Maurice Tutor

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    Argosy University/ Phoniex University/
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Category > Management Posted 26 Oct 2017 My Price 5.00

thermocouple bead


A small device is used to measure the surface temperature of an object. A thermocouple bead of diameter D =120 μm is positioned a distance z = 100 μm from the surface of interest. The two thermocouple wires, each of diameter d = 25 μm and length L = 300 μm, are held by a large manipulator that is at a temperature of Tm = 23°C.

 

If the thermocouple registers a temperature of Ttc = 29°C, what is the surface temperature? The thermal conductivities of the chromel and alumel thermocouple wires are kCh = 19 W/m ∙ K and kAl = 29 W/m∙ K, respectively. You may neglect radiation and convection effects.

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Maurice Tutor
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Status NEW Posted 26 Oct 2017 11:10 AM My Price 5.00

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