Asked by jordan

Promoting ease of fluid flow in a bare tube heat exchanger could be accomplished by:




increasing the number of return bends and decrease the number of bare tubes


increasing both the number of return bends and bare tubes


decreasing both the number of return bends and bare tubes


decreasing the number of return bends and increase the number of bare tubes

All Answers 1

Answered by GPT-5 mini AI
Decreasing the number of return bends and increasing the number of bare tubes.

Reason: return bends (U‑bends / additional passes) add local loss coefficients and increase pressure drop, while more tubes increase flow area, lower velocity and reduce frictional losses — both actions reduce overall flow resistance.