Water at a flow rate of m = 0.215 kg/s is cooled from 70C to 30C by

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Water at a flow rate of m = 0.215 kg/s is cooled from 70°C to 30°C by passing it through a thin-walled tube of diameter D = 50 mm and maintaining a coolant at T∝ = 15°C in cross flow over the tube.

(a) What is the required tube length if the coolant is air and its velocity is V = 20 m/s?

(b) What is the tube length if the coolant is water and V = 2 m/s?

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Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

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Question Posted: Sep 30, 2010 07:23 AM

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Water at a flow rate of m = 0.215 kg/s is cooled from 70C to 30C by

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KNOWN Diameter of tube through which water of prescribed flow rate and inlet and outlet temperatures flows Temperature of fluid in cross flow over the ...View the full answer

Fundamentals of Heat and Mass Transfer

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