Numerical Study of the Flat Flame Burner Power Effect on the Producing Uniform Temperature Distribution in Cracking Furnaces

Document Type : Research Article

Authors

1 Energy Conversion , Mechanical Engineering , Tarbiat Modares University , Tehran , Iran

2 Faculty of Mechanical Engineering, Tarbiat Modares University

3 Faculty of Mechanical Engineering , Tarbiat Modares University

4 Faculty of Mechanical Engineering , Shahid Chamran University

Abstract

In the present study, with the help of numerical study, the study of the uniform heat flux
formation on process tubes as the main parameter in cracking furnaces has been investigated using flat
flame burners with different thermal powers. Due to the lack of experimental data for solver validation,
two problems of swirl burner and channel with conjugate heat transfer of combustion gases and solid
surface have been used. To carry out simulations, the chtMultiRegionReactingFoam solver in OpenFOAM
software has been developed by adding the conjugate heat transfer capability to the reactingFoam solver.
In simulations, k-ω shear stress transport turbulence model has been used for turbulence modeling. The
results of the simulations show that the use of a flat flame burner in cracking furnaces allows for the
uniform temperature distribution in the furnace with the low maximum combustion temperature. Also, to
create the appropriate heat flux around the pipes so that the proper temperature distribution for cracking
reactions is provided, the minimum heat flux of the flat flame burners is required, which in less than that,
the appropriate temperature distribution does not occur on the pipes.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 6
September 2020
Pages 1379-1396

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