Answer / sagar mashru

Hot Fluid should be passed from tube side. Because, If hot
fluid is passed from shell side than there will be heat loss
and there will also be a question of safety because of hot
surface on outer side.

Answer / vikram

hot fluid should passed from tube side because it is easy to
clear the tube side or we can easily replaced the tube if
fouling kind of things happen which will reduce the rate of
heat transfer,while cold water should passed through shell side

Answer / kln

We have to consider the properties like corrosivity,
fouling factor etc.. while selecting the t/s or s/s fluids
in an exchanger. More fouling/corrosive material to be
selected on t/s as cleaning or replacement of tubes are
easy.

Answer / k manoj kumar

Thank you guys. I have seen your answers. I have a doubt about it. Oil is neither corrosive nor acidic. Then why can't we send it through shell side?

Answer / umar

when both the fluids have equal corrosiveness, the fluid of high pressure should pass the tube side. Because the tendency of tubes to collapse by external pressure is double to that of by internal pressure.

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