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  2. Direct exchange geothermal heat pump - Wikipedia

    en.wikipedia.org/wiki/Direct_exchange_geothermal...

    DX system being drilled in the 1980s. A direct exchange (DX) geothermal heat pump is a type of ground source heat pump in which refrigerant circulates through copper tubing placed in the ground unlike other ground source heat pumps where refrigerant is restricted to the heat pump itself with a secondary loop in the ground filled with a mixture of water and anti-freeze.

  3. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

  4. Geothermal heating - Wikipedia

    en.wikipedia.org/wiki/Geothermal_heating

    That heat can be extracted with a geothermal heat pump more efficiently than it can be generated by conventional furnaces. [10] Geothermal heat pumps are economically viable essentially anywhere in the world. In theory, geothermal energy (usually cooling) can also be extracted from existing infrastructure, such as municipal water pipes. [14]

  5. International Ground Source Heat Pump Association - Wikipedia

    en.wikipedia.org/wiki/International_Ground...

    Established in 1987, the International Ground Source Heat Pump Association (IGSHPA) is a nonprofit, membership-based organization that promotes geothermal heat pump technology. It was a outreach unit of the College of Engineering, Architecture and Technology (CEAT) at Oklahoma State University until 2020. In June 2020, the OSU Board of Regents ...

  6. Glossary of geothermal heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geothermal...

    The refrigerant in the heat pump either extracts heat from the fluid or rejects heat to it, cooling or warming the refrigerant. When heat is absorbed by the refrigerant, the heat pump boosts its temperature and sends it to the air handler to circulate hot air to heat the home and (optionally) to a hot water heater to produce domestic hot water.

  7. Downhole heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Downhole_heat_exchanger

    A downhole heat exchanger, (DHE) also called a borehole heat exchanger, (BHE) is a heat exchanger installed inside a vertical or inclined borehole. [1] It is used to capture or dissipate heat to or from the ground. DHT's are used for geothermal heating, sometimes with the help of a geothermal heat pump.