• Title/Summary/Keyword: 소요 에너지

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An Experimental Study on a Performance Evaluation of Internal Insulation of Buildings Over 20 Years Old (20년 이상 경과된 노후건축물의 단열재 성능평가에 관한 실험적 연구)

  • Kim, Hyun-Jin;Choi, Se-Jin
    • Journal of the Korea Institute of Building Construction
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    • v.19 no.6
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    • pp.539-547
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    • 2019
  • Recently, the international community signed a climate change agreement to prevent global warming. Yet currently, the fossil fuels have been widely used in to supply building energy for cooling and heating. The Green Building certification (G-SEED), an energy efficiency rating for new or existing buildings requires that buildings meet certain conditions. Insulation is used as a building material to reduce the energy supply to buildings and to improve the thermal insulation, and it accounts for more than 90% of the total heat resistance provided by the building surface components that meet the energy-saving design standards of new buildings. In this investigation, a performance evaluation study was conducted through an experimental study by directly extracting the foam polystyrene insulation on-site during the remodeling of a building that was in the range of 22~38 years old. Through tests, it was found that the thermal conductivity of the extrusion method insulation (XPS) was reduced by 48% and the compressive strength of XPS decreased by 36% compared to KS M 3808, which is the initial quality standard. For bead method insulation (EPS) with a thickness of 50mm, the thermal conductivity, the compressive strength, and flexural failure load were similar to the initial quality standard. Therefore, in the calculation of the primary energy requirement per unit area per year, the performance of bead method insulation can be estimated simply by considering the thickness of the insulation, while a correction factor that considers its performance deterioration should be applied when extrusion method insulation is used.

A Study on the Design Method of Zero Energy Building considering Energy Demand and Energy Generation by Region (지역별 에너지 소요량과 생산량을 반영한 제로에너지건축물의 설계 방안에 관한 연구)

  • Lee, Soon-Myung;Lee, Tae-Kyu;Kim, Jeong-Uk
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.8
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    • pp.13-22
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    • 2018
  • The purpose of this study was to consider the energy generation of the building as well as the energy demand of the building in terms of zero energy building design. The reason why the zero energy building viewpoint should be discussed is that direction of the building, heat transfer rate of the building, and the S/V ratio of the building are variables related to energy demand and solar panels installed on the building roof and building envelope are variables related to energy generation. This study proceeded as follows; Firstly, the simulation model of large office and elementary school has the same mutual volume and total floor area, and the each floor area and number of floors are adjusted so that the S/V ratio is different. To the next, the energy demand and energy generation of the simulation model were derived based on the meteorological data of Seoul, Daejeon, Busan. Finally, energy demand, energy generation, and final energy demand were compared with heat transfer rate, S/V ratio, building type, region, and orientation. The results of this study is that consideration of solar power generation in terms of energy generation should be taken into consideration at the same time in consideration of the heat transfer rate, the shape, the region and the direction of the zero energy building design.

A Study on the Investment Review of Passive and Active Elements through Comparison of Energy Demand and Generation Variation of Zero Energy Building (제로에너지건축물의 에너지 소요량과 생산량 비교를 통한 패시브와 액티브 요소의 투자 검토 연구)

  • Lee, Soon-Myung;Lee, Tae-Kyu;Kim, Jeong-Uk
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.11
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    • pp.13-22
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    • 2018
  • At the time when zero energy building is expected to be generalized, this study examines whether the investment in the passive element or the active element is more effective in terms of energy in the construction process of zero energy building. In other words, the effect of energy demand by passive element and the change of energy generation by active element are examined in terms of the same investment cost. The purpose of this study is to examine the change of energy demand by passive element and the change of energy generation by active element in zero energy building and to make reasonable investment decision by comparing energy with cost aspect. For this purpose, we selected the buildings to be subjected to energy simulation and derive the required energy amount and energy generation amount by using meteorological data of four regions in Korea. The change of energy demand and energy generation according to the change of application condition was derived. In order to compare and analyze the changes in energy demand and generation at the same cost standard through price survey and quotation of window and photovoltaic power generation equipment.

일본의 경유유통문제 보고서

  • Korea Petroleum Association
    • Korea Petroleum Association Journal
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    • no.2 s.84
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    • pp.90-97
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    • 1988
  • 이 자료는 일본통산성 자문기관인 석유번의회 ㆍ경유유통문제소위원회가 1987년 12월 2일 발표한 보고서를 번역한 것이다.<역자주>

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일본의 석유정제 설비현황과 전망

  • Korea Petroleum Association
    • Korea Petroleum Association Journal
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    • no.3 s.133
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    • pp.100-102
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    • 1992
  • 이 자료는 최근 일본의 석유심의회 석유부회 석유정제설비문제소위원회에서 작성한 보고서를 옮긴 것이다. <편집자 주>

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국내정보

  • Korea Radioisotope Association
    • Radioisotope journal
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    • v.2 no.1
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    • pp.15-16
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    • 1987
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