Mechanism Research On Non-equilibrium Plasma Assisted Methane Combustion

Energy crisis and environmental pollution have become the two core themes of world development.Internal combustion engine is widely used in transportation,industrial production,military and other fields because of its high thermal efficiency,high power density,wide power range.Faced with the dual challenges of energy and environment,researchers of internal combustion engines have been studying the direction of high energy utilization and low emission pollution.In this paper,the effects of non-equilibrium plasma combustion on the combustion of non-equilibrium plasma are studied from the chemical kinetic point of view.The main research contents are the construction of the ionization mechanism and the effect of active particles on methane combustion in the process of non-equilibrium plasma assisted methane combustion.First,in the process of compiling the ionization mechanism,a chemical reaction rate calculation method is used to solve the Arrhenius reaction rate coefficient.The method is based on the collision cross section to solve the Boltzmann equation to obtain rate coefficients.The Arrhenius reaction rate coefficient is obtained by fitting the custom function.The ionization mechanism is prepared through the above methods and data.The characteristics,chemical reaction path and chemical reaction rate of the active particles after ionization were obtained by using CHEMKIN analyze the ionization mechanism.The activated particles obtained by ionizing reaction are added to the GRI3.0methane combustion mechanism to create the mechanism of plasma assisted methane combustion.In this paper,the active particle O₃ is added to GRI3.0,and the mechanism of the two chemical reactions of methane combustion is studied.The combustion mechanism with O₃ is faster than normal methane.