Vacuum tube for solar collectors
Vacuum tube according to the type of heat absorber material, can be divided into two categories: one is the glass heat absorber vacuum tube (or all glass vacuum tube), one is the metal heat absorber vacuum tube (or glass - metal vacuum tube). Heat pipe vacuum tube is a metal heat absorber vacuum tube, which consists of heat pipe, heat absorber, glass tube and metal cover and other major components.
Good insulation: heat pipe has a one-way heat transfer characteristics, so that hot water at night will not heat down the heat pipe to the surrounding environment.
Start fast: heat pipe heat capacity, in the sun a few minutes after the output of heat; and in the cloudy weather, than other water heaters can produce more hot water.
Heat pipe vacuum tube and other types of solar water heaters, compared with the following irreplaceable advantages:
Vacuum tube collector is the space between the endothermic body and the transparent cap rock is evacuated into a vacuum solar collector. A water heater consisting of a vacuum tube collector is a vacuum tube water heater.
