At the rate of 5,000 lbm/min, water is heated from 100 to 130-F in a shell-and-tube heat exchanger. On the shell side one pass is used with water as the heating fluid, 250 lbm/min enters the exchanger at 200-F. Because of space limitations, the tube length must not be longer than 8 ft. The overall heat-transfer coefficient is 250 Btu/h - ft2 --F, and the average water velocity in the 34-in diameter tubes is 1.2 ft/s. Calculate the number of tubes per pass.

At the rate of 5,000 lbm/min, water is heated from 100 to 130-F in a shell-and-tube heat exchanger. On the shell side one pass is used with water as the heating fluid, 250 lbm/min enters the exchanger at 200-F. Because of space limitations, the tube length must not be longer than 8 ft. The overall heat-transfer coefficient is 250 Btu/h - ft2 --F, and the average water velocity in the 34-in diameter tubes is 1.2 ft/s. Calculate the number of tubes per pass.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.14P

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