Examining a device for air distribution by the interaction of counter non-coaxial jets under alternating mode

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.96774

Keywords:

air distribution, counter non-coaxial flat jets, velocity, excess temperature, alternating mode

Abstract

The research deals with the solution of the relevant problem of increasing efficiency of air distribution by the interaction of counter non-coaxial jets for providing the standard parameters of the air in industrial premises. The mathematical model of air supply by the interaction of counter non-coaxial jets in these premises was improved. It was shown that to achieve maximum efficiency of air disctribution, it is necessary to supply the air by jets that attenuate rapidly even before entering the working area. We developed and explored the structure of the air distributor with the interaction of the counter non-coaxial jets, which provides intensive attenuation of velocity and excess temperature of the resulting airflow. The specific feature of this structure is the possibility to supply two non-coaxial inflowing jets.

In this way, intensive mixing of inflowing jets with the surrounding air is provided and alternating mode is maintained. The graphic dependences were plotted and the theoretical dependences based on the conducted experimental studies were derived, which may be used in further engineering calculations. The authors developed and protected by the patent of Ukraine [12] the design of air distributor for the air supply by the interaction of the counter non-coaxial jets, as well as for supplying inflowing jets in the alternating mode. The cost-effectiveness of using the air distributor with the interaction of counter non-coaxial jets was shown, compared with alternative options, and specific indicators of the air distribution efficiency were given.

Author Biographies

Vadim Коrbut, Kyiv National University of construction and architecture Povitroflotskyi ave., 31, Kyiv, Ukraine, 03037

Doctor of Technical Sciences, Associate Professor

Department of Heat Supply and Ventilation

Orest Voznyak, National University "Lviv Polytechnic" S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Heat and Gas Supply and Ventilation

Khrystyna Myroniuk, National University "Lviv Polytechnic" S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Heat and Gas Supply and Ventilation

Iryna Sukholova, S. Bandery str., 12, Lviv, Ukraine, 79013 Е-mail: isukholova@gmail.com

PhD, Assistant

Department of Heat and Gas Supply and Ventilation

Peter Kapalo, Technical University of Kosice Vysokoskolska str., 4, Kosice, Slovakia, 04200

PhD, Engineer

Department of Technical Building Equipment

References

  1. Kapalo, P., Vilcekova, S., Voznyak, O. (2014). Using experimental measurements the concentrations of carbon dioxide for determining the intensity of ventilation in the rooms. Chemical Engineering Transactions, 39, 1789–1794.
  2. Vozniak, O. T., Sukholova, I. Ie., Myroniuk, Kh. V. (2015). Research of device for air distribution with swirl and spread air jets at variable mode. Eastern-European Journal of Enterprise Technologies, 6 (7 (78)), 15–23. doi: 10.15587/1729-4061.2015.56235
  3. Korbut, V., Voznyak, O., Kapalo, P., Sukholova, I. (2016). Modelovanie prudov vzduchu v miestnosti v pulzujucom rezime a jeho kvalita. Plynar-vodar-kurenar, 1, 19–21.
  4. Zhukovsky, S., Klymenko, H. (2009). Experimental and analytical research of pressure effects inside the sectional source air distributor. Zeszyty naukowe Politechniki Rzeszowskiej, 266, 151–157.
  5. Lee, K., Jiang, Z., Chen, Q. (2009). Air distribution effectiveness with stratified air distribution systems. ASHRAE Transactions, 115 (2), 1–16. Available at: https://engineering.purdue.edu/~yanchen/paper/2009-9.pdf
  6. Zhang, Z., Zhai, J. Z., Chen, Q. (2007). Evaluation of various CFD models in predicting room airflow and turbulence. Roomvent 2007: 10th International Conference on Air Distribution in Rooms. Helsinki.
  7. Lee, H.-H. (2010). Finite Element Simulations with ANSYS Workbench 12. Schroff development corporation, 589.
  8. Voznyak, O., Myroniuk, K., Sukholova, I. (2011). Energy saving at creation of dynamic indoor climate in a room. Current issues of Civil and Environmental Engineering in Kosice, Lviv and Rzeszow: XIII international scientific conference. Kosice.
  9. Naumov, A. L., Kapko, D. V. (2012). Ventilatsiia s peremennym raskhodom vozdukha dlia ofisnykh zdanyi. AVOK, 8, 16–21. Available at: http://www.abok.ru/for_spec/articles.php?nid=5395
  10. Malhyn, Yu. V. (2009). Sozdanye effektyvnoho dynamycheskoho mykroklymata v pomeshchenyy. Ynzhenernye systemy. AVOK-Severo-Zapad, 3 (41), 42–46.
  11. Dovhaliuk, V. B., Mileikovskyi, V. O. (2013). Analitychni doslidzhennia makrostruktury strumynnykh techii dlia rozrakhunku enerhoefektyvnykh system povitrorozpodilennia. Enerhoefektyvnist v budivnytstvi ta arkhitekturi, 4, 73–81.
  12. Voznyak, O., Koval'chuk, A., Myroniuk, Kh. (2006). Pat. No. 16828 UA. Povitrorozpodil'nyk [The device for air distribution]. MPK7 F24F 13/06. No. 200602951; declareted: 20.03.2006; published: 15.08.2006, Bul. No. 8, 2.
  13. Allmaras, S. R., Johnson, F. T., Spalart, P. R. (2012). Modifications and clarifications for the implementation of the spalart-allmaras turbulence model. ICCFD7-1902: Seventh International Conferenceon Computational Fluid Dynamics. Big Island, Hawaii.
  14. Mileikovskyi, V. (2012). Geometrical Modelling of the Jet Boundary Layer. 3rd International Scientific Conference moNGeometrija 2012, Serbia, Novi Sad. Novi Sad, 189.
  15. Zhelykh, V., Kozak, C., Savchenko, O. (2016). Using of thermosiphon solar collector in an air heating system of passive house. Pollack Periodica, 11 (2), 125–133. doi: 10.1556/606.2016.11.2.11

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Published

2017-04-29

How to Cite

Коrbut V., Voznyak, O., Myroniuk, K., Sukholova, I., & Kapalo, P. (2017). Examining a device for air distribution by the interaction of counter non-coaxial jets under alternating mode. Eastern-European Journal of Enterprise Technologies, 2(8 (86), 30–38. https://doi.org/10.15587/1729-4061.2017.96774

Issue

Vol. 2 No. 8 (86) (2017): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2017 Vadim Коrbut, Orest Voznyak, Khrystyna Myroniuk, Iryna Sukholova, Peter Kapalo

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