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This paper aims to develop a cost-efficient simulation method for droplet atomization in wet electrostatic precipitator. Under the combined effects of multiple nozzles, the computational particle-fluid dynamics (CPFD) method was employed to simulate the atomization process, because it can settle complex particle flow problems with a small number of grids. Specifically, the droplet pattern, flue gas speed distribution and flue gas pressure distribution in the precipitator were investigated at the inlet gas speeds of 1m/s, 2m/s and 3.5m/s. It is found that the droplet ejection changes the flow of the flue gas; the low inlet speed facilitates the formation of the liquid film; the greater the inlet speed, the closer the peak position of flue gas speed moves towards the top. The results shed new light on the optimization of wet-process electric dedusting.
wet electrostatic precipitator, computational particle-fluid dynamics (CPFD), numerical simulation, droplet atomization
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