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Thermal energy storage for solar power generation - State of the art

Journal Article · · Heat Transfer Eng.; (United States)
High temperature storage for applications in solar-thermal electric systems is considered. Noting that thermal storage is in either the form of latent, sensible or chemically stored heat, sensible heat storage is stressed as the most developed of the thermal storage technologies, spanning direct heating of a storage medium from 120-1250 C. Current methods involve solids, packed beds, fluidized beds, liquids, hot water, organic liquids, and inorganic liquids and molten salts. Latent heat storage comprises phase-change materials that move from solid to liquid with addition of heat and liquid to solid with the removal of heat. Metals or inorganic salts are candidates, and the energy balances are outlined. Finally, chemical heat storage is examined, showing possible high energy densities through catalytic, thermal dissociation reactions.
Research Organization:
Indian Space Research Organization, Vikram Sarabhai Space Centre, Trivandrum, India
OSTI ID:
6666802
Journal Information:
Heat Transfer Eng.; (United States), Journal Name: Heat Transfer Eng.; (United States) Vol. 3; ISSN HTEND
Country of Publication:
United States
Language:
English