CALCULATION OF THE CHARACTERISTICS OF TRANSFER OF THERMAL 
RADIATION IN THE WORKSPACE OF AN ANNULAR FURNACE

V. I. Timoshpol'skii,a M. L. German, a 
P. S. Grinchuk, a and D. N. Andrianovb 

UDC 536.33

A study has been made of the distinctive features of radiation 

transfer in the workspace of an annular furnace and the accuracy of 
calculation of radiation fluxes incident on the furnace walls in operation 
of the annular furnace and on the surface of cylindrical and rectangular 
metallic billets worked. The possibility of reducing the dimension 
of the problem on calculation of thermal-radiation fluxes from a three-
dimensional problem to a two-dimensional one has been substantiated. 
The influence of the selectivity of the radiation of flue gases and 
the emissivity factor of refractory furnace surfaces on the integral 
radiation-flux densities has been considered.

a A. V. Luikov Heat and Mass Transfer Institute, National Academy 
of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, 
Belarus; email: mgerman@rambler.ru; b Belarusian State Technical 
University, Minsk, Belarus. Translated from Inzhenerno-
Fizicheskii Zhurnal, Vol. 78, No. 3, pp. 3-14, May-June, 
2005. Original article submitted October 5, 2004.