A 4-pass-low-pressure surface type feedwater heater is designed to heat 92,730 kg/hr of feedwater from 40°C initial to 80°C final temperature using steam bleed at 70 kpa abs. containing 2,645 Kj/kg enthalpy. Assume no subcooling of condensate, determine the effective length of 19 mm O.D x 2 mm thick Muntz metal tubes to be installed, if the water velocity inside the tubes is 1.22 m/s and U = 3000 W /m²k based on the external surface of the tubes.

A 4-pass-low-pressure surface type feedwater heater is designed to heat 92,730 kg/hr of feedwater from 40°C initial to 80°C final temperature using steam bleed at 70 kpa abs. containing 2,645 Kj/kg enthalpy. Assume no subcooling of condensate, determine the effective length of 19 mm O.D x 2 mm thick Muntz metal tubes to be installed, if the water velocity inside the tubes is 1.22 m/s and U = 3000 W /m²k based on the external surface of the tubes.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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