Simulation of radiant transfer in light- transmitting film covers of flat solar collectors partially transparent to IR radiation

摘要

The formation of through radiant heat losses in light-transmitting film covers of low-potential solar-thermal plants partially transparent to IR radiation is presented. Based on the simulation of radiant heat transfer processes in the system of a heat absorber, a light-transmitting film cover partially transparent to IR radiation, and the sky, the analytical expressions for the through radiant heat loss fluxes in a single- and double-layer cover for flat solar collectors have been established.