Development and CFD study of vortex burner device for oxy-fuel combustion chamber

Authors

  • Sergey Osipov Department of Innovative Technologies in Science-Intensive Industries, National Research University Moscow Power Engineering Institute, Moscow 111250, Russia https://orcid.org/0000-0002-5883-840X
  • Andrey Vegera Department of Innovative Technologies in Science-Intensive Industries, National Research University Moscow Power Engineering Institute, Moscow 111250, Russia https://orcid.org/0000-0003-3970-8009
  • Polina Golosova Department of Innovative Technologies in Science-Intensive Industries, National Research University Moscow Power Engineering Institute, Moscow 111250, Russia https://orcid.org/0009-0008-0294-3180
  • Olga Zlyvko Department of Innovative Technologies in Science-Intensive Industries, National Research University Moscow Power Engineering Institute, Moscow 111250, Russia https://orcid.org/0000-0003-0554-4026
  • Aleksey Malenkov Department of Innovative Technologies in Science-Intensive Industries, National Research University Moscow Power Engineering Institute, Moscow 111250, Russia https://orcid.org/0000-0002-3819-4598
Article ID: 794
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DOI:

https://doi.org/10.18686/cest794

Keywords:

Allam cycle; oxy-fuel combustion; carbon dioxide; numerical simulation; burner device

Abstract

This article presents a comprehensive research and development effort focused on the design of a vortex burner device intended to enable stable oxy fuel combustion of natural gas in a supercritical carbon dioxide (sCO2) environment, as used in the Allam cycle for zero emission power generation. The prototype burner, featuring a conical bluff body, was systematically analyzed using advanced numerical simulations incorporating detailed chemical kinetics. Optimization studies identified the most suitable combustion parameters, namely an oxidizer excess coefficient α = 1.05. This parameter choice is justified by the fact that it yields acceptable emissions of carbon monoxide (CO) and unburned hydrocarbons (UHC) while maintaining a reasonable level of auxiliary power consumption by the air separation unit (ASU). In the numerical investigation employing the prototype configuration, the maximum stable mass fraction of CO2 in the oxidizer diluent mixture (γ) was found to be 0.82, beyond which flame detachment occurred. Through iterative design enhancements—specifically, replacing the conical bluff body with a hemispherical perforated bluff body and incorporating a diffuser-shaped outlet section—the burner configuration was substantially improved. These modifications enhanced flame stability and enabled a significant increase in γ to 0.867. As a result, the peak process temperature was reduced by more than 400 K, while CO emissions decreased by over a factor of 17 compared to the prototype, with unburned hydrocarbon levels remaining low.

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Published

2026-04-20

How to Cite

Osipov, S., Vegera, A., Golosova, P., Zlyvko, O., & Malenkov, A. (2026). Development and CFD study of vortex burner device for oxy-fuel combustion chamber. Clean Energy Science and Technology, 4(2). https://doi.org/10.18686/cest794

Issue

Vol. 4 No. 2 (2026)

Section

Article

License

Copyright (c) 2026 Sergey Osipov, Andrey Vegera, Polina Golosova, Olga Zlyvko, Aleksey Malenkov

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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