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Geothermal power

Geothermal power. GEO = “EARTH” THERMAL = HEAT. TWO CATAGORIES. GEO-POWER PRODUCTION Typically must be built on tectonic fault lines Magma Pockets act as heat source for “boiler” Accounts for less than 1% of world’s energy 25% the footprint of coal fired plants No fuel imports

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Geothermal power

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  1. Geothermal power GEO = “EARTH” THERMAL = HEAT

  2. TWO CATAGORIES • GEO-POWER PRODUCTION • Typically must be built on tectonic fault lines • Magma Pockets act as heat source for “boiler” • Accounts for less than 1% of world’s energy • 25% the footprint of coal fired plants • No fuel imports • No rail lines • “Production Wells” vs “Injection Wells” • 4000 – 7000 ft. deep • Super heat fluid flashes to superheated steam • High pressure steam • Low pressure steam • Both drive the turbine • Can be exhausted if mismanaged • Power Plants in the US • Faulkner

  3. Two Categories Con’t • HVAC • Closed Looped Systems • Vertical Loop System • 150 -250 feet deep well with 5 – 6 inch core • Each well has two tubes = doubles surface area • Must grout the hole • $1850/well – depends on area • “Danglers” – air pockets with no contact • Horizontal Loop System • 6 – 14 ft deep depends on area • 100 – 200 ft long • “Slinky” effect with tubing – increases surface area • Manifold controls specific areas • Cheap but need more surface area • Open Loop System

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