Impact of micro-explosive atomization of fuel droplets on relative performance indicators of their combustion

Research output: Contribution to journalArticle

Abstract

The idea of producing water-containing slurries and emulsions based on Diesel fuel, oil, coal, and coal processing waste has spread around the world. One of the ways to make the combustion of such fuels more efficient is through the micro-explosive droplet breakup, that is, the secondary atomization directly in the car combustion chambers and furnaces of boiler units. Here we study experimentally how micro-explosion affects the energy-related and environmental parameters of the combustion of slurry fuel droplets based on coal and its processing wastes. We present the results of experiments determining the threshold temperatures and ignition delay times, dimensions of the flame cloud of the dispersing particles, and anthropogenic emissions. The results obtained indicate that the micro-explosive atomization of fuel droplets can improve the environmental performance by up to 40%. The comprehensive analysis of the prospects of using coal-water slurries containing petrochemicals instead of coal has shown that the relative performance indicator of slurry fuel is 1.7–3.3 times higher than that of coal. With varying values of weight coefficients (environment, energy, and cost), the dimensionless slurry fuel performance coefficient may increase by 3–30% as compared to the case of equal values for these coefficients.

Original languageEnglish
Article number106334
JournalFuel Processing Technology
Volume201
DOIs
Publication statusPublished - May 2020

Fingerprint

Coal
Atomization
Slurries
Fuel Oils
Water
Fuel oils
Combustion chambers
Diesel fuels
Processing
Emulsions
Petrochemicals
Explosions
Boilers
Ignition
Time delay
Furnaces
Railroad cars
Costs
Experiments

Keywords

  • Combustion
  • Emission
  • Industrial waste
  • Micro-explosion
  • Relative indicators
  • Slurry fuel

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

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title = "Impact of micro-explosive atomization of fuel droplets on relative performance indicators of their combustion",
abstract = "The idea of producing water-containing slurries and emulsions based on Diesel fuel, oil, coal, and coal processing waste has spread around the world. One of the ways to make the combustion of such fuels more efficient is through the micro-explosive droplet breakup, that is, the secondary atomization directly in the car combustion chambers and furnaces of boiler units. Here we study experimentally how micro-explosion affects the energy-related and environmental parameters of the combustion of slurry fuel droplets based on coal and its processing wastes. We present the results of experiments determining the threshold temperatures and ignition delay times, dimensions of the flame cloud of the dispersing particles, and anthropogenic emissions. The results obtained indicate that the micro-explosive atomization of fuel droplets can improve the environmental performance by up to 40{\%}. The comprehensive analysis of the prospects of using coal-water slurries containing petrochemicals instead of coal has shown that the relative performance indicator of slurry fuel is 1.7–3.3 times higher than that of coal. With varying values of weight coefficients (environment, energy, and cost), the dimensionless slurry fuel performance coefficient may increase by 3–30{\%} as compared to the case of equal values for these coefficients.",
keywords = "Combustion, Emission, Industrial waste, Micro-explosion, Relative indicators, Slurry fuel",
author = "Nyashina, {G. S.} and Vershinina, {K. Yu} and Strizhak, {P. A.}",
year = "2020",
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