Estimation of Heat Exchange Area in Sintering Beds

Abstract

A theoretical analysis was made to determine the temperature gradient in the cooling zone of the heat wave of iron ore sintering. The temperature gradient is strongly dependent on the effective heat exchange area which changes with the fusion of bed material. A simple chart was presented to estimate the heat transfer capacity coefficient h_pa from observed cooling rate or vice versa. The coefficient h_pa and the corresponding effective grain size were estimated from the observed temperature gradients reported in the literature.