The brine-water heat pump - energy from the ground

Similar to the air-to-water pump, the principle of operation of the brine-to-water heat pump also makes use of the temperature difference between the refrigerant in the heat pump circuit and the brine in the ground. The brine-water heat pump does not use the outside air but the stored geothermal energy. The geothermal energy gives the brine-water heat pump a heating output that is almost constant over the year. In this way, our heat pumps achieve a constant coefficient of performance and a high annual coefficient of performance. The probes required for the brine-water heat pump are drilled up to 100 m deep into the ground, depending on the nature of the soil and the calculated heating requirements of the house.
The surface collector is an alternative to the geothermal probes. Here the pipe coils of the surface collector are laid out about 2 m below the surface of the earth. The required collector area corresponds roughly to twice the living space to be heated. The geothermal probes or pipe coils are filled with a frost-proof brine liquid and flowed through. The heat pump now extracts heat from the brine medium at a low temperature level, which is then transferred to the heating or hot water preparation together with the energy absorbed by the compressor at a higher temperature level of up to 60 ° C. Here, too, the underfloor heating is ideal for a pleasant heat transfer to the living spaces in your prefabricated house.
Of course, the brine-water heat pump can be combined with a controlled ventilation system. The heat recovery increases the efficiency significantly, so approx. 90% of the heat energy of the exhaust air is retained. Keep a cool head in summer? With the intelligent additional function of passive cooling, there is no question that the brine-water heat pump can do this as well.

 

Natural warmth from the depths

Geothermal energy is available almost everywhere and uses the enormous resources of geothermal energy. After drilling, the probe pipes are firmly connected to the surrounding soil using a cement-bentonite suspension in order to achieve optimal heat transfer to the probe. A water-antifreeze mixture absorbs the geothermal energy and circulates between the probe and the heat pump. This natural energy is transferred to the building's heating circuit via the heat pump's evaporator.

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