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  2. 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 ...

  3. Geothermal heating - Wikipedia

    en.wikipedia.org/wiki/Geothermal_heating

    Geothermal heating is the direct use of ... The addition of the ground heating loop in the energy equation means that significantly more heat can be transferred to a ...

  4. Geothermal energy - Wikipedia

    en.wikipedia.org/wiki/Geothermal_energy

    Geothermal energy is thermal energy extracted from the Earth's crust.It combines energy from the formation of the planet and from radioactive decay.Geothermal energy has been exploited as a source of heat and/or electric power for millennia.

  5. Is geothermal right for your home or business? Here’s what to ...

    www.aol.com/geothermal-home-business-know...

    Geothermal units are being built at Louisville's Norton Commons. A series of loops are used -- digging down around 350 feet -- for an alternative to traditional HVAC systems.

  6. Glossary of geothermal heating and cooling - Wikipedia

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

    Unlike the closed loop in a Ground Source Heat Pump, which is used for small-scale residential heating and cooling, Closed-Loop Geothermal Systems are used for utility-scale energy production (typically >1 megawatt). A Closed-Loop Geothermal System is sometimes referred to as an Advanced Geothermal System (AGS).

  7. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    The direct exchange geothermal heat pump (DX) is the oldest type of geothermal heat pump technology where the refrigerant itself is passed through the ground loop. Developed during the 1980s, this approach faced issues with the refrigerant and oil management system, especially after the ban of CFC refrigerants in 1989 and DX systems now are ...

  8. Direct exchange geothermal heat pump - Wikipedia

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

    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.

  9. Eavor Technologies - Wikipedia

    en.wikipedia.org/wiki/Eavor_Technologies

    Eavor-Loop is a closed-loop geothermal energy extraction system. It is a buried well system consisting of two vertical wells several kilometers deep connected by an extended system of interconnected multilaterals. Multilaterals are drilled connecting the vertical wells, parallel to each other.

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