Closed-loop geothermal energy collection system
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United States of America Patent
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Sep 18, 2014
app pub date -
Mar 13, 2014
filing date -
Jul 18, 2011
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Abstract
This invention provides a method of extracting geothermal energy, comprising providing salt into a well shaft that ends in a chamber in the Earth surrounded by a source of geothermal energy. The salt melts and heats up to the temperature within the chamber. The hot molten salt is then extracted, and the heat from the molten salt is used as a source of energy to generate electricity or drive an industrial process. The salt can be re-used once the heat is extracted in a closed-loop system.
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