Answer to Question #104367 in Mechanical Engineering for Daniel

Question

A finned plate is to be constructed of aluminum and designed to dissipate 125 W to a surrounding room with air at 20◦C. The base for the fins is to consist of a flat vertical plate with multiple straight vertical fins having a rectangular profile. The base plate thickness must not exceed 3 mm, and the heat source on the back side of the plate is a power device that must operate at a temperature below 75◦C. For the design, you are to determine a suitable set of the following parameters that will accomplish the heat transfer objective: (1) width and height of base plate, (2) number of vertical fins and spacing, (3) length and thickness of fins, and (4) surface treatment (if any) to enhance radiation heat transfer from the fins.

Answer 1

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