• 한국실내디자인학회논문집
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• 제22권2호
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• pp.176-185
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• 2013

(Background)In modern industrial society, the design industry failed to observe the law of nature, destructing it. Regardless its intention, the design industry destructed the environment so that it can't maintain the future life because of waste and disaster. For the purpose, it is important to adopt the technology to reuse the waste resource generated by building or minimize the damage to environment for the resource that can't be recycled. (Methods)On the assumption that the material and resource can be an alternative plan for the design that can make environment be sustained, the study analyzed materials and resources out of superior office space of USA, which were selected by LEED Green Building Rating System. (Results)The analysis result revealed that all cases reused main structural part of existing building and indoor and various materials were reused or recycled. Especially, the materials without or with low amount of VOCs and formaldehyde were used. In order to reduce construction waste, the finish of existing building was exposed as it was, 50% of reused materials were used or disassemblable materials were used. When regional materials are used, there is an advantage to reduce transportation cost and recycle the materials rapidly. Lastly, the environment-friendly certified by FSC was used in all cases. (Conclusion)After all, the material is one of the space design strategies sensitive to environment so it is important to select good material. Harmless, environment-friendly materials applied to sustainable office space contribute to the creation of healthy environment. In addition, the use of recycled materials and reused materials to minimize waste is also essential factor for creating sustainable space.

• 한국컴퓨터정보학회논문지
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• 제15권10호
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• pp.201-207
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• 2010

본 논문에서는 대규모 공공관리시스템에 그린IT 개념을 적용한 성능개선을 제안, 개발, 구현하여 관리, 비용, 인력 분야에 대하여 탁월한 성과를 도출하였다. 현재 운영 중인 시스템에 대하여 공공기관의 사용자들이 제시한 성능개선 사항을 분석하여 절감효과를 유발할 수 있는 리소스 중에서 그린IT 개념이 적용 가능한 항목을 선정하여 개선방안을 제시하고 시험운영을 거쳐 실제 시스템에 적용하는 절차로 구현하였다. 대규모 공공관리시스템으로는 국가자격 관리시스템을 대상으로 하여 기존의 개인별 시험용 저장장치를 보안처리를 강화한 온라인 처리과정으로 전환하여 비용 및 인력절감 효과와 관리상의 효율성을 확보하였다. 기존 운영시스템과 비교하여 볼 때 운영인력, 장애처리, 유지보수, 관리비용에서 2배에서 최대 12배의 효율성이 도출되었으며 년 간 최대 500만개의 개인 배포용 저장장치를 절감하였다.

• KIEAE Journal
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• 제17권1호
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• pp.69-75
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• 2017

Purpose: Heat transfer analysis of recently developed 'slim type double-skin system window' were presented. This window system is designed for curtain wall type façade that main energy loss factor of recent elegant buildings. And the double skin system is the dual window system integrated with inner shading component, enclosed gap space made by two windows when both windows were closed and shading component effectively reflect and terminate solar radiation from outdoor. Usually double-skin system requires much more space than normal window systems but this development has limited by 270mm, facilitated for curtain wall façade buildings. In this study, we estimated thermophysical phenomena of our double-skin curtain wall system window with solar load conditions at the summer season. Method: A fully 3-Dimentional analysis adopted for flow and convective and radiative heat transfer. The commercial CFD package were used to model the surface to surface radiation for opaque solid region of windows' frame, transparent glass, fluid region at inside of double-skin and indoor/outdoor environments. Result: Steep angle of solar incident occur at solar summer conditions. And this steep solar ray cause direct heat absorption from outside of frame surface rather than transmitted through the glass. Moreover, reflection effect of shading unit inside at the double-skin window system was nearly disappeared because of solar incident angle. With this circumstances, double-skin window system effectively cuts the heat transfer from outdoor to indoor due to separation of air space between outdoor and indoor with inner space of double-skin window system.

