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High temperature thermal energy storage in moving sandSeveral high-temperature (to 500 C) heat-storage systems using sand as the storage medium are described. The advantages of sand as a storage medium include low cost for sand, widespread availability, non-toxicity, non-degradation characteristics, easy containment, and safety. The systems considered include: stationary sand with closely spaced tubes throughout the volume, the use of a fluidized bed, use of conveyor belt transporter, and the use of a blower rapid transport system. For a stationary sand bed, very close spacing of heat transfer tubes throughout the volume is required, manifesting as high power related system cost. The suggestion of moving sand past or around pipes is intended to reduce the power related costs at the penalty of added system complexity. Preliminary system cost estimates are offered. These rough calculations indicate that mobile sand heat storage systems cost less than the stationary sand approach.
Document ID
19790026090
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Turner, R. H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Awaya, H. I.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: San Diego, CA
Start Date: August 20, 1978
End Date: August 25, 1978
Accession Number
79A10103
Funding Number(s)
CONTRACT_GRANT: EX-76-A-29-1060
Distribution Limits
Public
Copyright
Other

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