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You need to make heat sinks of Ao = 0.02 m² to dissipate heat quickly. You can use 63 straight pin fins that are.04-m long and 0.01-m in diameter with k= 238 W/m. C that costs $11,999/m³, or you can use 71 straight rectangular fins that are 0.06-m long, 0.02-m wide and 0.01m thick, with thermal conductivity 179 W/m. C, that costs $8,999/m³. The convection coefficient is 14 W/m². · C in both cases. Calculate and compare the cost and performance considering the heat transfer gains of the two options and decide which one you should use to dissipate heat quickly. %3D

You need to make heat sinks of Ao = 0.02 m² to dissipate heat quickly. You can use 63 straight pin fins that are.04-m long and 0.01-m in diameter with k= 238 W/m. C that costs $11,999/m³, or you can use 71 straight rectangular fins that are 0.06-m long, 0.02-m wide and 0.01m thick, with thermal conductivity 179 W/m. C, that costs $8,999/m³. The convection coefficient is 14 W/m². · C in both cases. Calculate and compare the cost and performance considering the heat transfer gains of the two options and decide which one you should use to dissipate heat quickly. %3D

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.38P: 2.38 The addition of aluminum fins has been suggested to increase the rate of heat dissipation from...
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You need to make heat sinks of Ao = 0.02 m² to dissipate heat quickly. You can use 63 straight pin fins that are.04-m long and 0.01-m in diameter with k= 238 W/m. C that costs $11,999/m³, or you can use 71 straight rectangular fins that are 0.06-m long, 0.02-m wide and 0.01m thick, with thermal conductivity 179 W/m. C, that costs $8,999/m³. The convection coefficient is 14 W/m². · C in both cases. Calculate and compare the cost and performance considering the heat transfer gains of the two options and decide which one you should use to dissipate heat quickly. %3D
Transcribed Image Text:You need to make heat sinks of Ao = 0.02 m² to dissipate heat quickly. You can use 63 straight pin fins that are.04-m long and 0.01-m in diameter with k= 238 W/m. C that costs $11,999/m³, or you can use 71 straight rectangular fins that are 0.06-m long, 0.02-m wide and 0.01m thick, with thermal conductivity 179 W/m. C, that costs $8,999/m³. The convection coefficient is 14 W/m². · C in both cases. Calculate and compare the cost and performance considering the heat transfer gains of the two options and decide which one you should use to dissipate heat quickly. %3D
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