Open Access
ARTICLE
Numerical Simulation of Turbulent Diffusion Flames of a Biogas Enriched with Hydrogen
Naima Krarraz1,*, Amina Sabeur1, Khadidja Safer2, Ahmed Ouadha1
1
Laboratoire des Science et Ingénierie Maritimes, Faculté de Génie Mécanique, Université des Sciences et de la Technologie d’Oran
Mohamed Boudiaf, Oran, Algérie
2
Laboratoire des Carburants Gazeux et de l’Environnement, Faculté de Génie Mécanique, Université des Sciences et de la
Technologie d’Oran Mohamed Boudiaf, Oran, 31000, Algérie
* Corresponding Authors: Naima Krarraz. Email: ;
Fluid Dynamics & Materials Processing 2024, 20(1), 79-96. https://doi.org/10.32604/fdmp.2023.026238
Received 26 August 2022; Accepted 08 June 2023; Issue published 08 November 2023
Abstract
Any biogas produced by the anaerobic fermentation of organic materials has the advantage of being an environmentally friendly biofuel. Nevertheless, the relatively low calorific value of such gases makes their effective utilization in practical applications relatively difficult. The present study considers the addition of hydrogen as a
potential solution to mitigate this issue. In particular, the properties of turbulent diffusion jet flames and the
related pollutant emissions are investigated numerically for different operating pressures. The related numerical
simulations are conducted by solving the RANS equations in the frame of the Reynolds Stress Model in combination with the flamelet approach. Radiation effects are also taken into account and the combustion kinetics are
described via the GRI-Mech 3.0 reaction model. The considered hydrogen fuel enrichment spans the range from
0% to 50% in terms of volume. Pressure varies between 1 and 10 atm. The results show that both hydrogen addition and pressure increase lead to an improvement in terms of mixing quality and have a significant effect on
flame temperature and height. They also reduce CO
2 emissions but increase NOx production. Prompt NO is
shown to be the predominant NO formation mechanism.
Graphical Abstract
Keywords
Cite This Article
APA Style
Krarraz, N., Sabeur, A., Safer, K., Ouadha, A. (2024). Numerical simulation of turbulent diffusion flames of a biogas enriched with hydrogen. Fluid Dynamics & Materials Processing, 20(1), 79-96. https://doi.org/10.32604/fdmp.2023.026238
Vancouver Style
Krarraz N, Sabeur A, Safer K, Ouadha A. Numerical simulation of turbulent diffusion flames of a biogas enriched with hydrogen. Fluid Dyn Mater Proc. 2024;20(1):79-96 https://doi.org/10.32604/fdmp.2023.026238
IEEE Style
N. Krarraz, A. Sabeur, K. Safer, and A. Ouadha "Numerical Simulation of Turbulent Diffusion Flames of a Biogas Enriched with Hydrogen," Fluid Dyn. Mater. Proc., vol. 20, no. 1, pp. 79-96. 2024. https://doi.org/10.32604/fdmp.2023.026238