Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2009, Vol. 30 ›› Issue (4): 582-584.DOI: -

• OriginalPaper • Previous Articles     Next Articles

An inversion method of mean beam length from absorbing gas to part of its boundary

Cui, Miao (1); Chen, Hai-Geng (1); Xu, Li (1); Wu, Bin (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-04-15 Published:2013-06-22
  • Contact: Cui, M.
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Abstract: An inversion method is presented to calculate the mean beam length from absorbing gas to part of its boundary. The three-point Gauss-Legendre integral expression is applied to getting the mean beam lengths for typical geometrical shapes, and the relevant model is verified by virtue of the data as shown in some earlier works. The mean beam lengths from gas to slab surface in different zones of a walking beam reheating furnace are inversely calculated, and the effect of gas absorption coefficient on the lengths and their modified factors are also studied. The study will benefit the correct calculation of radiative heat transfer in reheating furnace.

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