A counterflow, concentric tube heat exchanger is designed to heat water from 22 to 80 deg Cusing hot oil.which is supplied to the annulus at 162 deg C and discharged at 140 deg C. The thin-walled inner tube has a diameter of Di-22 mm and the overall heat transfer coefficient is 500 W/m2. K. The design condition calls for a total heat transfer rate of 3200 W. What is the length of the heat exchanger?

A counterflow, concentric tube heat exchanger is designed to heat water from 22 to 80 deg Cusing hot oil.which is supplied to the annulus at 162 deg C and discharged at 140 deg C. The thin-walled inner tube has a diameter of Di-22 mm and the overall heat transfer coefficient is 500 W/m2. K. The design condition calls for a total heat transfer rate of 3200 W. What is the length of the heat exchanger?

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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A counterflow, concentric tube heat exchanger is designed to heat water from 23 to 80 deg C using hot oil,which is supplied to the annulus at 163 deg C and discharged at 140 deg C. The thin-walled inner tube has a diameter of Di=23 mm and the overall heat transfer coefficient is 500 W/m2. K. The design condition calls for a total heat transfer rate of 3300 W. What is the length of the heat exchanger? Select one: a. 0.49417 b. 1.1269 c. 0.92237 d. 0.6234
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