Volume 36 Issue 8
Aug.  2010
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Ding Shuiting, Jiang Zugang, Xu Guoqiang, et al. Transient measurement of heat transfer coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 883-886. (in Chinese)
Citation: Ding Shuiting, Jiang Zugang, Xu Guoqiang, et al. Transient measurement of heat transfer coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 883-886. (in Chinese)

Transient measurement of heat transfer coefficient

  • Received Date: 16 Jun 2009
  • Publish Date: 30 Aug 2010
  • A new method called constant heat flux method was talked about the calculation of the heat transfer coefficient, h . The way of calculating h for the transient experiment was from step-change solution by giving a constant heat flux suddenly. If the time at which the changes colour of thermochromic liquid crystal(TLC) is known, then h can be found from the solution of so-called semi-infinite plate problem. Uncertainties of h calculated using the so-called two point method were discussed later. On the basis of this discussion it were found out how the accurate h could be got. The procedure of calculating h using constant heat flux method were listed and the free plant experiment are used to prove the method-s accuracy.

     

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