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Experimental and Computational Investigations of Phase Change Thermal Energy Storage CanistersTwo sets of experimental data are examined in this paper, ground and space experiments, for cylindrical canisters with thermal energy storage applications. A 2-D computational model was developed for unsteady heat transfer (conduction and radiation) with phase-change. The radiation heat transfer employed a finite volume method. The following was found in this study: (1) Ground Experiments: the convection heat transfer is equally important to that of the radiation heat transfer; radiation heat transfer in the liquid is found to be more significant than that in the void; including the radiation heat transfer in the liquid resulted in lower temperatures (about 15 K) and increased the melting time (about 10 min.); generally, most of the heat flow takes place in the radial direction. (2) Space Experiments: radiation heat transfer in the void is found to be more significant than that in the liquid (exactly the opposite to the Ground Experiments); accordingly, the location and size of the void affects the performance considerably; including the radiation heat transfer in the void resulted in lower temperatures (about 40 K).
Document ID
19970009340
Document Type
Conference Paper
Authors
Ibrahim, Mounir (Cleveland State Univ. Cleveland, OH United States)
Kerslake, Thomas (NASA Lewis Research Center Cleveland, OH United States)
Sokolov, Pavel (Cleveland State Univ. Cleveland, OH United States)
Tolbert, Carol (NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1996
Subject Category
Fluid Mechanics and Heat Transfer
Report/Patent Number
NASA-TM-107382
NAS 1.15:107382
E-10571
Meeting Information
International Congress of Fuid Dynamics and Propulsion(Cairo)
Funding Number(s)
CONTRACT_GRANT: NAG3-1756
PROJECT: RTOP 547-10-41
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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