Engineering, 16.10.2019 01:20 devin3634
The strength and stability of tires may be enhanced by heating both sides of the rubber (k= 0.14 w/m·k, α= 6.35 × 10-8m2/s) in a steam chamber for which [infinity] t[infinity]= 200°c. in the heating process, a 20-mm-thick rubber wall (assumed to be untreaded) is taken from an initial temperature of 19°c to a midplane temperature of 120°c. if steam flow over the tire surfaces maintains a convection coefficient of h= 200 w/m2·k, how long will it take to achieve the desired midplane temperature?
Answers: 2
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The strength and stability of tires may be enhanced by heating both sides of the rubber (k= 0.14 w/m...
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