Effects of layers and holes on performance of wire mesh packing

Abstract

To investigate the effect of layer number and hole on the performance of structured packing, pressure drop, flooding velocity, and mass transfer efficiency of the BXH-and DM I-type structured packing are measured. The experimental results show that, compared with the BX-type structured packing, the DM I-type packing has a higher pressure drop and mass transfer efficiency with lower flooding velocity, while BXH type packing has a lower pressure drop and mass transfer efficiency with higher flooding velocity. This indicates that the increase of the mesh layer can improve mass transfer efficiency of structured packing but reduce its capacity. On the contrary, the surface hole of the structured packing can improve the capacity but reduce the mass transfer efficiency. Experimental data on the influence of holes and microtexture on the liquid spreading over the surface of single cells of the structured aluminum packing are analyzed.

Numerical simulation on flow behavior of twin‐liquid films over a vertical plate with an open window

“…For random or structured packings, perforating has been widely used . Many researchers have mentioned the improvement of flow flux, liquid distribution, effective area for mass transfer, and so on after perforating . But to the best of the authors' knowledge, little work has been done on film flow inside the holes.…”

Characterization of Novel Carbon Foam Corrugated Structured Packings with Varied Corrugation Angle

“…All experiments were carried out using an orifice trough the distributor with eight symmetrically arranged drip tubes, corresponding to 113 drip points per square meter of column cross‐sectional area. The distances between the drip tubes and the top of the packing were approximately 20 mm in all cases .…”

The Features of the Film Flow of Liquid Nitrogen over the Corrugated Plates with Combined Microtexture

“…Несмотря на широкое использование на практике данных режимов в контактных аппаратах, закономерности гидродинамики и тепломассообмена при таких течениях, выявление которых служит основой для разработки как конструктивных, так и технологических методов интенсификации процессов разделения смесей, изучены весьма слабо. Исследования особенностей течения пленок различных жидкостей по структурным элементам регулярных насадок интенсивно развиваются в последнее время [5][6][7][8][9][10][11][12][13][14][15][16]. Строгое теоретическое исследование, моделирование таких течений и процессов весьма затруднено и не является на сегодня решенной задачей в связи с чрезвычайно высокой сложностью их описания [11] Целью данной работы является экспериментальное изучение особенностей пленочного течения азота по единичным элементам структурированных насадок с комбинированным направлением микротектуры при различной степени орошения.…”