Heat transfer through combined thermal insulation of cylindrical vacuum resistive furnace

Abstract

The paper is devoted to simulation problem of heat transfer in vacuum shaft electric resistive furnace with combined insulation. Concept of critical diameter of cylindrical combined thermal insulation is explained. Physical-and-mathematical model for investigation of interconnection of geometrical and thermophysical parameters of the combined thermal insulation with heat flow through it is proposed. Dependences of effective heat transfer coefficient of screen partition of the combined thermal insulation and effective critical diameter of the insulation partition of the combined insulation upon its geometrical and thermophysical parameters are uncovered.