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

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.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1358260
Assignee:
SOLARRESERVE CHO
Patent Number(s):
9,657,966
Application Number:
12/639,056
Contract Number:
FOA-0000065
Resource Relation:
Patent File Date: 2009 Dec 16
Research Org:
SOLARRESERVE, Santa Monica, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Other works cited in this record:

Hot Water Heater
patent, May 1931

Muffler
patent, October 1940

Sensible heat storage unit
patent, September 1983

Method and apparatus for operating an improved thermocline storage unit
patent, June 1985

Thermal storage systems with antiblending disc
patent, May 1986

Water heater partition and method
patent, July 1986

Hot liquid thermal energy storage tank and method
patent, February 1987

Storage tank for two fluids of different density
patent, January 1991

Expansion bellows for use in solar molten salt piping and valves
patent, April 2005

Solar dish concentrator with a molten salt receiver incorporating thermal energy storage
patent, May 2006

Solar collector and method
patent, June 2006

Solar power system and method for power generation
patent, November 2007

Solar dish concentrator with a molten salt receiver incorporating thermal energy storage
patent, November 2007

Storage tank for hot water systems
patent, December 2008

Development of a Molten-Salt Thermocline Thermal Storage System for Parabolic Trough Plants
journal, January 2002
  • Pacheco, James E.; Showalter, Steven K.; Kolb, William J.
  • Journal of Solar Energy Engineering, Vol. 124, Issue 2, p. 153-159
  • DOI: 10.1115/1.1464123

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