Many types of monitors are used in cooling systems to determine fouling rates. Each type has advantages and disadvantages. This is a review of the types of monitors commercially available. Basic heat transfer theory and various calculations used to determine fouling rates are reviewed. Also discussed are uses and benefits, and guidelines for choosing a fouling monitor.
85-02: Guidelines for Selection and Use of On-line Fouling Monitors
William E. Moore & George F. Hays, CTI Water Treatment Committee