GREEN LOCAL HEATING WITH GEOTHERMAL HEATING
WITH THE DGC LOCAL HEATING NETWORK, YOU CAN COOL YOUR PROPERTIES ACTIVELY AND PASSIVELY
The basic cooling principle
The refrigerator and heat pump essentially work on the same principle, just with different directions of heat flow.
In order to be able to cool with a heat pump, it is already sufficient to reverse the conveying direction of the compressor and the expansion valve or to use the geothermal heat without any compression at all.
Depending on the intensity of the required cooling capacity and the existing delivery system, active or passive heat pump cooling is used.
PASSIVE COOLING
If the room temperatures are above those of the ground in summer, heat pumps can also be used for "natural cooling".
In order to be able to cool with a heat pump, it is already sufficient to reverse the conveying direction of the compressor and the expansion valve or to use the geothermal heat without any compression at all.
Passive cooling cannot be compared with the performance of air conditioning systems or chillers.
Since only a small amount of electricity is required for the circulating pumps to exchange cold with the ground or groundwater, passive cooling is a particularly energy-saving method of air conditioning the building.
approx. - 4°C compared to outside temperature
ACTIVE COOLING
Active cooling with a brine-water heat pump (geothermal heat pump) is possible.
With this system, the heat pump is used as a cooling unit by actively reversing the heat pump cycle in summer. The heat extracted via the heating system is actively transferred to the heat source with the help of a compressor.
With active cooling, pleasantly cool interior temperatures of 20°C can be generated easily and with little power consumption thanks to the efficient heat pump process.