Abstract
A semi-theoretical model is developed to predict liquid-side particulate fouling in enhanced tubes. The model predicts fouling behavior for a wide range of particle size distribution and foulant concentration. In this study, the deposition model uses a coefficient, K D , which includes two effects, (a) Brownian diffusion in the sticking (or wall) region and (b) momentum transfer to the sticking region. The sticking probability and bond strength factor are defined by empirical correlations as a function of particle size, concentration, and shear stress. The fouling data used in the correlations were taken for concentrations between 2000 and 800 p.p.m. for the particle sizes of 2, 4 and 16 μm. The average fluid velocity in the tube was varied between 1.22 and 2.44 m s −1. The theoretical predictions are in general in good agreement with the experimental data.
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