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A heat exchanger having two shell passes-eight tube passesis used to heat water from 70 to 140.C. The total surface area of heat exchanger is 800 m2and the flow rate of water is 54,000 kg/h. Hot exhaust gases having approximately the same thermophysical properties as air enter the heat exchanger at 3000C and leave it at 150.C. Determine the overall heat transfer coefficient by using effectiveness-NTU method.

A heat exchanger having two shell passes-eight tube passesis used to heat water from 70 to 140.C. The total surface area of heat exchanger is 800 m2and the flow rate of water is 54,000 kg/h. Hot exhaust gases having approximately the same thermophysical properties as air enter the heat exchanger at 3000C and leave it at 150.C. Determine the overall heat transfer coefficient by using effectiveness-NTU method.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A heat exchanger having two shell passes-eight tube passesis used to heat water from 70 to 140.C. The total surface area of heat exchanger is 800 m2and the flow rate of water is 54,000 kg/h. Hot exhaust gases having approximately the same thermophysical properties as air enter the heat exchanger at 300.C and leave it at 150.C. Determine the overall heat transfer coefficient by using effectiveness-NTU method.
Transcribed Image Text:A heat exchanger having two shell passes-eight tube passesis used to heat water from 70 to 140.C. The total surface area of heat exchanger is 800 m2and the flow rate of water is 54,000 kg/h. Hot exhaust gases having approximately the same thermophysical properties as air enter the heat exchanger at 300.C and leave it at 150.C. Determine the overall heat transfer coefficient by using effectiveness-NTU method.
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