Heat Transfer Characteristics Through a Wire Screen for High Temperature Air Combustion Furnace at Low Reynolds Number

Abstract

In order to characterize a radiative converter for high temperature air combustion furnace, heat transfer and fluid flow characteristics through a wire screen at low Reynolds number were investigated by numerical simulation. It was confirmed that heat transfer results agree well with existing experimental data. Nusselt number of three kinds of wire screen at porosity range : 0.3<β<1 and Reynolds number range : 1<Re<300 were obtained. The difference in heat transfer characteristic of parallel wire, crossed mesh, and woven mesh were investigated. A generalized approximation formula of heat transfer coefficient through a wire screen was obtained.