Solar Thermal Air Collectors

Solar thermal air collectors.

Solar thermal air collectors.

Solar thermal collectors are either non concentrating or concentrating. They are among the most efficient and economical solar thermal technologies available and are mostly used in the commercial sector. A simple solar air collector consists of an absorber material sometimes having a selective surface to capture radiation from the sun and transfers this thermal energy to air via conduction heat transfer this heated air is then ducted to the building space or to the process area where the heated air is used for space heating or process heating needs. The design is very simply an insulated box with a absorber sheet welded to copper pipe that the heat transfer liquid circulates through.

Those figures include set up expenses and all elements solar collectors control panel pipes hot water tank. A solar thermal collector collects heat by absorbing sunlight the term solar collector commonly refers to a device for solar hot water heating but may refer to large power generating installations such as solar parabolic troughs and solar towers or non water heating devices such as solar air heaters. Solar air heaters are mostly used for space heating and can be both glazed and unglazed. The price of solar thermal systems vary but usually you can count on to pay between 2 500 for a pool solar heat and from 7 700 for complete solar thermal installations.

The top sheet of a glazed system has a transparent top layer and an insulated surrounding frame. In fact special unglazed transpired collectors were developed for heating ambient air using the vertical façade of a building as a mounting surface.