Air at 1 atm and 15oC flows through a long rectangular duct 7.5 cm by 15 cm.

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Air at 1 atm and 15oC flows through a long rectangular duct 7.5 cm by 15 cm. A 1.8-m section of the duct is maintained at 120oC, and the average air temperature at exit from this section is 65oC. Calculate the airflow rate and the total heat transfer.
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Heat Transfer

ISBN: 978-0073529363

10th edition

Authors: Jack Holman

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