A 1-mm-diameter horizontal platinum wire of emis-sivity
Chapter 10, Problem 10.36(choose chapter or problem)
A 1-mm-diameter horizontal platinum wire of emis-sivity ??0.25 is operated in saturated water at 1- atmpressure.(a) What is the surface heat flux if the surface temper-ature is Ts?800 K?(b) For emissivities of 0.1, 0.25, and 0.95, generate aloglog plot of the heat flux as a function of sur-face excess temperature, ?Te?Ts?Tsat, for150??Te?550 K. Show the critical heat fluxand the Leidenfrost point on your plot. Separately,plot the percentage contribution of radiation to thetotal heat flux for 150??Te?550 K.
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