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ATMOSPHERIC RESIDUE IN U-TUBE HEAT EXCHANGER

ATMOSPHERIC RESIDUE IN U-TUBE HEAT EXCHANGER

ATMOSPHERIC RESIDUE IN U-TUBE HEAT EXCHANGER

(OP)
Hello all,

It is "common practice / conservative design" not to use u-tubes for potential fouling fluids like atmospheric residue from crude distillation, in the thermal design it is considered by the fouling factor.
What are the reasons not to use u-tubes? since the flow in the U part is in same velociy, on the other hand there are now techniques to clean fouled u-tubes (see CONCO and others).

Thanks for advise.

Regards,
        roker  

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