Accession Number : ADA310402
Title : An Investigation of the Mechanisms of Heat Transfer in Low-Density Phenolic-Nylon Chars.
Descriptive Note : Contract rept.,
Corporate Author : SOUTHERN RESEARCH INST BIRMINGHAM AL
Personal Author(s) : Smyly, E. D. ; Pyron, C. M., Jr. ; Pears, C. D.
PDF Url : ADA310402
Report Date : DEC 1967
Pagination or Media Count : 102
Abstract : The heat transfer mechanisms in phenolic-nylon chars were investigated. In order to separate the effects of solid and gas conduction and radiation, the thermal conductivities of three phenolic-nylon chars having porosities of 0.79, 0.82, and 0.88 were measured in vacuum, nitrogen, and helium environments. The temperature range covered was from 400 deg F (477 deg K) to 1000 deg F (811 deg K). The pressure range was from 0.002 to 760 torr. The thermal conductivity increased on changing the environment from vacuum to either nitrogen or helium.
Descriptors : *HEAT TRANSFER, *NYLON, *LOW DENSITY, *PHENOLIC PLASTICS, *CHARRING, RADIATION, TEMPERATURE, ENVIRONMENTS, VACUUM, SOLIDS, NITROGEN, GASES, THERMAL CONDUCTIVITY, PRESSURE, HELIUM, POROUS MATERIALS.
Subject Categories : Plastics
Distribution Statement : APPROVED FOR PUBLIC RELEASE