Types Of Fouling In Heat Exchangers
What is fouling in Heat Exchangers? Fouling is the accumulation of unwanted material on the tube surfaces of the heat exchanger . After a period of operation the heat transfer surface of heat exchanger may become coated with various deposits presents in flow system. This coating represents an additional resistance to heat flow and thus decreased in performance. Fouling factors are best determined from experience with similar units in the same or similar service. When such information is not available, recourse may be had to publish data. The most comprehensive tabulation of fouling factors is the one developed by TEMA , which is available in Refs. [1, 2]. Fouling can occur by a number of mechanisms operating either alone or in combination. These include: Corrosion: Corrosion products such as rust can gradually build up on tube walls, resulting in reduced heat transmission and eventual tube...