Abstract
Heat exchangers using cooling water are designed with fouling resistance applicable to tubular equipment, in most cases TEMA recommended values. Plant experiences indicate that plate heat exchangers produce substantially lower fouling rates due to turbulence induced by the plate corrugations. Furthermore, plate exchangers are more severely penalized by fouling resistance than tubular exchangers because of the high heat transfer coefficients typical of plate exchangers. To supply reliable folding data to the designer, APV Company. Ltd. sponsored a research project to study fouling in plate exchangers with Heat Transfer Research. Inc. (HTRI). The test fluid was a typical, treated cooling-tower water. Results of these experiments, described in this paper, show that at typical operating conditions the fouling resistances for plate exchangers are substantially lower than those used for tubular equipment.
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