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AssigneeHer Majesty the Queen in Right of Canda as Represented by the Minister of Natural Resources
InventorsParham Eslami-Nejad, Mohamed Ouzzane, Claude Guay, Messaoud Badache
Estimating the term…
Geothermal energy is increasingly recognized as a useful energy source for both industrial and residential purposes. Disclosed herein are units for subterranean heat exchange comprising a polymer block with ‘mini-channels’ adapted and/or sized for highly efficient heat exchange. In some embodiments such units can, as needed, be manufactured off site, spooled for transport, and conveniently installed in boreholes. Other arrangements are also described for conduits located within a borehole for heat exchange, without a polymer block. Also disclosed are geothermal heat exchange systems including those that employ such units, for example with direct expansion of a two-phase heat-exchange fluid such as carbon dioxide.
A subterranean heat exchange unit adapted for fluid connection to supply and return conduits containing a heat exchange fluid in a loop of a geothermal heat exchange system, the heat exchange unit comprising an elongate polymer block with a plurality of elongate channels extending within the block, each channel having a diameter of from 0.5 mm to 20 mm, each channel adapted for passage therethrough of the heat exchange fluid to and from the supply and return conduits.
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A geothermal heat exchange system, comprising:
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Dependencies are inferred from the claim text.