Research into the impact of structural features of combustion chamber in energy-technological units on their operational efficiency

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.143316

Keywords:

combustion chamber, aerodynamics, flat flame burner, tunnel furnace, temperature of combustion products

Abstract

The experimental studies of the influence of the degree of masonry development (geometry) and aerodynamics of the combustion chambers (circuits of combustion products removal) on the energy-technological indicators of the processes in the system gas-solid (in combustion chambers) were carried out.

The experimental research into the influence of geometry and aerodynamics of the combustion chamber on the energy-technological indicators in the system gas – solid body was conducted at the industrial large-scale fire bench.

It was shown that a decrease in the height of the working space of the combustion chamber, equipped with flat flame burners, affects the use of fuel due to heat exchange intensification, including direct convection. The dependence is caused by a decrease in heat losses with flue gases and due to a decrease in losses through the masonry.

It was established that at the height of the working space of 800÷1,000 mm of the combustion furnace, fuel consumption decreases by 20÷30 %.

The design of the combustion space of the furnace of continuous operation mode was developed. The distinctive feature of the furnace of the developed design is the elimination of discreteness and implementation of the stable continuous operation mode of the heating unit. The longitudinal channels were made on the lateral surfaces of the cars and the furnace along the entire length of the latter, which makes it possible to implement the continuous removal of combustion products from the combustion space through canalized hearth of the cars into the longitudinal lateral channels, made in the walls of the furnace. Additional aerodynamic compaction of the working space of the furnace is ensured at any speed of the motion of the cars.

It was found that energy-technological efficiency at the arch heating of the combustion units with flat flame burners and combustion products removal under the workpiece (lower smoke removal) is on average by 1.3 times higher than at use of the circuit of products removal above the workpiece (lateral smoke removal), which is used in currently operating furnaces.

The design was developed and the tunnel furnace was put into operation. It was for chemical and thermal treatment of metallic and non-metallic materials and products during their heating by the assigned schedule.

Author Biographies

Valeriy Nikolsky, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

Doctor of Technical Sciences, Professor

Department of Energetic

Olga Oliynyk, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

PhD, Associate Professor

Department of Computer-integrated Technologies and Metrology

Viktor Ved, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

Senior Lecturer

Department of equipment of chemical plants

Andrii Pugach, Dnipro State Agrarian and Economic University Sergiy Yefremov str., 25, Dnipro, Ukraine, 49600

Doctor of Science in Public Administration, PhD, Associate Professor

Department of Agricultural Machinery

Ramzan Turluev, Grozny State Oil Technical University named after Academician M. D. Millionshchikov Avtorhanova str., 14/53, Grozny, Chechen Republic, Russian Federation, 364051

PhD, Associate professor, Head of Department

Department of Heat Engineering and Hydraulics

Oleksandr Alieksandrov, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

PhD, Senior LecturerDepartment of Applied Mechanics

Viacheslav Kosarev, Alfred Nobel University Sicheslavska Naberezhna str., 18, Dnipro, Ukraine, 49000

