• Journal of Energy Engineering
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• v.22 no.2
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• pp.83-89
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• 2013

Energy consumption is closely related to our lives. As Korea has four seasons, heating and cooling system is considered as essential facilities for the residential buildings. Accordingly, the government has continuously strengthened the design criteria to improve energy for new and existing building to save energy. The most important factor in the energy efficiency analysis for apartment is the heat transmission coefficient, and the value is significantly different as the heating energy amount is greatly different according to the window area ratio versus facade area ratio. Therefore, it is time to conduct continuous set-up for goal to enhance efficiency and restriction on window area ratio versus facade area ratio.

• Clean Technology
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• v.12 no.3
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• pp.175-181
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• 2006

The feasibility of the use of porous fossil diatoms for indoor air pollution control was investigated via the characterization of physical and chemical properties. The fossil diatoms were observed by SEM(Scanning Electron Microscope). Diatomite had well-distributed pores below 5 nm and relatively large surface area compare to sericite. However, no porosity in sericite was found. Results showed that diatomite had better performance than sericite in respect to porosity and large surface area. But diatomite which is thermally treated at $950^{\circ}C$ has no porosity and low surface area because of combustion of fossil diatoms or calcination of inorganic oxide at high temperature, and has poor adsorption capability of ammonia gas. In conclusion, porous diatomite has relatively high performance to adsorb noxious chemical compounds, such as ammonia gas and VOCs.

• Journal of the Korean Institute of Landscape Architecture
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• v.46 no.3
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• pp.14-26
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• 2018

The Biotope Area Ratio (BAR) is a quantitative pre-planning index for sustainable development and an integrated indicator for the balanced development of buildings and outdoor spaces. However, it has been pointed out that there are problems in operations management: errors in area calculation, insufficiency in the underground soil condition and depth, reduction in biotope area after construction, and functional failure as a pre-planning index. To address these problems, this study proposes implementing LIM. Since the weights of the BAR are mainly decided by the underground soil condition and depth with land cover types, the study focused on the terrain and pavements. The model should conform to BIM guidelines and standards provided by government agencies and professional organizations. Thus, the scope and Level Of Detail (LOD) of the model were defined, and the method to build a model with BIM software was developed. An apartment complex on sloping ground was selected as a case study, a 3D terrain modeled, paving libraries created with property information on the BAR, and a LIM model completed for the site. Then the BAR was calculated and construction documents were created with the BAR table and pavement details. As results of the study, it was found that the application of the criteria on the BAR and calculation became accurate, and the efficiency of design tasks was improved by LIM. It also enabled the performance of evidence-based design on the terrain and underground structures. To adopt LIM, it is necessary to create and distribute LIM library manuals or templates, and build library content that comply with KBIMS standards. The government policy must also have practitioners submit BIM models in the certification system. Since it is expected that the criteria on planting types in the BAR will be expanded, further research is needed to build and utilize the information model for planting materials.

• KIEAE Journal
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• v.10 no.6
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• pp.91-96
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• 2010

The problem of urban climate change and destruction of wildlife habitats space which is becoming more serious day by day, has to do with the impervious area(surface area) in urban space. The destruction of natural ground and indiscreet soil covering due to compact development is causing urban desertification in urban residential areas. With biotops area ratio being variously used and extended as a pre planning index, this study aims to analyze the elements of biotop area ratio that need to be supplemented in order to emerge as a realistic planning index for post evaluation measure and not act only as a examining tool in the planning stage. In particular, this study aims to examine the possibility of biotops area ratio to be used as a system to evaluate the outer space of apartment housings, in which biotops area ratio is most actively used, as a tool to secure ecological soundness of the development area after construction is finished.

• Journal of the Korean Solar Energy Society
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• v.40 no.4
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• pp.35-44
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• 2020

Currently, various policies regarding ecofriendly vehicles are being proposed to reduce carbon emissions. In this study, the required areas for charging electric vehicle (EV) batteries using electricity produced by photovoltaic (PV) power plants were estimated. First, approximately 2.4 million battery EVs, which represented 10% of the total number of vehicles, consume approximately 404 GWh. Second, the power required for charging batteries is approximately 0.3 GW, and the site area of the PV power plant is 4.62 ㎢, which accounts for 0.005% of the national territory. Third, from the available sites of buildings based on the region, Jeju alone consumes approximately 0.2%, while the rest of the region requires approximately 0.1%. Fourth, Seoul, which has the smallest available area of mountains and farmlands, utilizes 0.34% of the site for PV power plants, while the other parts of the region use less than 0.1%. The results of this study confirmed that the area of the PV power plant site for producing battery-charging power generated through the supply of EVs is very small. Therefore, it is desirable to analyze and implement more specific plans, such as efficient land use, forest damage minimization, and safe maintenance, to expand renewable energy, including PV power.

