Amirkabir University of Technology Amirkabir Journal of Mechanical Engineering 2008-6032 50 2 2018 06 22 Study the Effects of Uniform Magnetic Fields and Pressures on the Concentration of Main Species of Methane Combustion Study the Effects of Uniform Magnetic Fields and Pressures on the Concentration of Main Species of Methane Combustion 337 346 982 10.22060/mej.2017.12194.5279 FA A. Saeedi Mechanical Engineering Department, University of Birjand, Birjand, Iran 0000-0003-1950-6098 J. Khadem Mechanical Engineering Department, University of Birjand, Birjand, Iran 0000-0001-6051-0924 H. Raznahan Mechanical Engineering Department, University of Birjand, Birjand, Iran Journal Article 2016 11 27 The effects of magnetic fields on combustion to control and optimize the flame deformation and the flame brightness is a well-known fact. The kinetics and equilibrium properties of chemical reactions of combustion are influenced by the magnetic force exerted on paramagnetic species. In this study, the numerical consideration of the effects of the uniform magnetic fields on one stage methane combustion reaction has been taken. With respect to this fact that NO, OH, and O2 are paramagnetic species and other species and methane have diamagnetic behavior, the effects of the uniform magnetic field at different pressures on 10 methane combustion main product species are studied by minimizing the Gibbs free energy. The results show that the uniform magnetic field at 1 atm pressure has considerable effects on paramagnetic species and their production is influenced dramatically. Also, the role of uniform magnetic fields on product species decreases by increasing the pressure. The results also indicate that uniform magnetic fields decreases the mole fraction of NO simultaneously with the increase in the temperature. Furthermore, applying uniform magnetic field and increasing the pressure reduce NO and CO pollutants and increase the temperature. The effects of magnetic fields on combustion to control and optimize the flame deformation and the flame brightness is a well-known fact. The kinetics and equilibrium properties of chemical reactions of combustion are influenced by the magnetic force exerted on paramagnetic species. In this study, the numerical consideration of the effects of the uniform magnetic fields on one stage methane combustion reaction has been taken. With respect to this fact that NO, OH, and O2 are paramagnetic species and other species and methane have diamagnetic behavior, the effects of the uniform magnetic field at different pressures on 10 methane combustion main product species are studied by minimizing the Gibbs free energy. The results show that the uniform magnetic field at 1 atm pressure has considerable effects on paramagnetic species and their production is influenced dramatically. Also, the role of uniform magnetic fields on product species decreases by increasing the pressure. The results also indicate that uniform magnetic fields decreases the mole fraction of NO simultaneously with the increase in the temperature. Furthermore, applying uniform magnetic field and increasing the pressure reduce NO and CO pollutants and increase the temperature. https://mej.aut.ac.ir/article_982_fec8d47d412bcbeece3d9128ae855a7a.pdf