GNRG’s Heat Exchangers
GNRG’s Heat Exchangers are underground heatsinks based on a particular geometry (patent pending, 102015000082522 of 12.11.2015). They have been developed in the last three years by HTE in partnership with Albo Consulting Holding, using mathematical models of thermal diffusion. Differently from the traditional systems where the thermal exchange with the soil is made only through the plastic interface of the probe, thus requiring a wide exchange surface (150 m / 360-590 ft tall probes), GNRG’s Heat Exchangers us:
- a double exchange interface: a plastic interface mediates a water-water exchange, while the other one, which is made of highly-conductive steel, mediates the water-soil exchange;
- a double circuit: the first is connected to the heat pump as in traditional geothermal plants and the second is connected to an external heatsink, which allows the geothermal field to be restored.