The comparison between integral and local calculation methods on the simulation of crystallization fouling

A local calculation method, based on the crystallization fouling model, is proposed to simulate the fouling process. Calcium carbonate crystallization fouling process occurring in a rectangular channel, with and without a vortex generator, is simulated by the integral and local calculation methods. The local calculation method is verified against the experimental data from the relevant literature. Fouling resistance obtained via local calculation method has shown stronger correlation with the experimental data as opposed to the integral calculation method. With an increase in the complexity of the channel structure, a greater distinction between the results obtained by the two methods is observed. The local calculation method has shown an advantage by providing the local fouling information, whereas the integral calculation method was unable to do so.

Automated summary

A local calculation method based on the crystallization fouling model is proposed to simulate the fouling process, and it is validated against experimental data. The local calculation method shows stronger correlation with experimental data in predicting fouling resistance, especially in complex channel structures. This method has an advantage in providing local fouling information compared to the integral calculation method.