10.1007/s40095-021-00385-1

Analytical studies on deposition and entrainment present in the Venturi nozzle two-phase flow

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  • Oktawia Dolna*1,
  • Jarosław Mikielewicz1,
  • Paulina Rolka1,
  1. Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk, PL
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Published in Issue 2021-02-17

How to Cite

Dolna, O., Mikielewicz, J., & Rolka, P. (2021). Analytical studies on deposition and entrainment present in the Venturi nozzle two-phase flow. International Journal of Energy and Environmental Engineering, 12(3 (September 2021). https://doi.org/10.1007/s40095-021-00385-1
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Abstract

Abstract The syngas purification is a basic problem in the gas production process through the biomass gasification. This issue is important due to the use of the Venturi scrubbers in the syngas cleaning process. As it is commonly known, syngas is an alternative for the coal and using syngas instead of the coal leads to ‘clean energy’ generation. The paper concerns the analytical research studies on two-phase fluid flow pattern in Venturi’s throat. The uniform coverage of Venturi’s cross-section with small droplets plays a significant role in the dust particles collection and chemicals removal as Venturi’s cleaning efficiency mostly depends on this operation parameter. Therefore, the analysis of the two-phase fluid flow with respect to a droplet deposition and entrainment was carried out. Based on these research studies, it is possible to determine the variation of the liquid superficial velocity in the core of the flow and within the liquid wall film, the length at which the droplet entrainment starts to occur, the liquid fraction variation with Venturi’s throat length and diameter. The obtained analytical model, which is introduced in the paper, was validated with the use of the experimental data available in the literature.

Keywords

  • Venturi scrubber,
  • Droplet,
  • Syngas purification,
  • Two-phase flow
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