Calculation of radiant heat exchange in tunnel kilns

Conclusions A new program for calculating the error when a two-dimensional model of heat exchange in tunnel kilns of various sizes and with different temperature gradients along the axis of the channel is used, has been developed. It is established that the use of a two-dimensional model is valid in the calculations of large tunnel kilns but may lead to significant errors when calculating small kilns where it is necessary to allow for the connection between the positions and the radiant component of the heat flow.Translated from Ogneupory, No. 4, pp. 23–27, April, 1982.