Natural gas dehydration and condensate separation system employing co-axial flow heat exchanging structures
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United States of America Patent
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app pub date -
Oct 31, 2007
filing date -
Mar 9, 2005
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Abstract
A natural gas dehydration and condensate separation system facilitating the transfer of heat energy between a heat energy exchanging subsystem in said system and the Earth. One or more coaxial-flow heat exchanging structures are installed in the Earth, for facilitating the transfer of heat energy in a natural gas stream between (i) the heat energy exchanging subsystem and (ii) the Earth. Each said coaxial-flow heat exchanging structure includes an inner tube section having an outer wall surface extending between the proximal and distal ends, and a thermally conductive outer tube section, disposed coaxially around the inner tube section, and having an inner wall surface extending between the proximal and distal ends. An outer flow channel is provided between the outer wall surface of the inner tube section and the inner wall surface of the outer tube section. A turbulence generating structure is disposed along a portion of the length of the outer flow channel so as to introduce turbulence into the flow of the heat exchanging fluid flowing along the outer flow channel, thereby improving the transfer of heat energy between the heat exchanging fluid and the Earth along the length of the outer flow channel.
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