A thermocouple inserted in a 4-mm-diameter stainlesssteel
Chapter 12, Problem 12.77(choose chapter or problem)
A thermocouple inserted in a 4-mm-diameter stainlesssteel tube having a diffuse, gray surface with an emis-sivity of 0.4 is positioned horizontally in a large air-conditioned room whose walls and air temperature are30 and 20C, respectively.(a) What temperature will the thermocouple indicateif the air is quiescent?(b) Compute and plot the thermocouple measurementerroras a function of the surface emissivity for0.1?1.0
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