Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Analysis of Heat Transfer Characteristics by Materials in Closed Conditions Using Acrylic Hemisphere (I): Comparison of Interior Finishing Materials

아크릴 반구를 이용한 밀폐 조건에 따른 재료별 열 이동 특성 분석(I): 실내마감재 종류에 따른 비교

  • YANG, Seung Min (Deparment of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • LEE, Hyun Jae (Deparment of Biobased Materials, College of Agriculture and Life Science, Chungnam National University) ;
  • KANG, Seog Goo (Deparment of Biobased Materials, College of Agriculture and Life Science, Chungnam National University)
  • Received : 2019.09.02
  • Accepted : 2020.03.06
  • Published : 2020.03.25
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Abstract

Global warming has increased interest in reducing greenhouse gas emissions. And a policy has effort to reduce energy consumption as a greenhouse gas reduction plan. In Korea, 25% of total energy is consumed in the building sector. In order to reduce energy consumption of buildings, it is possible to expand the utilization of wood as a structural material or thermal insulation materials with low thermal conductivity. It is also reported that when used as an interior finishing material, the energy consumption of the building is reduced by up to 7% by insulation performance. In this study, the heat transfer characteristics and the heat capacity were compared according to the three type of finishing materials(cement, paulownia coreana, medium density fiberboard) normally used as indoor finish materials. Through this study, most of the heat transfer volumes are transferred in the form of radiant heat, and the result was derived from the highest amount of energy and heat transfer in the use of paulownia coreana. When indoor finishing materials are used as wood, it is deemed that energy efficiency inside the building will be improved.

지구온난화로 인한 온실가스 배출 감소에 대한 관심도가 증가하고 있으며, 이 중 온실가스 감축 계획으로 에너지 소비 감소 계획이 제안되고 충족을 위한 건축물이 열관류율 기준이 강화되었다. 한국에서는 소비되는 전체 에너지 중 약 25%는 건축부문에 사용되고 있으며 건물 에너지 소비량 감소를 위한 열전도율이 낮은 건축자재 또는 단열재 개발이 요구되고 있으며, 열전도율이 낮은 목재의 활용 사례도 증가하고 있다. 또한 내부 마감재로 사용될 경우 건물 에너지 소비가 최대 7%까지 감소된다는 선행연구 결과를 바탕으로 본 연구에서는 일반적으로 실내마감재로 사용되는 3가지 유형의 마감재(시멘트, 오동나무, MDF)에 따라 열전달특성 및 열용량을 비교하였다. 본 연구를 통하여 열 이동은 복사열의 형태로 전달되며 오동나무 마감재 사용시 에너지량과 열전달량이 가장 많은 결과로 실내 마감재로 목재 사용 시 건물 내부의 에너지 효율을 향상시킬 것으로 판단된다.

Keywords

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