päikeseküttevõtetes

Päikeseküttevõtetes refers to solar thermal collectors, a technology used to convert sunlight into heat. These devices are a key component of solar thermal energy systems, which can be employed for a variety of applications, including domestic hot water heating, space heating, and industrial process heat. The fundamental principle behind a päikeseküttevõtetes is the absorption of solar radiation by a dark surface, which then transfers the heat to a fluid, typically water or a water-glycol mixture.

There are several common types of päikeseküttevõtetes. Flat-plate collectors are the most widespread and consist of an insulated, weatherproof box containing a dark absorber plate under a transparent cover. The heat absorbed by the plate is conducted to a network of tubes through which the fluid circulates. Evacuated tube collectors, on the other hand, are composed of a series of glass tubes, each containing an absorber. These tubes are evacuated to create a vacuum, which significantly reduces heat loss and allows them to operate at higher temperatures, making them more efficient, especially in colder climates.

The heated fluid from the päikeseküttevõtetes is then circulated, often via a pump, to a storage tank. From the storage tank, the hot water can be used directly for domestic purposes or further circulated to heat a building. The efficiency of päikeseküttevõtetes is influenced by factors such as solar irradiance, ambient temperature, collector design, and installation angle. Their widespread adoption contributes to reducing reliance on fossil fuels for heating and lowers carbon emissions.