Aurinkolämmönkeruu

Aurinkolämmönkeruu, also known as solar thermal energy collection, is the process of capturing and converting sunlight into thermal energy. This technology is used to heat water, air, or other fluids for various applications such as space heating, water heating, and industrial processes.

The most common type of solar thermal collector is the flat-plate collector, which consists of an absorber plate, a transparent cover, and insulation. Sunlight passes through the transparent cover and is absorbed by the absorber plate, heating the fluid inside. The heated fluid is then circulated through a heat exchanger, where it transfers its heat to the desired application.

Another type of solar thermal collector is the evacuated tube collector, which uses a series of glass tubes with a vacuum between the glass and the absorber plate. This design increases the efficiency of the collector by reducing heat loss.

Solar thermal energy collection is a renewable and sustainable source of energy, as it relies on the abundant and free energy from the sun. However, its efficiency can be affected by factors such as weather conditions, time of day, and the angle of the sun. To maximize efficiency, solar thermal collectors are often integrated with other heating systems, such as gas or electric heaters, to provide backup during periods of low solar radiation.

The global market for solar thermal energy collection has been growing in recent years, driven by increasing energy demands, concerns about climate change, and advancements in technology. However, challenges remain, such as the need for further research and development to improve efficiency and reduce costs, as well as the need for policy support to encourage adoption.