Shallow geothermal energy
Shallow geothermal energy is based on the same fundamental principle as solar thermal energy. However, in this case it is the ground which is acting as a heat source, not the sun. There is an underground pipe system in which a liquid heat transfer medium circulates.
ET 101
Simple compression refrigeration circuit
Cooling and heating of the heat exchangers directly tangible.
ET 262
Geothermal probe with heat pipe principle
Transparent components allow observing how the state of the heat transfer medium changes.
ET 264
Geothermal energy with two-well system
Use of geothermal energy in an open system without thermal repercussion.
HL 320.01
Heat pump
Heat pump for operation with different sources.
HL 320.07
Underfloor heating / geothermal energy absorber
Can be used as heat sink or heat source.
HL 320.08
Fan heater / air heat exchanger
Can be used as heat sink or heat source.