International Scientific Journal

Thermal Science - Online First

online first only

Combustion of diesel fuel sprayed with cold or heated air in an atmospheric burner

In this work the combustion characteristics of liquid hydrocarbons when atomized by a high-speed air jet were studied, using diesel fuel as an example. This approach to spraying liquid fuel in combustion processes has a number of advantages over traditional spraying: the ability to supply fuel with a low degree of purification, reducing the chance of coking of fuel equipment. Using an atmospheric burner device with natural air supply into the mixing chamber, the dependences of the composition of intermediate and final combustion products were studied, and the flame temperature was measured at various fuel flow rates and parameters of the atomizing air jet (flow rate, temperature). A comparison of the obtained characteristics was made for equivalent modes at different temperatures of the supplied atomizer. It was found that when heated air is used as a sprayer, higher flame temperatures are ensured, which ensures more complete fuel burnout and a decrease in CO concentration in the flue gases, but at the same time, a slight increase in NOx was observed.
PAPER REVISED: 2023-12-29
PAPER ACCEPTED: 2024-01-06
  1. Meller, D., et al. Exhaust Gas Recirculation (EGR) analysis of a swirl-stabilized pulverized coal flame with focus on NOx release using FPV-LES, Fuel, 343 (2023), 127939
  2. Wang, Y., et al. Experimental investigation of the characteristics of NOx emissions with multiple deep air-staged combustion of lean coal, Fuel, 280 (2020), 118416
  3. Soloklou, M. N., Golneshan, A. A. Effect of CO2 diluent on the formation of pollutant NOx in the laminar non-premixed methane-air flame, International Journal of Heat and Mass Transfer, 148 (2020), 119071
  4. Mohammadpour, A., et al. Reaction zone characteristics, thermal performance and NOx/N2O emissions analyses of ammonia MILD combustion International Journal of Hydrogen Energy, 47, 48 (2022), pp. 21013-21031
  5. Cheng, L., et al. The effects of steam dilution on flame structure and stability for a H2/air micromix burner, Journal of the Energy Institute, 107 (2023), art. No. 101188
  6. Papagiannakis, R. G. Study of air inlet preheating and EGR impacts for improving the operation of compression ignition engine running under dual fuel mode, Energy Conversion and Management, 68 (2013), pp. 40-53
  7. Naima, K., et al. Effect of EGR on Performances and Emissions of DI Diesel Engine Fueled with Waste Plastic Oil: CDF Approach, Annales de Chimie - Science des Matériaux, 45, 3 (2021), pp. 217-223
  8. Chandrasekar, K., et al. The combined effect of EGR and hydrogen addition on a Syzygium cumini (jamun) liquid biofuel engine, Biotechnology for Biofuels and Bioproducts, 16 (2023), 105
  9. Xu, Z., et al. Experimental and numerical study of the effect of initial temperature on the combustion characteristics of premixed syngas/air flame, International Journal of Hydrogen Energy, 48, 12 (2023), pp. 4875-4890
  10. Kumar, K. S., Raj, R. T. K. Effect of Fuel Injection Timing and Elevated Intake Air Temperature on the Combustion and Emission Characteristics of Dual Fuel Operated Diesel Engine, Procedia Engineering, 64 (2013), pp. 1191-1198
  11. Anufriev, I. S., et al. Study of liquid hydrocarbons atomization by supersonic air or steam jet, Applied Thermal Engineering, 163 (2019), 114400
  12. Anufriev, I. S., et al, Cleaner crude oil combustion during superheated steam atomization, Thermal Science, 25, 1-A (2021), pp. 331-345
  13. Anufriev, I. S., et al. New ecology safe waste-to-energy technology of liquid fuel combustion with superheated steam, Energy, 250 (2022), 123849
  14. Anufriev, I. S., et al. NOx reduction by steam injection method during liquid fuel and waste burning, Process Safety and Environmental Protection, 152 (2021), pp. 240-248
  15. Anufriev, I. S., Kopyev, E. P. Diesel fuel combustion by spraying in a superheated steam jet, Fuel Processing Technology, 192 (2019), pp. 154-169
  16. Kopyev, E. P., et al. Experimental study of liquid hydrocarbon combustion under conditions of steam gasification in the presence of diluent gas, Journal of Physics: Conference Series, 2233 (2022), 012015
  17. DIN EN 267:2011-11. Automatic forced draught burners for liquid fuels.