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- W4387144416 abstract "Abstract The Allam-Fetvedt Cycle (AFC) offers the potential for electricity generation with minimal or even negative carbon emissions by using oxycombustion in supercritical carbon dioxide (sCO2). Because of the extreme high temperatures and pressures encountered in these systems, simulation of oxycombustion requires use of a complex equation of state such as the modified Soave-Redlich-Kwong (SRK) equation, coupled with equally complex correlations for transport properties. The current work simulates a model combustor using both an ideal gas equation of state and the SRK equation of state. The model combustor features a jet of CH4 mixing with and reacting with O2 in the sCO2 ambient. Two jet configurations are considered: one of pure CH4, and one of CH4 mixed with sCO2. Comparison of results shows that key output properties such as combustor temperature and flow distribution are impacted by the choice of equations of state. Inspection of simulation results shows that mixing and reaction rates, as well as the uniformity of the flow, are impacted by the choice of equation of state. These results show that even though use of a complex equation of state greatly increases the computational costs of these simulations, it is critical to accurately capturing the physics of these systems." @default.
- W4387144416 created "2023-09-29" @default.
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- W4387144416 date "2023-06-26" @default.
- W4387144416 modified "2023-10-18" @default.
- W4387144416 title "Simulation of Methane Oxycombustion in Supercritical Carbon Dioxide" @default.
- W4387144416 doi "https://doi.org/10.1115/gt2023-101568" @default.
- W4387144416 hasPublicationYear "2023" @default.
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