• 한국환경복원기술학회지
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• 제15권2호
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• pp.137-147
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• 2012

GRS is an effective urban ecology restoration technique that can manage a variety of environmental functions such as ecological restoration, rainwater spill control and island heat effect from a low-impact development standpoint that can be utilized in new construction and retrofits. Recently, quantitative evaluation studies, both domestic and abroad, in the areas related to these functions, including near-earth surface climate phenomenon, heavy rainwater regulation, thermal environment of buildings, have been actively underway, and there is a trend to standardize in the form of technological standards. In particular, centered on the advanced European countries, studies of standardizing the specific insulation capability of buildings with green system that comprehensively includes the green roof, from the perspective of replacing the exterior materials of existing buildings, are in progress. The limitation of related studies in the difficulties associated with deriving results that reflect material characteristics of continuously evolving systems due in part to not having sufficiently considered the main components of green system, mechanisms of vegetation, soils. This study attempts to derive, through EnergyPlus, the effects that the vegetation-related indicators such as vegetation height, FCV, etc. have on building energy load, by interpreting vegetation and soil mechanisms through plant canopy model and using an ecological standard indicator LAI that represent the condition of plant growth. Through this, the interpretations that assume green roof system as simple heat insulation will be complemented and a more practical building energy performance evaluation method that reflects numerical methods for heat fluxes phenomena that occur between ecology restoration systems comprised of plants and soil and the ambient space.

• 한국실내디자인학회논문집
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• 제15권4호
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• pp.21-28
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• 2006

To promote environmentally responsible architectural practice, many nations have established their own green building rating system. Among other criteria, recently the indoor environmental quality section has been paid great attention due to Sick Building Syndrome, as this believed to caused by polluted indoor environment. In this context, indoor environmental quality is one of very important sections of each green building rating system and closely related to the very happiness of building users. The goal of this research is to compare and analyze the indoor environmental sections of three green building rating systems, GBCC, LEED v2.1, and BREEAM Office 2005, and find a direction for the improvement of GBCC. First, the three rating systems are analyzed in general to compare the importance of indoor environmental factors in each system. Second, the indoor environmental factors are reclassified within related sub-categories for the comparable analysis. Finally, based upon the comparable analysis, directions for the improvement of GBCC are as follows: 1. GBCC's h4r Environment Section needs to clarify its VOCs criteria based upon types of finish materials. 2. Sound Environment Section's noise control criteria needs to be revised based upon types of building usages and application method. 3. An indoor lighting related section needs to be included in GBCC, as even though light is the one of the most important factors in indoor environment, it has not been included in GBCC yet. 4. The sub-section of Confortable Indoor Environment Section related to the resting space and the universal accessibility are not in accord with the goal of green building rating system. These items need to be dealt within general building codes. 5. The rating evaluation structure and process need to be streamlined.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년 춘계학술발표대회 논문집
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• pp.129-133
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• 2009

country for green growth under minimizing boils to do change in climate under confronting boil the use of petrifaction resources energy and in change. Reduces the greenhouse gas and a environmental contamination, continuity for the growth which is possible demobilizes the greens and ecosystem, with alternative the roof which is an idle space from the construction water and the greens and uses creates in compliance with the effect which is various an energy economy and applies. Roof telerecording the synergy effect which follows with the effect which is various is not the energy saving which leads one effect which is simple in harmony and this lives together the environment which leads and possibility means that becomes the environmental element which hits.

• 한국대기환경학회지
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• 제27권4호
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• pp.379-386
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• 2011

Catalyst-assisted plasma system with a DBD (Dielectric Barrier Discharge) reactor was used to remove hydrogen sulfide, which is one of the odorous species in this study. The ${\gamma}-Al_2O_3$ and ${\beta}$-Zeolite catalysts impregnated by Ag, Cu and Mn species were employed as catalysts and their $H_2S$ removal characteristics under plasma irradiation were investigated. From the experimental study, we found that the $H_2S$ removal efficiency increases with decreasing space velocity in the system and increasing specific input energy. Furthermore, ${\beta}$-Zeolite catalysts are efficient to remove $H_2S$ than ${\gamma}-Al_2O_3$ catalysts. Especially, the catalysts impregnated by Ag have higher removal efficiency than other catalysts (Cu, Mn).

