Fouling is a major problem in heat transfer. This can be solved by installing self-cleaning fluidized bed heat exchangers which design meets the condition: Rate of removal of fouling deposits by the scouring action of the fluidized particles exceeds the rate of precipitation of fouling deposits.
The application of a fluidized bed in heat exchangers that are prone to fouling provides an on-line and in-line continuous cleaning mechanism, where the cleaning particles are carried through the tubes. The particles impart a mild scraping effect on the heat exchanger tubes thereby removing any deposit at an early stage of formation. In this way severe fouling of shell and tube heat exchangers is prevented.
Either new or revamped heat exchanger solutions with a self-cleaning configuration can be realized in many types of industries.