Experimental Study of Thermal Conductivity of Multilayer Cylindrical Walls

Abstract

Thermal conductivity is an important physical parameter in thermal equipment, in the blast furnace, rotary kiln and other equipment, multi-layer cylindrical wall is extremely important in industrial production of a thermal conductivity model, its thermal conductivity coefficient determines the ability of the cylindrical wall, which results in the existence of a large number of multi-layer cylinder thermal conductivity problems of the pitfalls. This paper focuses on the establishment of a mathematical model of the multi-layer cylinder thermal conductivity problem, by applying different voltages to the multi-layer cylinder wall, study the temperature distribution of the multi-layer cylinder wall under the conditions of natural convection and forced convection, and draw the line graphs under the conditions of natural convection and forced convection by Origin software, and finally conclude that: under the same conditions, the forced convection is significantly stronger than the natural convection; under the conditions of different voltages, the multi-layer cylinder wall under the conditions of steady state convection, the forced convection is much stronger than natural convection. Under different voltage conditions, the temperature of the multilayer cylinder wall under steady state conditions increases with the increase of voltage, which provides a strong support for the related research