Fouling Factors for PHE
Fouling Factors for PHE
(OP)
I´m having a hard time in getting info of fouling factors for plate heat exchangers. Does anyone have a site with some values?
Regards
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Fouling Factors for PHE
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Fouling Factors for PHEFouling Factors for PHE(OP)
I´m having a hard time in getting info of fouling factors for plate heat exchangers. Does anyone have a site with some values?
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RE: Fouling Factors for PHE
Anyway you can try page 265 of the attached paper
RE: Fouling Factors for PHE
Tks a lot!
RE: Fouling Factors for PHE
PHE's get their extraordinary HTC's from the velocity of the fluid passing between the plates. With fluids that have a tendency to foul, the high velocity deters fouling through the scrubbing action due to the momentum change of the fluid constantly changing direction through the convolutions.
Fouling factors adds area to the Hx which reduces velocities which reduces HTC which increases fouling. The Manufacturers I am familiar with will try their best to discourage the application of a fouling factor.
Another reason why fouling factor is not needed on PHE's is that they are completely cleanable (not welded plate types of course). Unlike a S&T which may have areas that are impossible to reach to clean, PHE's are designed to be able to be taken apart and cleaned, every square inch of them.
I would never allow a fouling factor to be added to a PHE that I had to be responsible for.
rmw
RE: Fouling Factors for PHE
But when you are evaluating a PHE working, against design, do you use the fouling factor?