A 1 m x 1.25 m hot surface at 300 C is to be cooled by attaching a rectangular fins (k = 200 W/m K) with 30 mm length, 75 mm width and 5 mm base thickness. Fins are exposed to an ambient air condition of 25'C and heat transfer coefficient is 30 W/m K. If there are 2250 fins, calculate; a. The heat transfer rate from a single fin. b. The increase in the rate of heat transfer. Determine the overall effectiveness of the fins. c.

A 1 m x 1.25 m hot surface at 300 C is to be cooled by attaching a rectangular fins (k = 200 W/m K) with 30 mm length, 75 mm width and 5 mm base thickness. Fins are exposed to an ambient air condition of 25'C and heat transfer coefficient is 30 W/m K. If there are 2250 fins, calculate; a. The heat transfer rate from a single fin. b. The increase in the rate of heat transfer. Determine the overall effectiveness of the fins. c.

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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