Process Equipment and Plant Design
Floating head heat exchangers are used for the

Heat transfer between corrosive fluids
Co-current heat transfer systems
Cases where temperature difference between the shell and the tubes is more (>50°C)
Counter-current heat transfer systems

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Process Equipment and Plant Design
Pick out the wrong statement about routing of fluids in a shell and tube heat exchanger.

Lower flow rate fluid should be routed through the shell side
The viscous fluid should be routed through the shell side
Higher pressure fluid stream should be routed through the shell side
The corrosive and fouling fluid should be preferably routed through the tubes

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