Numerical Investigation of a Pulse-Jet Filter Cleaning System Performance

Document Type : Research Article

Authors

Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

Abstract

In this study, numerical simulation of a pulse-jet filter cleaning system is conducted and its performance is investigated under pre-defined conditions. In the first step, 3D simulation of the system from a high pressure tank to the filter inlet is performed and the output is used as the input of second step. In the second step, simulation is performed for filters with inlet mass flow rates calculated from the previous step. To validate the model, the results are compared to experimental data showing acceptable agreement. The results show that regardless of the valve type, the cleaning pulse generates after 0.5 s and suddenly decreases afterward. No shock or choking is observed in the system. Another interesting result is the induced flow, generated after the nozzles, which increases the filter inlet mass flow rate. In addition, the axial distribution of the filter outlet flow is not uniform, degrading from inlet to outlet. Finally, a complete parametric study is performed to investigate the effect of the tank pressure on the pressure difference in the filter which is an important index in the cleaning performance analysis.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 51, Issue 6
January and February 2020
Pages 1455-1468

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