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.For a finned surface the fin effectiveness is equal to the ratio of A. The fin

ID: 2074345 • Letter: #

Question

.For a finned surface the fin effectiveness is equal to the ratio of A. The fin length to width B. heat transfer The fins conductive heat transfer to its convective C. The heat rate with the fin to the heat rate without the fin D. surface area of the fin to the volume of the fin 2. In order to solve for the temperature distribution and the heat loss for a fin of uniform cross section it is necessary to specify appropriate boundary conditions. Which one of the following cases is NOT a standard specification for the boundary condition at the tip of a fin? A. AConvection Heat Transfer Boundary B. An Adiabatic Boundary C. APrescribed Temperature Boundary D. A Radiation Heat Transfer Boundary Which Typical Boundary Condition for the tip of a fin was not listed above?

Explanation / Answer

1 c

The performance of the fins is judged on the basis of heat transfer enhancement relative to no fin case.

2d

3 Infinite long fin