Consider application of the naphthalene
Chapter 6, Problem 6.64(choose chapter or problem)
Consider application of the naphthalene sublimationtechnique ( 6.63) to a gas turbine blade that iscoated with naphthalene and has a surface area ofAs?0.05 m2.To determine the average convection heat transfer coef-ficient for a representative operating condition, anexperiment is performed in which the coated blade isexposed for 30 min to atmospheric air at the desiredvelocity and a temperature of T??27C. During theexperiment the surface temperature is Ts?27C, and atits conclusion the mass of the blade is reduced bym?8 g. What is the average convection heat transfercoefficient associated with the operating condition?
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