Soojusvahetuspinnas
Soojusvahetuspinnas, also known as ground heat exchanger or geothermal heat exchanger, is a system used to transfer thermal energy between the earth and a building or other structure. This system typically involves a network of pipes buried underground. These pipes circulate a fluid, usually a mixture of water and antifreeze, which absorbs heat from the earth in colder months and releases heat to the earth in warmer months. The temperature of the earth at a certain depth remains relatively stable throughout the year, making it a reliable source and sink for thermal energy.
The primary application of soojusvahetuspinnas is in conjunction with ground-source heat pumps. The heat pump then