The Research Of Faraday Electric Propulsion In A Novel Magneto Hydrodynamic Gereration Systerm

Energy is an important material basis for the production and living of human being.Therefor, high energy using efficiency and low emission are demanding by the sustainable development.As an effective way to solve this situation,the development of advanced energy power system is increasingly becoming the research focus.In the magnetic field,the electric energy of plasma and neutral fluid kinetic energy can be converted to each other.In this paper,a new system of magneto hydrodynamic (MHD) generation system is proposed.To research the core issue:the characteristic of the Faraday electric propulsion in the system,the numerical simulation and experimental methods are using to analysis the effect of the related factor.The specific research content as follow:Firstly..according to the basic physical process for investigation,the paper builds atmospheric arc discharge to establish the model of high ionization rate plasma.In terms of the experimental data measurement,the paper used spectroscopy to measure the electron density ne and the electron temperature T e of the plasma,under the condition of different gas flow rate and the input electric power.Finally,in order to control the electric temperature and the electric density,the paper design a new way to achieve arc discharge.Then, experimental setup is designed and fabricated for the platform of the Faraday electric propulsion,such as the plasma generator, DC circuit, magnetic field.Subsequently,we carry on the experimental research at different conditions of the magnetic flux density.In terms of the experimental measurement,the paper used spectroscopy to measure the electron density ne and the electron temperature T e of the plasma.The paper also used the U-tube to measure the pressure difference ?p and the thermocouple to measure the temperature of the gas.According to the experimental data,the paper analyzes the effect of the magnetic flux density to the energy conversion rate,as well as the efficiency of the electrical-kinetic energy conversion.Finally,in the paper,the method of simulation to discovery the relationship between the energy conversion rate and the magnetic flux density B,the gas mass flow rate m,the conductance a is used.The results have shown that:with the increase of the magnetic flux density B,the gas mass flow rate m and the conductance ?,the energy conversion rate increases.To achieve a high energy conversion rate,the Faraday electric propulsion using arc discharge needs the working gas with a high Ionization rate,in a high magnetic field.