Atomization and Mixing Characteristics of Swirl‐Flow Atomizers in the Refining Industry

Jin, Haozhe; Xu, Henghui; Yu, Chenyang; Liu, Xiaofei; Wang, Chao; Ou, Guofu

doi:10.1002/ceat.202000063

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…For spherical particles, when the Reynolds number is within a certain range,

adopts the following expression [ 17 ]:

where C D is the drag coefficient.…”

Section: Simulation Scheme Of Flavoring Equipmentmentioning

confidence: 99%

“…Therefore, some scholars have adopted numerical evaluation to analyze atomization characteristics. For example, Jin et al [ 17 ] studied the liquid film-breaking process and atomization characteristics of swirl atomizers with numerical simulations. The results showed that increases in the gas flow directly affected the mixing characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Measuring Liquid Droplet Size in Two-Phase Nozzle Flow Employing Numerical and Experimental Analyses

et al. 2022

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The flavoring process ensures the quality of cigarettes by endowing them with special tastes. In this process, the flavoring liquid is atomized into particles by a nozzle and mixed with the tobacco in a rotating drum. The particle size of the flavoring liquid has great influence on the atomization effect; however, limited research has addressed the quantitation of the liquid particle size in two-phase nozzle flow. To bridge this research gap, the authors of this study employed numerical and experimental techniques to explore the quantitative analysis of particle size. First, a simulation model for the flavoring nozzle was established to investigate the atomization effect under different ejection pressures. Then, an experimental test is carried out to compare the test results with the simulation results. Lastly, the influencing factors of liquid particle size in two-phase nozzle flow were analyzed to quantify particle size. The analysis results demonstrated that there was a cubic correction relationship between the simulation and experiment particle size. The findings of this study may provide a reliable reference when evaluating the atomization effect of flavoring nozzles.

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“…For spherical particles, when the Reynolds number is within a certain range,

adopts the following expression [ 17 ]:

where C D is the drag coefficient.…”

Section: Simulation Scheme Of Flavoring Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measuring Liquid Droplet Size in Two-Phase Nozzle Flow Employing Numerical and Experimental Analyses

et al. 2022

View full text Add to dashboard Cite

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Numerical investigation of corrosive gases absorption process by water injection in hydrogenation reaction effluent system

Jin,

Qin,

Chen

et al. 2024

International Journal of Chemical Reactor Engineering

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Water injection for absorbing corrosive gases NH3, HCl and H2S is a widely employed method to mitigate the risk of ammonium salt corrosion in the hydrogenation units. To ensure the efficient prevention of ammonium salt corrosion, a numerical model integrating the hydrodynamics of gas–liquid and the reaction of interphase mass transfer was built based on Euler–Lagrange method in this work. The flow and mass transfer characteristics of complex multi-component system in water injection pipeline were investigated, and the correlation between process operating conditions and gas removal performance was analyzed. The results reveal that the removal efficiencies of corrosive gases in pipeline are influenced by the characteristics of gas–liquid flow and mass transfer, with HCl showing higher removal efficiency compared to NH3 and H2S. Furthermore, the increasing flow rate of water injection, the reducing corrosive medium content and the decreasing droplet diameter have a positive impact on the removal efficiencies of corrosive gases, while the impact of gas-flow velocity on the removal efficiencies of corrosive gases primarily depends on the residence time of droplets. These results have important theoretical value and engineering guiding significance for intensifying the process of water injection in hydrogenation units.

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Atomization and Mixing Characteristics of Swirl‐Flow Atomizers in the Refining Industry

Cited by 2 publications

References 28 publications

Measuring Liquid Droplet Size in Two-Phase Nozzle Flow Employing Numerical and Experimental Analyses

Measuring Liquid Droplet Size in Two-Phase Nozzle Flow Employing Numerical and Experimental Analyses

Numerical investigation of corrosive gases absorption process by water injection in hydrogenation reaction effluent system

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