Research On The Effect Of Wood Fiber DBD On The Conversion Of Engine Intake Oxygen Particles

Cars bring convenience and speed to human travel,but also cause a series of problems,such as environmental pollution,noise pollution,energy crisis and so on.With the continuous development of social science and technology,people's understanding of low-temperature plasma is gradually deepening,especially in the application of low-temperature plasma technology to engine combustion enhancement and improvement,which has caused widespread concern.Dielectric barrier discharge technology is a very simple,convenient and safe way to discharge gas at atmospheric pressure to obtain the required plasma,which has been widely used in industrial production.Dielectric barrier discharge technology was first applied in industrial oxygen production,and then gradually applied to the field of aeroengines.In recent years,in the field of internal combustion engines and other combustion fields,the dielectric barrier discharge technology has begun to be gradually explored.This article has done the following work on this:In the first step,the structural design of the plasma wood fiber generator was carried out,and then the various physical fields such as electric field and flow field involved in the plasma wood fiber generator were analyzed,and the multiphysics coupling for the plasma wood fiber generator was established.The model is simulated by using Comsol multi-physics coupling simulation software.The distribution of the electric field intensity generated by the generator under multi-physics coupling is studied.The electrical reference is provided for the design of plasma wood fiber generator.Secondly,the establishment of a complete test system includes:designing and calculating the plasma generator that meets the requirements of the test engine,the reasonable construction of the test bench,etc.,the ability to detect the input and output variables,and adjust the discharge of the generator.The voltage and discharge frequency are used to control the chemical reaction of the plasma,and the experimental data obtained by comparing the voltages and frequencies are compared,so that the reaction process and the results are developed toward the target.Finally,by comparing the changes in oxygen and ozone concentrations before the intake of the engine and the changes in the different emissions in the exhaust gas.It is concluded that O and 03 particles can be generated during engine intake and have a good combustion-promoting effect on the engine.