How should the fouling coefficient on the film-scraping side of a film-scraping evaporator be selected? Thank you!
Thread Content
How should the fouling coefficient on the film-scraping side of a film-scraping evaporator be selected? Can it be selected according to the shell and tube standard (GB151)? Something doesn’t seem right. Thank you!
Did the original poster not understand what you meant?
Is it related to your working fluid? Is it sludge, jam, or something else? Generally, the water flow rate isn’t high, so a thermal resistance of 0.0005 m^2·K/W is sufficient.
This fouling coefficient is already quite high in shell-and-tube exchangers; is the fouling coefficient for scraped-sheet exchangers that high as well?
This evaporator can be divided into a film-scraping side and a jacket side; similar to shell-and-tube evaporators, it should also have fouling coefficients for both sides. I just don’t understand how to obtain the value.