An Investigation of the Mechanisms of Heat Transfer in Low-Density Phenolic-Nylon Chars.
SOUTHERN RESEARCH INST BIRMINGHAM AL
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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.
- Inorganic Chemistry