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Question
The outer surface of a vertical tube is 1.25 m long and outer diameter is 50 mm is exposed to saturated steam at atmospheric pressure. If the tube surface is maintained at 80 degree Celsius by the flow of cooling water through it, determine the rate of heat transfer to the coolant
Options:
A .  47648 W
B .  12345 W
C .  19879 W
D .  97123 W
Answer: Option C
Answer: (c).19879 W

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