Tests and simulation of low intensity gas infrared radiant heating in a hangar

 Presents briefly the heating system of the hangar. Tests and simulates heating load and temperature distribution in vertical and horizontal directions. The measured results are close to those of simulation. The results show that the air temperature differs markedly in the vertical direction, the air temperature rises and the temperature gradient increases with the height, and the black globe temperature is higher slightly than dry-bulb temperature; the temperature fluctuation range is smaller than 2 ℃ and the temperature distribution is affected markedly by whether the hangar door is open or closed in the horizontal direction. Proposes that radiation heat transfer fraction of total heat capacity of radiation tube be improved to increase the gas efficiency.