• 한국조경학회지
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• 제46권1호
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• pp.72-85
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• 2018

본 연구는 지속가능한 도시 발전을 위해 도시 외연부 녹지를 활용한 해외사례에 주목하였다. 그 대상으로 서울의 외연부 녹지와 입지적 형태적 상황이 유사한 독일 베를린-브란덴부르크 광역공원화 사례와 이탈리아 밀라노의 방사형 녹지축 사례를 선정 및 분석하였다. 분석의 틀로 기존 인프라 접근성 및 연계, 재활용, 협력적 관리를 세웠다. 사례분석 결과는 다음과 같다. 첫째, 도시 외연부 녹지의 생태적, 문화적 특성을 고려한 차별화 된 공간 전략이 지속가능한 발전 계획의 토대로 이용되었다. 둘째, 도시 중심에서 외곽으로 이어지는 물리적 연계가 생태적, 환경적 가치뿐 아니라, 주변 지역의 경제적 가치 향상과 연결되어 도시의 지속가능한 발전에 이바지하였다. 셋째, 도시 외연부에 걸쳐있는 녹지의 통합적인 협력 관리 시스템을 구축하여, 행정관리 주체의 다원화와 다양한 이해관계자 사이의 갈등을 유기적인 조절을 통해 지속성을 유지하고자 하였다. 연구의 시사점은 다음과 같다. 현재 서울 외연부는 녹지가 분산되어 있고 연속적인 산지가 이루어져 있으나, 전체 경관이 획일적이기 때문에, 도시 외연부 녹지 경관의 정체성을 재정립한 차별화 전략 수립이 필요하다. 또한, 주변부산지와 도심지 녹지를 적극적으로 연계하여 생태적 가치와 경제적 가치 창출을 도모하고, 궁극적으로 도심의 지속가능한 발전이 이루어질 수 있도록 도모해야 한다. 마지막으로, 도시 외연부에 위치한 녹지의 대부분이 여러 행정경계 상에 위치하여 녹지관리주체가 파편화 되어있는 현 실정을 해소하기 위한 통합적 관리 시스템을 구축해야 한다. 결론적으로 본 연구는 도심 중심의 도시 발전 관점에서 벗어나 도시 외연부 녹지의 접근성 및 연계, 활용 및 관리로부터 이루어지는 도심의 지속가능한 발전이 이루어질 수 있는 가능성을 확인하였다는 점에서 의의가 있다.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
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• pp.451-456
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• 2012

This study was carried out to evaluate thermal performance of the renewable hybrid heat supply system with solar thermal system and wood pellet boiler for Zero Carbon Green home of apartment houses. The hybrid heat supply system was set up at Korea Institute Energy Research in 2011. The system was comprised of the wood pellet boiler unit with heat capacity designed as 20,000 kacal/hr, a evacuated tubular solar collector 3.74 $m^2$ of aperture area at the $20^{\circ}$ install angle, a 0.3 $m^3$ hot water storage tank, a 0.15 $m^3$ hot water storage tank for space heating. Thermal performance tests for one-house of apartment house were carried out by hot water load and heating load in winter season through the hybrid heat supply system. As a result, hot water energy supplied by the hybrid heat supply system was 11kWh in a day. Solar thermal energy portion was 2.99kWh which is 27% of the total hot water energy supply. wood pellet boiler supply portion was 8.017kWh which is 73% of the total hot water energy supply.

• 교육시설 논문지
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• 제18권2호
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• pp.3-14
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• 2011

This study aims to identify differences and lessons in eco-school planning techniques and sustainable design methods by analyzing comparatively green building certification system and the cases of sustainable schools in US, Korea and Japan. As a result of the comparative analysis, green building certification system for school facilities, both domestic and international, is categorized into external environment, energy, materials and resources, and indoor environment. From the case study, it is common that roof garden and biotopes are installed for external environment, while energy saving, passive energy utilization methods for natural lighting and ventilation such as arrangement planning, courtyard, top-light, shading devices, solar panel and insulation by roof garden are most frequently used. Also, storm water uses, water saving equipment and sustainable materials are often introduced for resource savings. Concerns for indoor environment is frequently addressed by introducing natural light and ventilation in the buildings, which makes ultimately a comfortable space.