PhD, Associate Professor

Department of Information Technology

References

  1. Kapustin, V. M., Rudin, M. G., Kudinov, A. M. (2012). Osnovy proektirovaniya neftepererabatyvayushchih i neftekhimicheskih predpriyatiy. Moscow: Himiya, 440.
  2. Eynard, J., Grieu, S., Polit, M. (2011). Modular approach for modeling a multi-energy district boiler. Applied Mathematical Modelling, 35 (8), 3926–3957. doi: https://doi.org/10.1016/j.apm.2011.02.006
  3. Reddy, A., Kreider, J. F., Curtiss, P. S., Rabl, A. (2016). Heating and Cooling of Buildings: Principles and Practice of Energy Efficient Design. CRC Press, 862.
  4. Muhutdinov, A. R., Vahidova, Z. R., Efimov, M. G. (2014). Modelirovanie processa goreniya tverdogo topliva v topochnom ustroystve. Vestnik Kazanskogo tekhnologicheskogo universiteta, 17 (20), 114–116.
  5. Rabaçal, M., Fernandes, U., Costa, M. (2013). Combustion and emission characteristics of a domestic boiler fired with pellets of pine, industrial wood wastes and peach stones. Renewable Energy, 51, 220–226. doi: https://doi.org/10.1016/j.renene.2012.09.020
  6. Iguchi, M., Ilegbusi, O. J. (2010). The Coanda Effect. Modeling Multiphase Materials Processes, 41–88. doi: https://doi.org/10.1007/978-1-4419-7479-2_3
  7. Nikolsky, V., Yariz, V., Reshetnyak, I. (2017). Improvement of energy efficiency in the operation of a thermal reactor with submerged combustion apparatus through the cyclic input of energy. Eastern-European Journal of Enterprise Technologies, 2 (8 (86)), 39–44. doi: https://doi.org/10.15587/1729-4061.2017.97914
  8. Nikolsky, V., Oliynyk, O., Ved, V., Svietkina, О., Pugach, А., Shvachka, A. (2018). Design and study of the energy­efficient unified apparatuses for energy­technological manufacturing. Eastern-European Journal of Enterprise Technologies, 3 (8 (93)), 59–65. doi: https://doi.org/10.15587/1729-4061.2018.132572
  9. Nikolsky, V., Oliynyk, O., Shvachka, A., Nachovnyy, I. (2017). Thermal treatment of concentrated liquid toxic waste and automatic control of process efficiency. Eastern-European Journal of Enterprise Technologies, 5 (10 (89)), 26–31. doi: https://doi.org/10.15587/1729-4061.2017.111846
  10. Li, L., Peng, X. F., Liu, T. (2006). Combustion and cooling performance in an aero-engine annular combustor. Applied Thermal Engineering, 26 (16), 1771–1779. doi: https://doi.org/10.1016/j.applthermaleng.2005.11.023
  11. Askarova, A. S., Bekmukhamet, A., Bolegenova, S. A., Beketayeva, M. T., Maximov, Yu. V. Ospanova, Sh. S., Gabitova, Z. K. (2014). Investigation of turbulence characteristics of burning process of the solid fuel in BKZ 420 combustion chamber. WSEAS Transactions on Heat and Mass Transfer, 9, 39–50.
  12. Yarkova, V. S., Matyuhin, V. I. (2016). Vybor sposoba utilizacii tepla podtelezhechnogo prostranstva tunnel'noy pechi. Teplotekhnika i informatika v obrazovanii, nauke i proizvodstve (TIM'2016). Ekaterinburg, 134–137.
  13. Szego, G., Dally, B., Nathan, G. (2009). Operational characteristics of a parallel jet MILD combustion burner system. Combustion and Flame, 156 (2), 429–438. doi: https://doi.org/10.1016/j.combustflame.2008.08.009
  14. Parente, A., Galletti, C., Tognotti, L. (2008). Effect of the combustion model and kinetic mechanism on the MILD combustion in an industrial burner fed with hydrogen enriched fuels. International Journal of Hydrogen Energy, 33 (24), 7553–7564. doi: https://doi.org/10.1016/j.ijhydene.2008.09.058
  15. Syred, N., Giles, A., Lewis, J., Abdulsada, M., Valera Medina, A., Marsh, R. et. al. (2014). Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for methane and a high hydrogen content fuel in a generic swirl burner. Applied Energy, 116, 288–296. doi: https://doi.org/10.1016/j.apenergy.2013.11.071
  16. Askarova, A. S., Bolegenova, S. A., Maksimov, V. Y., Bekmuhamet, A., Ospanova, S. S. (2012). Numerical Research of Aerodynamic Characteristics of Combustion Chamber BKZ-75 Mining Thermal Power Station. Procedia Engineering, 42, 1250–1259. doi: https://doi.org/10.1016/j.proeng.2012.07.517
  17. Bulat, G., Jones, W. P., Marquis, A. J. (2013). Large Eddy Simulation of an industrial gas-turbine combustion chamber using the sub-grid PDF method. Proceedings of the Combustion Institute, 34 (2), 3155–3164. doi: https://doi.org/10.1016/j.proci.2012.07.031
  18. Oleynik, O. Yu., Taranenko, Yu. K. (2017). Vibrosterzhnevye chastotnye preobrazovateli temperatury. Vymiriuvalna ta obchysliuvalna tekhnika v tekhnolohichnykh protsesakh, 3, 58–64.
  19. Oliynyk, O., Taranenko, Y., Losikhin, D., Shvachka, A. (2018). Examining the Kalman Filter in the field of noise and interference with the non-Gaussian distribution. Eastern-European Journal of Enterprise Technologies, 4 (4 (94)), 36–42. doi: https://doi.org/10.15587/1729-4061.2018.140649

Downloads

Published

2018-10-01

How to Cite

Nikolsky, V., Oliynyk, O., Ved, V., Pugach, A., Turluev, R., Alieksandrov, O., & Kosarev, V. (2018). Research into the impact of structural features of combustion chamber in energy-technological units on their operational efficiency. Eastern-European Journal of Enterprise Technologies, 5(8 (95), 58–64. https://doi.org/10.15587/1729-4061.2018.143316

Issue

Section

Energy-saving technologies and equipment