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A 400-W cylindrical resistance heater is 1 m long and 0.5-cm-diameter. The resistance wire is placed...

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Mechanical Engineering

A 400-W cylindrical resistance heater is 1 m long and0.5-cm-diameter. The resistance wire is placed horizontally in afluid at 20â—¦C, flowing at a velocity of 20 m/s. Determine the outersurface temperature of the resistance wire in steady operation ifthe fluid is

(a) air and

(b) water. Ignore any heat transfer by radiation and evaluateproperties of air at 800 K and properties of water at 315 K.

Answer & Explanation Solved by verified expert
3.7 Ratings (313 Votes)
Outer surface    See Answer
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