The main function of baffles provided in a shell and tube heat exchanger is to______________?
Correct answer: C. Enhance turbulence
- A. Facilitate the cleaning of outer tube surface
- B. Hold the tubes in position
- C. Enhance turbulence
- D. All A , B & C
Explanation
Baffles direct the shell-side fluid across the tubes, increasing its velocity and turbulence and therefore improving heat transfer. They also support the tubes, but their principal heat-transfer purpose is turbulence enhancement; they do not primarily facilitate outer-surface cleaning.
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