Molten salt thermal energy storage systems. Project 8981, final report [electronic resource].
- Chicago, Ill : Institute of Gas Technology, 1978. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 129 : digital, PDF file
- Additional Creators:
- Institute of Gas Technology and United States. Department of Energy. Office of Scientific and Technical Information
- The feasibility of storing thermal energy at temperatures of 450/sup 0/ to 535/sup 0/C (850/sup 0/ to 1000/sup 0/F) in the form of latent heat of fusion has been examined for over 30 inorganic salts and salt mixtures. Alkali carbonate mixtures are attractive as phase-change storage materials in this temperature range because of their relatively high storage capacity and thermal conductivity, moderate cost, low volumetric expansion upon melting, low corrosivity, and good chemical stability. An equimolar mixture of Li/sub 2/CO/sub 3/ and K/sub 2/CO/sub 3/, which melts at 505/sup 0/C with a latent heat of 148 Btu/lb, was chosen for experimental study. The cyclic charge/discharge behavior of laboratory- and engineering-scale systems was determined and compared with predictions based on a mathematical heat-transfer model that was developed during this program. The thermal performance of one engineering-scale unit remained very stable during 1400 hours of cyclic operation. Several means of improving heat conduction through the solid salt were explored. Areas requiring further investigation have been identified.
- Published through SciTech Connect., 03/01/1978., "coo-2888-3", " nasa-cr-135419", and Maru, H.C.; Dullea, J.F.; Kardas, A.; Paul, L.
- Funding Information:
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