Numerical investigation of turbulent combustion with hybrid enrichment by hydrogen and oxygen |
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| Affiliation: | 1. Research and Technology Center of Energy, Laboratory of Wind Energy Master and Waste Energy Recovery (LMEEVED), Hammam-Lif, 2050, Tunisia;2. National Engineering School of Monastir, LESTE, Monastir, Tunisia;3. Aerothermochemistry Interprofessional Research Complex (CORIA), University of Rouen, France;1. Shenzhen Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, People''s Republic of China;2. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People''s Republic of China;3. Department of Physics, University of Kotli, Kotli 11100, Pakistan;1. Department of Chemical Systems Engineering, Nagoya University, Nagoya, 464-8603, Japan;2. Material and Property Analysis Laboratory, Technology Research Division, LIXIL Corporation, 2-1-1 Ojima, Koutou, Tokyo, 136-8535, Japan;3. Department of Energy Engineering and Science, Nagoya University, Nagoya, 464-8603, Japan;1. Department of Mechanical Engineering, Institute of Pure and Applied Sciences, Marmara University, Kuyubasi, 34722, İstanbul, Turkey;2. Department of Mechanical Engineering, Faculty of Technology, Marmara University, Kuyubasi, 34722, İstanbul, Turkey |
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| Abstract: | In this study, the NG + H2/air + O2 turbulent flame is numerically investigated using the Computational Fluid Dynamics CFD code. The modulation of combustion and radiation is performed respectively by the Eddy Dissipation Model and the Discrete Ordinate Model. The turbulence modeling is carried out by Shear Stress Transport (SST/k-ω) turbulence model. The H2 amount in the fuel mixture varies under constant volumetric fuel flow between 0 and 60% and the oxidant is composed by 80% air and 20% pure oxygen. The results obtained show the hydrogen addition to Natural Gas improves the mixing between the reactants, reduces their residence time and reduces the length and thickness of the flame. On the other hand, the hydrogen enrichment minimizes the CO2 and CO production and increases the NOx level. |
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| Keywords: | Eddy dissipation model (SST) k-ω turbulence model Hydrogen enrichment |
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