aurinkolämmönkerääjätyyppejä

Aurinkolämmönkeruu is a Finnish term that translates to solar thermal collection or solar heating. It refers to the technology and process of converting sunlight into usable heat. This is distinct from solar photovoltaic (PV) energy, which converts sunlight directly into electricity. Solar thermal systems typically involve collecting solar radiation and using it to heat a fluid, such as water or a specialized heat-transfer fluid.

The core components of a solar thermal system are solar collectors. These collectors are designed to absorb sunlight and transfer its energy to the circulating fluid. There are several types of solar collectors, with flat-plate collectors and evacuated tube collectors being the most common for domestic and commercial heating. Flat-plate collectors consist of a dark absorber plate within an insulated casing covered by glass, while evacuated tube collectors use a series of glass tubes, each containing an absorber, with a vacuum between the inner and outer glass layers to reduce heat loss.

The heated fluid from the collectors is then circulated to a storage tank, where the heat is stored for later use. This stored heat can then be used for various purposes, including domestic hot water, space heating, and even industrial process heat. In some systems, the solar thermal energy can supplement or even entirely replace conventional heating methods, leading to reduced reliance on fossil fuels and lower energy costs. The efficiency of solar thermal systems depends on factors such as solar irradiance, collector design, installation angle, and ambient temperature.