A hot surface at 250oC is to be cooled by attaching straight aluminum rectangular fins (k =
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A hot surface at 250oC is to be cooled by attaching straight aluminum rectangular fins (k = 240 W/m·K) with 25 mm length, 50 mm width and 4 mm base thickness. Fins are exposed to an ambient air condition of 30oC and heat transfer coefficient is 40 W/m2 ·K. If there are 2000 fins per m2 surface area, calculate; a. The heat transfer rate from a single fin. b. The increase in the rate of heat transfer per m2 surface area as a result of attaching 2000 fins. c. Determine the overall effectiveness of the fins.
Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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