대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)

대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
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투습성에 따른 단열재의 단열성능평가 및 고찰

The estimation on the insulation performance of thermal insulation materials according to water vapor permeance

  • Kim, Seok-Hyun (Department of Mechanical Eng., Kookmin University) ;
  • Park, Jong-Il (Department of Building Equipment & System Eng., Dongae University) ;
  • Lee, Min-Woo (Samwoo Mechanical & Electrical Consultant) ;
  • Hong, Jin-Kwan (Department of Building Equipment & System Eng., Kyungwon University)
  • 발행 : 2006.06.21
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초록

In this study, the insulation performance of thermal insulation materials such as glass wool, polyetylene and flexible lastomeric foam according to water vapor permeance was estimated by using experimental correlation equation. The results showed the conductivity increment of flexible lastomeric foam which has very low-permeability (${\le}0.15[ng/{\cdot}s{\cdot}Pa]\;or\;{\mu}{\ge}1,000$) is about 50% lower than that of glass wool with the lapse of ten years. The conclusion is that moisture inevitably accumulated in permeable Insulations reduces insulation performance and also accelerates surface condensation in the case of cold water system.

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