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INFLUENCE FACTORS OF METHANE-AIR COUNTER FLOW DIFFUSION FLAME

ABSTRACT
This paper investigates the influences of pressures, velocities, and temperatures of gases at nozzles on the temperature of flame. Considering that temperature and species mass fractions are functions of axial co-ordinates, a quasi-1-D mathemathic model in cylindrical co-ordinates for counterflow diffusion flame is built. The results show that the pressure, velocities, and temperatures of gases can affect the temperature distributions of methane-air counterflow diffusion flame, and that the influence of the variations of velocities at two nozzles on the movement of the starting reaction interface is most significant in these factors.
KEYWORDS
PAPER SUBMITTED: 2016-05-06
PAPER REVISED: 2016-07-31
PAPER ACCEPTED: 2016-08-25
PUBLISHED ONLINE: 2017-09-09
DOI REFERENCE: https://doi.org/10.2298/TSCI160506054H
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE 4, PAGES [1689 - 1693]
REFERENCES
  1. Chen, S., et al., Counterflow Diffusion Flame of Hydrogen-Enriched Biogas under MILD Oxy-Fuel Condition, International Journal of Hydrogen Energy, 36 (2011), 11, pp. 15403-15413
  2. Li, W. J., et al., A Nonlinear Pyrolysis Layer Model for Analyzing Thermal Behavior of Charring Ablator, International Journal of Thermal Science, 98 (2015), Dec., pp. 104-112
  3. Li, W. J., et al, Nonlinear Analysis on Thermal Behavior of Charring Materials with Surface Ablation, International Journal of Heat and Mass Transfer, 84 (2015), May, pp. 245-252
  4. Li, W. J., et al, A New Mechanism of Surface Ablation of Charring Materials for a Vehicle During Reentry, Applied Thermal Engineering, 106 (2016), Feb., pp. 838-849
  5. Li, W. J., et al, Protection of Pyrolysis Gases Combustion Against Charring Materials' Surface Ablation, International Journal of Heat & Mass Transfer, 102 (2016), Jan., pp. 10-17
  6. Li, W. J., et al, On the Novel Designs of Charring Composites for Thermal Protection Application in Reentry Vehicles, Applied Thermal Engineering, 93 (2015), Feb., pp. 849-855
  7. Li, W. J., et al, Effects of Gradient Density on Thermal Protection Performance of AVCOAT Compo-sites under Varied Heat Flux, Polymer Composites, 3 (2016), 3, pp. 1034-1041
  8. Li, W. J., et al, Effects of Gradient Density on Effective Heat Capacity of Charring Ablative Material for Re-Entry Vehicles, International Journal of Numerical Methods for Heat & Fluid Flow, 25 (2015), 3, pp. 472-483
  9. Huang, H., et al, Numerical Study on Aerodynamic Heat of Hypersonic Flight, Thermal Science, 20 (2016), 3, pp. 939-944
  10. Zambon, A. C., et al., Explicit Reduced Reaction Models for Ignition, Flame Propagation, and Extinc-tion of C2H4/CH4/H2 and Air Systems, Combustion & Flame, 150 (2007), 1, pp. 71-91
  11. Liu, J., et al., Numerical Study of the Chemical Thermal and Diffusion Effects of H2 and CO Addition on the Laminar Flame Speeds of Methane-Air Mixture, International Journal of Hydrogen Energy, 40 (2015), 12, pp. 8475-8483
  12. Guessab, A., RANS Simulation of Methane Diffusion Flame Comparison of Two Chemical Kinetics Mechanisms, Journal of Physical Science and Applicaton, 3 (2013), 2, pp. 400-408

© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence