Nye tray vs sieve tray: A comparison based on computational fluid dynamics and tray efficiency,The Canadian Journal of Chemical Engineering

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Nye tray vs sieve tray: A comparison based on computational fluid dynamics and tray efficiency
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2020-12-22 , DOI: 10.1002/cjce.24008
Sadegh Abbasnia ₁ , Zarrin Nasri ₁ , Vali Shafieyoun ₂ , Mohammad Golzarijalal ₃

Affiliation

Nye and sieve trays were hydrodynamically simulated and compared. The simulations were performed in a Eulerian‐Eulerian framework under unsteady (transient) conditions at industrial scale. Conducted on an air‐water system, the simulations included three dimensions and two phases. The velocity distribution across the tray, the height of clear liquid, the froth height, and the pressure drop were investigated and compared with experimental data. Péclet number was calculated using hydrodynamic and geometric parameters. The tray efficiencies were also predicted to further compare the two trays. The results showed that the liquid flow was steadier on the Nye tray rather than the sieve tray, possibly because of the special structure of the liquid and gas inlets for the Nye tray.

中文翻译：

筛板与筛板：基于计算流体动力学和筛板效率的比较

流体动力学模拟和比较了筛板和筛板。在工业规模的不稳定（瞬态）条件下，在欧拉-欧拉框架下进行了模拟。在空气-水系统上进行的模拟包括三个维度和两个阶段。研究了整个塔盘上的速度分布，透明液体的高度，泡沫高度和压降，并与实验数据进行了比较。佩克莱特数是使用流体力学和几何参数计算的。还预测了塔盘效率，以进一步比较两个塔盘。结果表明，液体流在Nye托盘而不是筛板托盘上更稳定，这可能是由于Nye托盘的液体和气体入口的特殊结构所致。

更新日期：2020-12-22

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