Ground Source Heat Pumps
How a heat pump works
• Heat is taken from the ground, water or air and is used to heat a refrigerant
• Ground source - The heat from the ground is collected via a solution which is part antifreeze (30%) and part water (70%)
• The heat is taken via a pipe usually plastic and taken back to the heat pump where the heat is used to warm the refrigerant
• Air source - The heat source changes from using ground and a solution as a heat source to using air as a means of warming the refrigerant
• Water source – Water is taken and passed through a heat exchanger to warm the solution that will then be used to heat the refrigerant
Ground Collectors
The GRD-System relies on state-of-the art coaxial (pipe in pipe/two connections) heat pipes that assure turbulent brine flow. The heat pipes lengths can be chosen individually as required, prefabricated heat pipe lengths are no longer necessary. Due to the heat pipes click seal system they are easily installed and quickly ready for being connected to the heat pump.
Time consuming PE welding is omitted. In combination with GRD the overall cost for the entire underground installation is cut by at least 30% in comparison to conventional drilling methods where double-U (four connections) pipes are standard.
Major benefits:
1. A compact drill rig designed for slanted, radial bores in confined spaced properties
2. Small set-up area and minimum damage to land and gardens
3. Quick and economic installation of heat pipes
4. Allows the targeting of thermodynamically rewarding groundwater bearing strata
5. Easy operationand handling
Sectional view of the brine collector system inside the drilling chamber
