Comparative Analysis of the Oxy-Fuel Kinetic Mechanisms by the Ignition Delay Time of Methane

Sergey Osipov, Vladimir Sokolov, Vadim Yakovlev, Muhammad Maaz Shaikh () and Nikolay Rogalev
Additional contact information
Sergey Osipov: Department of Innovative Technologies of High-Tech Industries, Moscow Power Engineering Institute, National Research University, 14 Krasnokazarmennaya Str., Moscow 111250, Russia
Vladimir Sokolov: Department of Innovative Technologies of High-Tech Industries, Moscow Power Engineering Institute, National Research University, 14 Krasnokazarmennaya Str., Moscow 111250, Russia
Vadim Yakovlev: Department of Innovative Technologies of High-Tech Industries, Moscow Power Engineering Institute, National Research University, 14 Krasnokazarmennaya Str., Moscow 111250, Russia
Muhammad Maaz Shaikh: Department of Innovative Technologies of High-Tech Industries, Moscow Power Engineering Institute, National Research University, 14 Krasnokazarmennaya Str., Moscow 111250, Russia
Nikolay Rogalev: Department of Thermal Power Plants, Moscow Power Engineering Institute, National Research University, 14 Krasnokazarmennaya str., Moscow 111250, Russia

Energies, 2025, vol. 18, issue 9, 1-17

Abstract: Supercritical oxy-fuel combustion, which allows for the high efficiency of power generation with near-zero CO 2 emissions, is considered a promising method to reduce the carbon footprint in the power energy sector. One of the problems in the widespread use of oxy-fuel combustion is a lack of comparative studies on the existing oxy-fuel combustion kinetic mechanisms depending on mixture composition, which complicates the choice of a kinetic mechanism for modeling oxy-fuel combustion. In this paper, a comparative verification of the kinetic mechanisms of GRI-Mech 3.0, UoS sCO 2 2.0, OXY-NG, and Skeletal was performed using published experimental data on the ignition delay time of methane under conditions of oxy-fuel combustion. A comparative numerical study of the kinetic mechanisms in the wide range of pressures, CO 2 mass fractions in oxidizer (γ), and excess oxidizer ratios (α) by the ignition delay time is also carried out. It was found that the limits of applicability of all of the mechanisms studied are absent when modeling the ignition delay time, the most accurate mechanism to model the IDT of methane in oxy-fuel conditions being UoS sCO 2 2.0, while the other three mechanisms are overall much inferior to it in terms of accuracy. However, Skeletal and GRI-Mech 3.0 mechanisms can be used to model the IDT during the oxy-fuel combustion of methane under both atmospheric and supercritical conditions, although only in a narrow range of γ.

Keywords: oxy-fuel combustion; kinetic mechanisms; GRI-Mech; UoS sCO 2; OXY-NG; Skeletal (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/9/2155/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/9/2155/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:9:p:2155-:d:1640414

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().