Numerical investigation of the effects of geometry variation on the flow pattern and performance of Gas-Particle cyclones

Authors

1 assistant /university azad islamic

2 Assistant phd

3 Department of Mechanics, Semnan University, Semnan, Iran

Abstract

Despite the fact that gas cyclones have simple geometry, there is a complex flow with high anisotropicity. Hence, In order to simulate such flow a good physical understanding is needed. In addition to high rotation intensity, there is also a high rate of stress-strain, so RMS turbulent model was used to study the gas phase behavior and Eulerian-Lagrangian statistical method was applied to evaluate the performance of calcium carbonate particles. Following results were obtained through the studying of separation part height effects on cyclone: With increase in height of the separation part of the cyclone for both cases, it is observed that the tangential velocity declines. Moreover, it decreases the Vertex Rankin area. On the other hand, it can be concluded that, the increase of this geometric parameter will rise the downstream flow rate in axial velocity. Therefore, the increase in height of the cylindrical cyclone results in pressure drop increment and improve the performance of the cyclone.

Keywords

Main Subjects

References

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Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 19, Issue 4 - Serial Number 49
Fluid Mechanics and Heat Transfer
February 2017
Pages 101-122

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History

  • Receive Date: 23 April 2017
  • Revise Date: 10 July 2017
  • Accept Date: 26 February 2018

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