starreee
06.12.2019 •
Engineering
(50 pts) consider a 25-mm-diameter and 15-m-long smooth tube that is used for heating water. the tube wall is heated electrically to provide a constant surface heat flux alone the entire tube. water enters the tube at 50°c and exist at 150°c. if the mass flow rate is maintained at 0.01 kg/s, determine:
a. the surface heat flux
b. the convection heat transfer coefficient at the tube outlet
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Ответ:
120 cubic feet is the answer.