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| Effect of Interior Material Emissivity on Thermal Insulation Efficiency of Sealed Cabin |
| Received:February 10, 2020 Revised:March 20, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.08.009 |
| KeyWord:radiative heat transfer participating medium emissivity average temperature |
| Author | Institution |
| HUANG An-wei |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| WU Yong-peng |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| LI Zhong-sheng |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| LI Xiao-hui |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| WU Dao-xun |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| SUN Cai-yun |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| SHU Lu |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| HUA Ze-hui |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| JIANG Long |
Southwest Technology and Engineering Research Institute, Chongqing , China |
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| Abstract: |
| The work aims to explore the relationship between thermal protection efficiency of sealed cabin and surface emissivity of interior materials, and analyze the influence of emissivity of interior materials on surface temperature and cabin temperature. A small sealed cabin and heating measuring device were designed to measure the surface temperature of interior materials and the interior temperature of cabin. When the emissivity of interior materials was 0.09, the interior surface temperature was 141.2 ℃, and the average temperature in the cabin was only 90.8 ℃. When the emissivity of interior materials was 0.91, the interior surface temperature was 124.4 ℃ and the average temperature in the cabin was 109.1 ℃. The surface temperature of specimen decreases with the increase of material emissivity, but the average air temperature of the cabin increases with the increase of material emissivity. The temperature difference between the surface temperature of the specimen and the average air temperature of the sealed cabin decreases with the increase of material emissivity. Meanwhile, the temperature difference between the surface temperature of the same specimen and the average temperature of the cabin increases as the heating temperature rises. |
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