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Heat and Mass Transport from Thermally Degrading Thin Cellulosic Materials in a Microgravity EnvironmentAttention is given to a theoretical model describing the behavior of a thermally thin cellulosic sheet heated by external thermal radiation in a quiescent microgravity environment. This model describes thermal and oxidative degradation of the sheet and the heat and mass transfer of evolved degradation products from the heated cellulosic surface into the gas phase. Two calculations are carried out: heating without thermal degradation, and heating with thermal degradation of the sheet with endothermic pyrolysis, exothermic thermal oxidative degradation, and highly exothermic char oxidation. It is shown that pyrolysis is the main degradation reaction. Self-sustained smoldering is controlled and severely limited by the reduced oxygen supply.
Document ID
19920059186
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kushida, G.
(NASA Lewis Research Center Cleveland, OH, United States)
Baum, H. R.
(NASA Lewis Research Center Cleveland, OH, United States)
Kashiwagi, T.
(NIST, Center for Fire Research, Gaithersburg MD, United States)
Di Blasi, C.
(Naples, University Italy)
Date Acquired
August 15, 2013
Publication Date
May 1, 1992
Publication Information
Publication: ASME, Transactions, Journal of Heat Transfer
Volume: 114
Issue: 2 Ma
ISSN: 0022-1481
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
92A41810
Funding Number(s)
CONTRACT_GRANT: NASA ORDER C-32000-K
Distribution Limits
Public
Copyright
Other

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