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Selection of high temperature thermal energy storage materials for advanced solar dynamic space power systemsUnder the direction of NASA's Office of Aeronautics and Technology (OAST), the NASA Lewis Research Center has initiated an in-house thermal energy storage program to identify combinations of phase change thermal energy storage media for use with a Brayton and Stirling Advanced Solar Dynamic (ASD) space power system operating between 1070 and 1400 K. A study has been initiated to determine suitable combinations of thermal energy storage (TES) phase change materials (PCM) that result in the smallest and lightest weight ASD power system possible. To date the heats of fusion of several fluoride salt mixtures with melting points greater than 1025 K have been verified experimentally. The study has indicated that these salt systems produce large ASD systems because of their inherent low thermal conductivity and low density. It is desirable to have PCMs with high densities and high thermal conductivities. Therefore, alternate phase change materials based on metallic alloy systems are also being considered as possible TES candidates for future ASD space power systems.
Document ID
19880024574
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lacy, Dovie E.
(NASA Lewis Research Center Cleveland, OH, United States)
Coles-Hamilton, Carolyn
(NASA Lewis Research Center Cleveland, OH, United States)
Juhasz, Albert
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Chemistry And Materials (General)
Meeting Information
Meeting: IECEC ''87
Location: Philadelphia, PA
Country: United States
Start Date: August 10, 1987
End Date: August 14, 1987
Accession Number
88A11801
Distribution Limits
Public
Copyright
Other

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