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T- type thermocouples?

November 24th 2009 in Uncategorized

Two Copper-constantan thermocouples with 1 and 2 mm diameters are dipped into boiling water from ambient (20?C). The heat transfer coefficient of thermocouples is 3000 W/(m2C?). Determine the output temperature from each thermocouple in 1s, 2s, 3s, 4s, 5s, and 10 s. Estimate the time beyond which they will read the same temperature (within 0.1C?). Assume that the properties of copper-constantan to be the same as those of copper, and assume that the junction is spherical.
Draw the plots

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