Vortex Tray for Adiabatic and Nonadiabatic Fractionation

Войнов, Н. А.; Земцов, Д. А.; Богаткова, А. В.; Deryagina, N. V.

doi:10.1007/s10556-021-00921-0

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During this research, experiments and numerical simulations were adopted (Abedi-Koupai et al, 2020;Vishweshwaran and Sujatha, 2021;Voinov et al, 2021), triaxial shear tests were conducted under varying water contents and root contents of soil containing roots, as well as testing on the anti-scour capability of slopes under varying slope protection vegetations. The soil moisture sensor and matric suction meter were used to monitor the change of matric suction in the middle slope and slope foot under varying rainfall intensities in order to analyze the slope surface erosion at varying rainfall timings (Zhang Y. et al, 2020;Likitlersuang et al, 2020;Wang et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Study on erosion and stability of the ecological slope

Tao

Lei²,

Gong³

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

Rainfall is the main influencing factor causing slope erosion, landslide, and instability in loess; thus, it is vital to comprehend the process of rainfall erosion on various slope surfaces and water penetration inside the slope. In this paper, the loess sample is from Heifangtai in Gansu Province, and triaxial shear tests were conducted on loess with roots under varying water contents to evaluate the slope-reinforcing impact of roots. The slope surface erosion process was analyzed using a soil moisture sensor and matric suction meter to monitor the variation of matric suction in the middle slope and slope foot in response to varying precipitation levels. The numerical simulation approach is utilized to analyze the fluctuation of slope stability under the effect of varying rainfall intensities and humid heat, and the analytical solution of the safety factor is compared to the model solution. The results indicate that the shortest generation time for bare slope runoff is 6 min, whereas the greatest generation time for the Bermuda grass slope is 12 min; the shorter the period, the less water penetration and the simpler it is to reach the slope erosion stage. The slope’s rise increases runoff velocity, strengthening water resistance on the slope surface. When the test slope is 30°, the maximum mass of scouring sediment on the bare slope is 15.2 g from 24 to 36 min, compared to 14.7 g from 24 to 36 min when the test slope is 60°. The amount of scouring reduces as the slope increases. The slope safety factor declined from 3.51 to 2.84 after 24 h of heavy rain, and the loss rate accelerated as the rainfall intensity increased.

show abstract

Section: Methodsmentioning

confidence: 99%

Study on erosion and stability of the ecological slope

Tao

Lei²,

Gong³

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

Cross-Current Packed Grid Tray for a Product-Concentrating Column

Voinov,

Bogatkova,

Zemtsov

et al. 2023

Chem Petrol Eng

View full text Add to dashboard Cite

Experimental study of the flow structure in packed tray-type column extractors

Berengarten,

Kozin

2022

Vestn. Voronež. gos. univ. inž. tehnol.

View full text Add to dashboard Cite

Liquid extraction is a well-known separation process that has been widely used in the chemical industry for many years, for example, in the selective purification of oil fractions, in the purification of liquefied gases from hydrogen sulfide, in the production of petrochemicals, in the recovery of metals, in nuclear fusion, in food and pharmaceutical industry. On-going elaborations aimed at engineering solution search in order to improve mass-transfer processes are in progress on a permanent basis. Combination of trays and packing in the fractionator results in stream disequilibrium which leads to worse hydrodynamic conditions in the splitter (extraction, rectifier tower and etc.) and causes significant difficulties in stable operating process maintaining. The study objective is to review the structure of stream structures in the extraction tower via examples of trays and packing combinations since the mentioned contact devices are widely used in industry but they are conventionally applied as individual contact devices and not in combination. Combination of the above contact devices may earn a supplementary synergetic effect. In the course of the experiment it was found out and described in graphic format that stream disequilibrium could be eliminated and hydrodynamic conditions in the extraction tower could be improved via extra stream supply in the tower shell. Research will be useful for the development of new designs of column equipment, for example, extraction. In order to expand the experiment in various hydrodynamic modes, it is proposed to simulate the experiment using, for example, the Solid Works 2020 software package and, in particular, one of its add-ons - Flow Simulation.

show abstract

Vortex Tray for Adiabatic and Nonadiabatic Fractionation

Cited by 3 publications

References 10 publications

Study on erosion and stability of the ecological slope

Study on erosion and stability of the ecological slope

Cross-Current Packed Grid Tray for a Product-Concentrating Column

Experimental study of the flow structure in packed tray-type column extractors

Contact Info

Product

Resources

About