Process Equipment and Plant Design
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?

To reduce the induced vibration in the tubes
To increase the residence time of shell side fluid
To provide support to the tube bundle
To increase the tube side heat transfer co-efficient by inducing turbulence

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Process Equipment and Plant Design
The LMTD correction factor (FT) is defined as the

Geometric mean of the true temperature difference and the LMTD
Differenced of true temperature difference and the LMTD
Ratio of LMTD to the true temperature difference
Ratio of true temperature difference to the LMTD

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