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

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a shell and tube heat exchanger, the clearance of the tube is generally

More in case of triangular pitch as compared to the square pitch tube layout
Not less than one-fourth of the tube diameter or 3/16"
Equal to the tube diameter
More than the tube diameter

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Bubble cap tray is the most commonly used tray in large distillation column, because

It eliminates the foaming and entrain-ment tendency during operation
It incurs less pressure drop as compared to any other try designed for the same duty
Of its flexibility and nearly constant efficiency under varying conditions of operation
None of these

ANSWER DOWNLOAD EXAMIANS APP