Computer simulation of hydraulic flow in a mixing device with a diaphragm of special design installed in it

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.100835

Keywords:

static mixer, computer simulation, pressure and velocity distribution diagram, turbulent dissipation

Abstract

The results of computer simulation of hydrodynamic flow were presented using the FlowVision software package (Moscow, Russian Federation). This program has enabled creation of hydrodynamic flow models using three types of mixers: a mixer with the proposed diaphragm of special design, a pipe mixer and an orifice mixer. The complete information on behavior of the processes was obtained taking into account design and technological parameters of the abovementioned types of mixers. Computer simulation of flow in mixers of various types made it possible to substantially shorten time for conducting studies and confirm the results of field experiments presented earlier by the authors [11].

As a result of the analysis of the data obtained in the computer simulation of motion of the flow of waste water with the reagent solution, the following can be distinguished: when using different types of mixers, the best results of intensive flow mixing were obtained by using a mixer with a diaphragm of a special design and an orifice mixer. It is evidenced by the diagrams of distribution of pressure and velocities in these mixers. However, when using an orifice mixer, one can notice intensive mixing only at the center of the flow, and zones were noticeable at the walls of the pipeline in which there was practically no vortex formation and mixing respectively. In the pipe mixer, only a small region could be noticed in an immediate vicinity of the point of injection of the coagulant solution. Pressure and velocity vary in this region but these parameters change insignificantly in the main flow. The obtained hydrodynamic models indicate that the proposed diaphragm of a special design provides more efficient mixing of wastewater with the reagent. Models for pipe and orifice mixers have shown worse results. The proposed diaphragm enabled mixing of wastewater with the reagent as fully and quickly as possible.

Author Biographies

Andrey Shevchenko, Prodeko-Elk Sp.zo.o. Strefowa str., 9, Elk, Poland, 19-300

Engineer

Tamara Shevchenko, O. M. Beketov National University of Urban Economy in Kharkiv Marshal Bazhanov str., 17, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Water Supply, Sanitation and Clean Water

References

  1. Mixing of coagulants with water. Pology chemical plant "Coagulant". Available at: http://coagulant-producer.com/
  2. Shevchenko, T. A., Shevchenko, A. A. (2015). The Intensification of the flotation unit in a wastewater treatment of dairy industry. Visnyk Odes'koyi derzhavnoyi akademiyi budivnytstva ta arkhitektury, 59, 150–155.
  3. Babatola, J. O., Oladepo, K. T., Lukman, S., Olarinoye, N. O., Oke, I. A. (2011). Failure Analysis of a Dissolved Air Flotation Treatment Plant in a Dairy Industry. Journal of Failure Analysis and Prevention, 11 (2), 110–122. doi: 10.1007/s11668-010-9430-z
  4. Wastewater treatment in the dairy processing industry – recovering energy using anaerobic technology. Available at: http://envirochemie.com/cms/upload/downloads-en/fachbeitraege/Whitepaper_Wastewater_treatment_in_the_dairy_processing_industry_.pdf
  5. Boruszko, D., Dabrowski, W. (2014). Research on the Effectiveness of the Flotation Process and Properties of Flotation Sludge from Dairy Wastewater Pretreatment. Inzynieria i Ochrona Srodowiska, 17 (2), 269–280.
  6. Alekseev, K. A., Muhametzyanova, A. G., Klinov, A. V., Farahov, M. I., Kirichenko, S. M. (2013). Experimental study of the hydraulic characteristics of flow static mixer Packed. Vestnik Kazanskogo tekhnologicheskogo universiteta, 16 (7), 212–216.
  7. Mixing and Reaction Technology. Pace Setting Technology. Available at: http://www.sulzer.com/lv/-/media/Documents/ProductsAndServices/Mixpac_Cartridges_Applications_Static_Mixers/Static_Mixers/Brochures/Mixing_and_Reaction_Technology_e_23270640.pdf
  8. Laptev, A. G., Farakhov, M. I., Todorovska, O. G. (2012). The Efficiency of turbulent mixing of media in a Packed flow-through mixers. Electronic scientific journal "Oil and gas business", 4, 387–408.
  9. Tishin, O. A., Kharitonov, V. N. (2012). Analysis of the mixer in the "FlowVisison". News of Volgograd state technical University, 1 (5), 80–83.
  10. FlowVision. User's manual (Version 3.09.0.) (2015). Moscow: LLC "TESIS", 1294.
  11. Shevchenko, T. A., Shevchenko, A. A. (2016). Experimental investigation of intensification of the process of dissolved-air flotation in wastewater treatment of milk processing enterprises. Eastern-European Journal of Enterprise Technologies, 1 (6 (79)), 4–12. doi: 10.15587/1729-4061.2016.60121
  12. Shevchenko, A. A. et. al. (2014). Pat. No. 147134. Device for coagulation waste liquid. declareted: 10.07.2014; published: 26.09.2014.

Downloads

Published

2017-06-19

How to Cite

Shevchenko, A., & Shevchenko, T. (2017). Computer simulation of hydraulic flow in a mixing device with a diaphragm of special design installed in it. Eastern-European Journal of Enterprise Technologies, 3(7 (87), 33–39. https://doi.org/10.15587/1729-4061.2017.100835

Issue

Vol. 3 No. 7 (87) (2017): Applied mechanics

Section

Applied mechanics

License

Copyright (c) 2017 Andrey Shevchenko, Tamara Shevchenko

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.