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Experimental and numerical investigation on the gas–liquid separation performance of a novel vane separator with grooves
Chemical Engineering Research and Design ( IF 3.9 ) Pub Date : 2022-01-03 , DOI: 10.1016/j.cherd.2021.12.049
Jiarong Wang 1 , Zhongli Ji 1 , Zhen Liu 1
Affiliation  

A novel vane separator with grooves for use in natural gas purification processes was proposed to improve the fine droplet removal efficiency (<20 μm). In this study, an experimental approach and numerical method were combined to investigate the effects of geometric parameters (groove position, groove height and plate spacing) and operating conditions (inlet gas velocity and droplet size) on the separation efficiency, pressure drop and quality factor. The numerical results indicated that the groove configurations have a great influence on the airflow velocity distribution pattern and droplet trajectories, leading to changes in the separation efficiency and pressure drop. Increasing the dimensionless groove height K2 and decreasing the groove position K1 can remarkably increase the possibility of droplets hitting the wall, which results in a higher separation efficiency. In addition, the re-entrainment mechanism is suppressed effectively by applying the grooves when inlet gas velocity exceeds a critical value. Although the pressure drop also inevitably increases, but the proposal is acceptable for industrial applications. Therefore, using the grooves as enhanced structures can be a feasible means to develop optimal vane separators.



中文翻译:

新型带槽叶片分离器气液分离性能的实验与数值研究

提出了一种用于天然气净化过程的新型带凹槽的叶片分离器,以提高细液滴去除效率(<20 μm)。在这项研究中,将实验方法和数值方法相结合,研究了几何参数(凹槽位置、凹槽高度和板间距)和操作条件(入口气体速度和液滴尺寸)对分离效率、压降和品质因数的影响。 . 数值结果表明,凹槽配置对气流速度分布模式和液滴轨迹有很大影响,导致分离效率和压降发生变化。增加无量纲槽高K 2和减小槽位置K 1可以显着增加液滴撞击壁的可能性,从而提高分离效率。此外,当进气速度超过临界值时,通过应用凹槽可以有效地抑制再夹带机制。虽然压降也不可避免地增加,但该建议对于工业应用来说是可以接受的。因此,使用凹槽作为增强结构可能是开发最佳叶片分离器的可行手段。

更新日期:2022-01-03
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