Abstract
UDC 536.248.2
DOI https://doi.org/10.5281/zenodo.1048824
The influence of the spatial orientation of the evaporative condensing system (ECS) on the heat transfer coefficient is considered. It is found that it varies according to the cosine law, depending on the angle of rotation, which implies that it is at its minimum when the evaporator is at the top position and it is at its maximum when the heater is at the bottom position. It is consistent with physical considerations about the impact of buoyancy forces on heat transfer. The estimates of the average speed of the coolant circulation through the loop are presented, being the basis of estimates for the “electric” Reynolds number, heat transfer coefficient, and pressure in the system are carried out. The physical interpretation of the considered phenomena is conducted and satisfactory agreement of the experimental and calculated data is obtained.
Keywords: evaporative-condensing system, space orientation, evaporation, heat transfer, electrohydrodyna-mical pumping.