Molten salt thermal energy storage for utility peaking loadsThis paper considers the use of thermal energy storage (TES) in molten salts to increase the capacity of power plants. Five existing fossil and nuclear electric utility plants were selected as representative of current technology. A review of system load diagrams indicated that TES to meet loads over 95% of peak was a reasonable goal. Alternate TES heat exchanger locations were evaluated, showing that the stored energy should be used either for feedwater heating or to generate steam for an auxiliary power cycle. Specific salts for each concept are recommended. Design layouts were prepared for one plant, and it was shown that a TES tube/shell heat exchanger system could provide about 7% peaking capability at lower cost than adding steam generation capacity. Promising alternate heat exchanger concepts were also identified.
Document ID
19770065913
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ferrara, A. (Grumman Aerospace Corp. Bethpage, NY, United States)
Haslett, R. (Grumman Aerospace Corp. Bethpage, N.Y., United States)
Joyce, J. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference