Solar Water Heaters
Solar water heating systems facilitate high-efficiency absorption and utilization of solar energy with minimum heat loss. The sunlight incident on the Vacuum tube passes through the outer transparent glass tube and strikes the outer surface of the inner glass tube with a selective coating (AI/AIN). This glass tube, which acts like a black body which absorbs the radiation and gets heated up in the process. The presence of a vacuum between the two tubes prevents heat loss to surrounding.
The heated inner tube transfers this heat to the water with which it is directly in contact. Hot water is lower in density and therefore has a tendency to rise upward. Cool water from the tank flows down to replace the hot water, facilitating circulation by thermosyphon. And through this process, the entire water in storage tank heats up and gets ready for use. The storage tank is insulated with PUF which minimizes the heat loss at night.
Helio-Navitas India Pvt Ltd.
