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Single bi-temperature thermal storage tank for application in solar thermal plant

United States Patent

May 23, 2017
View the Complete Patent at the US Patent & Trademark Office
Thermocline storage tanks for solar power systems are disclosed. A thermocline region is provided between hot and cold storage regions of a fluid within the storage tank cavity. One example storage tank includes spaced apart baffles fixed relative to the tank and arranged within the thermocline region to substantially physically separate the cavity into hot and cold storage regions. In another example, a flexible baffle separated the hot and cold storage regions and deflects as the thermocline region shifts to accommodate changing hot and cold volumes. In yet another example, a controller is configured to move a baffle within the thermocline region in response to flow rates from hot and cold pumps, which are used to pump the fluid.
Litwin; Robert Zachary (Canoga Park, CA), Wait; David (Canoga Park, CA), Lancet; Robert T. (Canoga Park, CA)
12/ 639,056
December 16, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The government may have certain rights to this invention pursuant to Contract No. DE-FOA-0000065 awarded by the United States Department of Energy.