| Title |
Development of Thermal Performance Tester for Non-Homogeneous Insulation Pannels Installed Vertically |
| Authors |
Hong Young Oh ; Ki O Song ; Hyun Ik Jeon ; Sun Young Cho |
| DOI |
http://dx.doi.org/10.6110/KJACR.2016.28.4.153 |
| Keywords |
보호 열판법 ; 보호 열상자법 ; 비균질 단열재 ; 열관류율 ; 열전도율 ; 열손실 Guarded hot plate method ; Guarded hot box method ; Non-homogeneous ; Thermal transmittance ; Thermal conductivity ; Heat loss |
| Abstract |
In case of metal insulation, which is produced by stacking stainless steel sheets and air layers in a multi-stack manner at a specific thickness, insulation performance will be evaluated based on thermal transmittance rather than the intrinsic physical properties of each material such as thermal conductivity. However, there is no standard for measuring thermal transmittance targeted for non-homogeneous insulation which is used in relatively high temperature conditions such as a power station. In this study, the thermal conductivity of homogeneous insulation acquired by the standardized guard hot plate method and the thermal conductivity of homogeneous insulation measured by the newly developed performance tester were compared to verify the confidence level of the tester. As a result, thermal conductivity acquired by the newly developed thermal transmittance tester was about 6% higher than the thermal conductivity measured by the existing guard hot plate method under the anticipated service temperature conditions. |