Päikesesoojendus

Päikesesoojendus refers to the process of using solar energy to heat water. This technology harnesses the sun's radiation and converts it into thermal energy, which is then transferred to water for domestic or industrial use. The primary components of a solar water heating system are solar collectors, which are typically mounted on a roof or other sun-exposed area, and a storage tank.

Solar collectors absorb sunlight and heat a fluid, often a mixture of water and antifreeze, that circulates through them. This heated fluid then flows to the storage tank, where it transfers its thermal energy to the domestic water supply via a heat exchanger. In colder climates, the antifreeze mixture protects the collectors from freezing.

There are several types of solar collectors, including flat-plate collectors and evacuated tube collectors. Flat-plate collectors consist of an insulated box with a dark absorber plate and fluid-carrying tubes, covered by a glass or plastic cover. Evacuated tube collectors use a series of glass tubes with a vacuum between them and the absorber, providing better insulation and efficiency.

The stored hot water can then be used for bathing, washing dishes, and other household needs. Päikesesoojendus systems can significantly reduce reliance on conventional heating methods, leading to lower energy bills and a reduced environmental impact. Their effectiveness depends on factors such as solar radiation levels, system design, and installation quality.