Heat Exchanger

Leak prevention.

Kindly read various leakage stream(A,B,C,E,F) in shell side of heat exchanger.

A stream - Tube & Tube hole in baffle

B stream - mail stream

C Stream - Bundle & shell - can be reduced by sealing strip

E stream - baffle & shell clearnce

F stream - passlane width -canbe reduced by seal rods

B Stream

Main heat transfer stream, follows a path around baffles and through

tube bundle; most effective stream for heat transfer

A Stream

Leakage stream, flowing through clearance between tubes and holes

in baffles; effective for heat transfer because it contacts tube surface

C Stream

Leakage stream flowing over bundle, back and forth through

exchanger in clearance between tube bundle and inside of shell;

partially effective because it contacts bundle's outside surface

E Stream

Leakage stream flowing the length of the shell between outside of

baffle and shell; not effective for heat transfer because it does not

contact tube surface

F Stream

Leakage stream flowing back and forth between baffles in passlanes,

present for units with more than 1 tubepass; partially effective

because it contacts part of the heat transfer surface (added to

Tinker's theory by Report S-SS-3-1)

thanks