows. The studied houses were mostly masonry structures with slate rooftops. Additions and improvements included room expansions and bathroom interior installations.