Apparatus and method of utilizing thermal energy using multi fluid direct contact hydraulic cycles
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United States of America Patent
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Jul 26, 2022
Grant Date -
Dec 10, 2020
app pub date -
Mar 14, 2018
filing date -
Mar 14, 2017
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Abstract
Apparatus for extracting useful work or electricity from low grade thermal sources comprising a chamber, a source of heated dense heat transfer fluid in communication with the chamber, a source of motive fluid in communication with the chamber, wherein the motive fluid comprises a liquid phase, a flow control mechanism cooperating with the source of heated dense heat transfer fluid and with the source of motive fluid to deliver said fluids into the chamber in a manner that said fluids come into direct contact with each other in the chamber to effect a phase change of the motive fluid from liquid to gas to increase the pressure within the chamber to yield pressurized fluids, and a work extracting mechanism in communication with the chamber that extracts work from the pressurized fluids by way of pressure let down.
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