IJEART

In this work a new approach for improvement of existing methods of thermal calculation and testing of flat-plate solar collectors and absorbers for heating the heat transfer fluid [1] is presented. The authors proposed the introduction to the practice of their thermal calculation of heat transfer coefficient from their light-absorbing heat-exchanging panel to the coolant in its heat-removing channels. The mechanism of formation of heat transfer coefficient is studied and proposed formula for its calculation. The insignificant dependence of heat transfer coefficient value on designation of light-absorbing heat-exchanging panel is established.