The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles ?
Correct answer: B. To increase the tube side heat transfer co-efficient by inducing turbulence
- A. To increase the residence time of shell side fluid
- B. To increase the tube side heat transfer co-efficient by inducing turbulence
- C. To reduce the induced vibration in the tubes
- D. To provide support to the tube bundle
Explanation
Baffles increase shell-side residence time, support the tubes, and limit vibration by directing cross-flow. They do not increase the tube-side heat-transfer coefficient because the tube-side fluid does not flow across the baffles.
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