Radiation Effect on Heat Transfer in Narrow Cavities

The thermal comfort and air-conditioning energy consumption of vehicles or trains are dependent on the resistance its envelopes, which could be enhanced by improving radiation characteristics narrow cavities scattered in their envelopes. However, study for a feasible method effectiveness has been given little attention. This paper introduces that involves pasting aluminum foil inner wall to change cavity analyzed effects narrow-cavity heat transfer experimental numerical methods. results indicate effect made conventional material is dominant, with rate larger than 75%, an effective weakening transfer, decreasing it less 10%. will provide reference improve insulation vehicle enclosure.