• Korean Institute of Interior Design Journal
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• no.36
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• pp.68-75
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• 2003

In Korea, even though many aspects of medical care system for the elderly have been considered. Until now, most people have realized that the conceptualization range of geriatric hospital is the same as recuperation hospital. However the recent geriatric hospital includes a short term treatment like general hospitals, together with that it has a tendency to increase the propotion of rehabilitationby the Introduction of the concept of active rehabilitation treatment for returning to society. Unlike the general hospitals, geriatric hospital has got different characteristics in a managing and patient. However this is not a concrete standard of faacilities by the law of health welfare and medical. So these kinds of research will have to keep continuing. What I want to say In this study is that the prominence of information, which is based on the existing data analysis, is what forms my latest projects that engage with a wider repertoire of strategies and approaches toward architectural problem.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.191-196
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• 2007

본 연구에서는 변화탐지 기법을 통한 도심지 건축물의 판독가능성을 검토하기 위하여 항공사진 단영상 및 정사영상을 이용하여 영상정규화와 기하보정을 통한 image subtraction기법을 적용하여 변화 탐지를 실시하였다. 변화 탐지를 위한 임계값 설정에서 단영상 변화탐지는 임계값 90% 이상에서는 일정면적 이상의 변화지역이 뚜렷이 나타났으며 정사영상 변화탐지는 임계값 $70{\sim}80%$ 이상의 결과영상이 변화탐지에 적절한 것으로 나타났다. 단영상과 정사영상 변화탐지 결과를 필터링을 통해 일정면적 이하를 제거한 후 2002년 영상과 중첩하여 변화지역을 확인 하였다. 변화탐지 기법을 판독 작업에 활용한다면 판독 우선순위 결정에 많은 도움이 될 뿐만 아니라 영상의 종류와 필요에 따른 다양한 변화탐지 기법을 적용한다면 판독 작업에 많은 활용성을 기대할 수 있다.

• KIEAE Journal
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• v.6 no.2
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• pp.35-42
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• 2006

This study is to investigate the possibility of a quantitative analysis on sunshine right in apartment houses with a new evaluation index of shading area ratio(SAR) which represents seasonal average value of shaded portion of a window during definite period. SAR values of each apartment houses in a prototype building was calculated depending on apartment building arrangement types and orientations. Since the new method proposed in this research is able to measure the sunshine possibility of the each house in detail, which is more precise and descriptive than the existing method of sunshine judgment standard based on the sunshine hours only at winter solstice, it can be appropriately utilized as a highly qualified sunshine right judgment measures in apartment buildings.

• KIEAE Journal
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• v.10 no.5
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• pp.95-100
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• 2010

Buildings receive solar radiation through windows and the solar radiation helps to save heating energy in winter. Therefore the bigger the glazing ratio is, the larger the amount of solar radiation we can receive. In this study we analysed the glazing ratio of Certified Green Building Apartments. And we verified whether the glazing ratio reflects energy saving through accepting solar radiation with correlation analysis. For glazing ratio analysis, we selected 116 apartment buildings of 19 apartment complexes that certified in 2008-2009 and took pictures of outside windows of the buildings. After that, we analysed the building's glazing ratio with 4 azimuth and checked distinction of the glazing ratio between 6 coupled azimuths. And we analysed the correlation between importance order of azimuth for energy saving and the glazing ratio change with the azimuth. The analysis showed that the glazing ratio does not reflect energy saving through accepting solar radiation.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.28 no.1
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• pp.31-37
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• 1999

최근의 건축물은 입구부분에 외부의 광장개념을 실내로 유입시켜 이용객에게 개방감을 주면서 휴식공간을 제공하고자 하는 아트리움 또는 대공간의 형태가 자주 계획되어 지고 있다. 인천국제공항의 첫 관문이자 교통시설의 중심 역할을 하게 될 교통센타에서도 바닥면적 28,000$m^2$, 높이 약45m규모의 대공간이 계획되었으며, 그의 외부형태는 그림 1과 같이 항공기와 새의 모습을 형상화하고 있다. 인천국제공항 단지 내에 위치하고 있는 교통센타는 연면적 9만5천평의 규모로서 앞서 설명한 대공간의 홀과 각종 판매시설, 주차장, 철도역사시설 둥을 갖추고 있다.