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Method of incrasing the rate of heat energy transfer between a heat exchanging subsystem above the surface of the earth and material therebeneath using a coaxial-flow heat exchanging structure generating turbulence along the outer flow channel thereof
Method of incrasing the rate of heat energy transfer between a heat exchanging subsystem above the surface of the earth and material therebeneath using a coaxial-flow heat exchanging structure generating turbulence along the outer flow channel thereof
A method of transferring heat energy between a heat exchanging subsystem installed above the surface of the Earth, and material beneath the surface of the Earth, by installing one or more coaxial-flow heat exchanging structures in the material beneath the surface of the Earth. Each coaxial-flow heat exchanging structure has inner and out flow channels along which aqueous-based heat transfer fluid is circulated. Turbulance is generated in the aqueous-based heat transfer fluid flowing along the outer flow channel, to increase the rate of heat energy transfer between the aqueous-based heat transfer fluid and material beneath the surface of the Earth along the length of the outer flow channel. This in turn increases the rate of heat energy transfer between the heat exchanging subsystem installed above the surface of the Earth and material beneath the surface of the Earth.
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