APPROACH TO DESIGNING THE THERMAL TUBE OF VACUUMED SOLAR COLLECTOR

T.G. Mikhalenko, S.V. Gubin

This paper proposes an approach of calculation of heat pipe (HP) main technical characteristics. There are observed the advantages of HP using in solar energy, and are given the samples of existing design of the heat-transfer devices. As a sample it is provided the calculation of heat pipe for solar vacuumed collector. The calculation is based on data of energy income of solar radiation to inclined surface of solar collectors, as well as on the basis of thermophysical properties of coolant. This approach is universal for the heat pipes with a homogeneous internal structure (in the form of a grid) and allows us to compare heat transfer characteristics of the HP by using different materials and coolant.

Key words: heat pipe, solar collector, solar energy income, microvascular structure, coolant