Update on designing for high-fouling liquids
A critical analysis of shell and tube exchanger systems looks at ‘clean and dirty’ service performance
Heat exchanger design for high-fouling liquid hydrocarbons
requires careful consideration to minimize the frequency of
costly shutdowns. In an earlier article, an alternative
methodology was presented that aimed at achieving a critical
velocity made possible by a reduced amount of excess surface
area.1 This was recommended in lieu of typical
fouling resistances that result in large excess surface areas
with lower velocities for the same pressure drop. Here we
Importance of shear stress by controlling the fluid
Role of allowable pressure drop
Fouled performance of low-foul designs
compared to conventional designs.
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