Abstract
The fuel and oxidiser react as soon as they mix in a non-premixed flame, and the rate of combustion is restricted by the mixing. To improve mixing in such kinds of combustion, a high turbulence shear layer in the combustion system is preferred. By assisting in the fuel–air mixing process and providing a recirculation region that can act as flame holders and impact residence time, air swirling can control combustor performance. ANSYS will be used to do numerical analysis for the conditions mentioned above. The turbulence model used in this work is k-epsilon, which has been shown to be reliable in similar experiments. Fluent has a number of pressure-based algorithms. For velocity and pressure coupling, a SIMPLE method was used in this work. With two-equation turbulence models, the first-order upwind technique has been applied. The interaction between turbulence chemistry and non-premixed combustion was modelled using the (PDF). The thermal properties and flow velocity were displayed across the axial positions of the burner at varied regulating parameters.
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Abbreviations
- AFR:
-
Air–fuel ratio
- CFD:
-
Computational fluid dynamics
- CTRZ:
-
Central toroidal recirculation zone
- PDF:
-
Probability density function
- \(\emptyset\) :
-
Equivalence ratio
- \(f\) :
-
Mixture fraction
- R:
-
Radius
- SN:
-
Swirl number
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Acknowledgements
We are thankful to Mr. Piyuh Savaj, for his help during this work. This work was supported by the S. V. National Institute of Technology Surat [Grant Code No. 2020-21/Seed Money/13].
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Kadia, K., Baraiya, N.A., Shah, R.D. (2023). Numerical Investigation on Characteristics of Methane Combustion. In: Mehta, H.B., Rathod, M.K., Abiev, R., Arıcı, M. (eds) Recent Advances in Thermal Sciences and Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-7214-0_27
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DOI: https://doi.org/10.1007/978-981-19-7214-0_27
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