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Investigation of the Ignition and Burning of Materials in Space Cabin Atmospheres. Part 1: Ignition and Burning of MaterialAn analytical study of the theory of ignition and burning of a plastic material immersed in an atmosphere of a space cabin which may be subjected to gravity force changes is considered. The hazardous condition in a space cabin environment where the changes of gravity may effect the combustion process is evaluated. The model considered the analysis of the coupled gas and solid phases and is based on the premise that material heating leads to the formation of pyrolysis gases from the decomposed solid which then react with the ambient oxidizer to further the combustion process. Moreover, free convection plays a dominant role in transporting these hot gases to the virgin material. A time-dependent study of the coupled gas-solid model as required for ignition processes with emphasis on the surface energy interchange of the gas and solid phases has been made. Detailed distribution of species composition and temperature patterns provide a spatial and time map of the evolving gases from the material combustion.
Document ID
19720024292
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lew, H. G. (General Electric Co. Philadelphia, PA, United States)
Date Acquired
August 6, 2013
Publication Date
March 1, 1972
Subject Category
Thermodynamics And Combustion
Report/Patent Number
NASA-CR-128068
GE-TIS-72SD2061-PT-1
Accession Number
72N31942
Funding Number(s)
CONTRACT_GRANT: NASW-1874
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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