Development of physico-mathematical model and justification of parameters of device for air cooling by dropping water

Authors

  • Роман Александрович Тишин Makeyevka Research Institute for safety in the mining industry St. Likhacheva, 60, Makeyevka, Donetsk region., Ukraine, 86108, Ukraine
  • Игорь Александрович Толкунов Kharkov National University of civil protection of Ukraine Str. Chernishevskaya, 94, Kharkov, Ukraine, 61023, Ukraine https://orcid.org/0000-0001-5129-3120

DOI:

https://doi.org/10.15587/1729-4061.2015.36472

Keywords:

air cooling, water droplets, ejector, diffuser, confuser, air-droplet flow

Abstract

The paper deals with solving actual scientific and technical task to ensure safe working conditions for personnel in workplaces of industries with high temperatures (over 300 °C), such as deep mine workings, blast furnace shops, etc., which lies in a local air cooling without using special conditioners, where the greatest effect is achieved in the processes of hydrodynamic irrigation of warm air by dropping water.

It is shown that the measures, aimed at reducing the air temperature of working areas in mine workings involve air cooling by forced ventilation and air conditioning systems, which do not fully meet the required quality parameters. This has a negative effect on the overall condition of personnel and enterprise efficiency as a whole, and causes the risk of diseases from overheating respiratory organs and dehydration. Solving the problem of physico-mathematical modeling of the dispersed water impact on the air and heat exchange occurring between droplets and air is urgent for improving the irrigation-based mine air cooling effect.

The design of the device for the hydrodynamic air cooling by dropping water based on diffuser-confuser pipe was developed, and relations that allow to determine the structural and operational parameters were defined. The analytical relations, the appropriateness of which was experimentally confirmed reveal the mechanism of cooling action of water droplets on the air, enable the analytical determination of the thermodynamic characteristics of the flow, which affect the heat transfer efficiency, and justification of means, required for this process.

Using the developed device in workplaces of industries with high temperatures will ensure the implementation of labor protection requirements on air quality in working areas, as well as high efficiency of air cooling measures, which is caused by the possibility of engineering calculations when designing the proposed devices. 

Author Biographies

Роман Александрович Тишин, Makeyevka Research Institute for safety in the mining industry St. Likhacheva, 60, Makeyevka, Donetsk region., Ukraine, 86108

Postgraduate student 

Игорь Александрович Толкунов, Kharkov National University of civil protection of Ukraine Str. Chernishevskaya, 94, Kharkov, Ukraine, 61023

Deputy Chief of the Department

Department of pyrotechnic and special training

References

  1. Fist, A. P., Shestozub, A. B. (2007). Refinement equations of the characteristics of jet devices. Applied Fluid Mechanics. Odessa. Journal, 4, 73–76.
  2. Kogut, V. E., Butovsky, E. D., Hmelnyuk, M. G. (2013). Cooling system for condensation of hydrocarbons in the stream. «Refrigeration and technology», 5, 123–129.
  3. Lapshin, A. E., Oshmyanskyy, I. B., Lapshin, A. A. (2008). Improving working conditions in the deep mines of iron. Journal of NTU «KPI». Series «Mining», 17, 144–150.
  4. Pivnyak, G. G., Boiko, V. A. (2012). Ways of solving the problem of normalization of the thermal conditions in mines deep mines of Donbass. Mining Journal, 8, 15–18.
  5. Kogut, V. E., Butovsky, E. D., Nosenko, N. G. (2013). Design termokondensatora ejector. Odessa: National Academy of Food Technologies, 45–48.
  6. Lapshin, A. A. (2013). Using mine water for cooling of mine air nozzle. Krivoy Rog: State higher education institution or university «National University of Krivoy Rog», 32–36.
  7. Verma, Y. (1984). Control of mine climat. Mining Eng, 186.
  8. Studensky, R. (1980). Temperatura powietrsa a wypadkowosc. Prseglad gornicay, 12, 606–610.
  9. Vocs, J. (1981). Neue Forschungsergebnisse aur dem Gebiet «Grabenklima». Glückauf-Forschungshefte, 6, 241–249.
  10. Pozdnyakov, G. A., Martyniuk, G. K. (1983). Theory and Practice of dust control in the mechanized development faces. Moscow: Nauka, 126.
  11. Yshida, M. (1999). Efficiency, Costs, Optimization, Simulation and Enoironmental Aspects of Energy System. Proc. of Cont. Ekos’99. Tokyo: Japan, 145–146.
  12. Le Goff, P. (1998). Optimizations exergetique, economique on ecologique des thermofrigopompes. Proc. of Seminare «EUROTHERM». Nancy: France, 3–10.
  13. Shapiro, V. E. Systems near a critical point under multiplicative noise and the concept of effective potential [Text] / V. E. Shapiro // Physical Review E. – 1993. – Vol. 48, Issue 1. – P. 109–120. doi: 10.1103/physreve.48.109
  14. Van Kampen, N. G. (1990). Stochastic Processes in Physics and Chemistry. M.: Graduate School, 231.
  15. Vol'kenshtein, M. V. (1986). Entropy and information. M.: Science, 192.
  16. Altena, H. (1984). Kritische Fragen der Strebklimatisierung. Glückauf, 12, 760–763.
  17. Ishchuk, I. G. (1989). Prediction dusty mine atmosphere and justification of the complex effective ways and means of dedusting stopes of coal mines, 421.
  18. Zhuravlev, V. P., Demicheva, E. F., Spirin, L. A. (1988). Methods of dealing with coal dust. Rostov: Rostov University Publishing, 144.
  19. Gogo, V. B. (1999). Selection of parameters converging cone-riser gas lift. Mining electrical engineering and automation. Journal, 2 (61), 177–180.

Downloads

Published

2015-02-23

How to Cite

Тишин, Р. А., & Толкунов, И. А. (2015). Development of physico-mathematical model and justification of parameters of device for air cooling by dropping water. Eastern-European Journal of Enterprise Technologies, 1(8(73), 48–54. https://doi.org/10.15587/1729-4061.2015.36472

Issue

Vol. 1 No. 8(73) (2015): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

License

Copyright (c) 2015 Ігор Олександрович Толкунов, Роман Александрович Тишин

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.