In our time, many scientists are looking for a way to reduce the cost of energy and make them independent. Therefore, interest in new ways of heating premises is growing very quickly. That's why the geothermal heat pump is very popular in Europe.
The presented device can combine several functions: air conditioning and heating. It is used not only in cottage houses, but also on large enough objects. The first attempts to use such a pump were made back in 1970. Naturally, at that time not everyone could afford it. However, over time, the technology began to become cheaper, so a few years later the geothermal heat pump became very common in the United States. Also, the device was installed every time the heating or ventilation system was modernized. And in some countries, their installation is determined by law.
So how does a geothermal pump work? Everything is very simple. By its action the device resembles the work of an ordinary refrigerator. A geothermal heat pump accumulates heat or cold (depending on which system is turned on: heating or air conditioning). All this happens with the help of a compressor and a coolant. The substance, passing through the heat exchanger, is capable of heating up to a temperature that has been established in the external environment. Then it boils and evaporates. Then the steam in the compressor is compressed, the heating medium is heated in the heating circuit. And the heating temperature can reach 65 degrees. The source of such heat can be a centralized heating network, a gas or electric boiler.
A geothermal heat pump is very efficient. The fact is that the refrigerant evaporates under the influence of rather cheap energy sources. The external temperature of the heat carrier can not exceed 4 degrees of heat, and the unit will work efficiently. Such a temperature always has land at a certain depth, lakes and rivers, in which the water at the bottom does not freeze, the sea, and also underground water. In this case, the operation of the system is ensured in this way: water, which is used as a heat carrier, is supplied from an underwater or subterranean circuit. Further, the heat of the earth, transferred to the heat carrier, is taken by means of the pump and fed to the building. This is done with the help of a water ring loop or air ducts.
Geothermal heat pumps for heating are economical, as it does not cost a lot to get heat. In the system, electrical energy is consumed only for the operation of the circulation pump, and also for the operation of the compressor of the device presented. The performance of such a system is very high, in this case it can reach 700%!
Among the array of advantages, geothermal heat pumps have only one, but noticeable drawback: considerable heating is required to organize such a heating system. However, in the period of operation, the investment quickly pays off.