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2. Ground-coupled heat exchanger - Wikipedia

   en.wikipedia.org/wiki/Ground-coupled_heat_exchanger

   Most systems are usually constructed from 100 to 600 mm (3.9 to 23.6 in) diameter, smooth-walled (so they do not easily trap condensation moisture and mold), rigid or semi-rigid plastic, plastic-coated metal pipes or plastic pipes coated with inner antimicrobial layers, buried 1.5 to 3 m (4.9 to 9.8 ft) underground where the ambient earth ...

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. Closed-loop geothermal - Wikipedia

   en.wikipedia.org/wiki/Closed-loop_geothermal

   Closed-loop geothermal systems (also known as “advanced geothermal systems” or “AGS”) are a type of engineered geothermal energy system containing subsurface working fluid that is heated in a hot rock reservoir without direct contact with rock pores and fractures.: [1] [2] [3] Instead, the subsurface working fluid stays inside a closed loop of deeply buried pipes that conduct Earth’s ...

5. Here's how geothermal energy heats and cools a home

   www.aol.com/news/heres-geothermal-energy-heats...

   Geothermal takes advantage of that constant temperature by pushing water with some antifreeze through a loop of flexible pipe that runs deep underground. The water gets circulated by a heat pump ...

6. 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.

7. Geothermal heating - Wikipedia

   en.wikipedia.org/wiki/Geothermal_heating

   In geothermal heating projects the underground is penetrated by trenches or drillholes. As with all underground work, projects may cause problems if the geology of the area is poorly understood. In the spring of 2007 an exploratory geothermal drilling operation was conducted to provide geothermal heat to the town hall of Staufen im Breisgau.

8. Shale drilling techniques could lead to a geothermal surge ...

   www.aol.com/shale-drilling-techniques-could-lead...

   Geothermal heating could rise to as much as 800 gigawatts (GW) globally, or 15% of global demand growth by 2050, with an annual output equivalent to the combined current demand for the U.S. and ...

9. Downhole heat exchanger - Wikipedia

   en.wikipedia.org/wiki/Downhole_heat_exchanger

   Drilling process for a Downhole heat exchanger. Furled tube in the foreground on the left. Bottom end of a Downhole heat exchanger Top end of a 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]