Classic spark simulation using COMSOL software

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Hnatiuc, B.^1 ; Sabau, A.^1 ; Astanei, D.^2

Constanta Maritime University, Faculty of Naval Electromechanics, Mircea cel Batran Street no. 104, Constanta

900663, Romania^1

Gheorghe Asachi Technical University of Iasi, Faculty of Electrical Engineering, Bd. D. Mangeron, no. 21-23, Iasi

700050, Romania^2

关键词: Clean technologies;    Discharge voltages;    Electrical parameter;    Experimental values;    Local field approximations;    Number of electrons;    Rotational temperature;    Vibrational temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012050/pdf
DOI  :  10.1088/1757-899X/591/1/012050

学科分类：工业工程学

来源: IOP

【 摘 要 】

New surface treatments for maritime domain using clean technologies have been proposed. Among these technologies there are non-thermal plasmas produced at atmospheric pressure. The spark discharge produces such plasma by adapting the classic spark plug to a laboratory plasma minireactor and using an induction coil and a command circuit as power supply, adjusting the power and consequently the energy of the discharge. The spark discharge produced at atmospheric pressure has been diagnosed by classical methods, starting from the electrical parameters and the optical parameters (Optical Emission Spectroscopy method). The parameters that have been determined are: the reduced electric field, the rotational temperature, the vibrational temperature, the electron density and the electron temperature. This study proposes a COMSOL simulation using Plasma Module introducing as initial or boundary values the experimental data such discharge voltage, reduced electric field, maximum voltage, initial number of electrons or ions etc. It was assumed the hypothesis of Local Field Approximation (LFA) in order to solve the Maxwell equation and few elementary processes concerning more the electron influence than the ions influence. The final results indicate the spatial and temporal evolution of the electron density, the electron temperature and the electric field. The simulated data are in good agreement with the data obtained from the experimental values.