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The equivalent diameter on the shell side _____ on adding fins.

The equivalent diameter on the shell side _____ on adding fins. Correct Answer Decreases

Adding Fins to the surface, the interaction of the fluid with the wall increases, the wall now occupies a larger portion of the flow area hence its wetted perimeter increases with a decrease in flow area. As De = 4A/P, A decreases and P increases implies De too decreases.

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