Numerical simulation on thermal plasma temperature field in the torch for different conditions

TALENTA - Conference on Engineering, Science and Technology 2017

工业技术;自然科学

Siregar, Y.^1,2 ; Kodama, N.^1 ; Tanaka, Y.^1 ; Ishijima, T.^1 ; Uesugi, Y.^1

Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma, Kanazawa

920-1192, Japan^1

Department of Electrical Engineering, Universitas Sumatera Utara, Medan

20155, Indonesia^2

关键词: Axial positions;    Carrier gas;    Gas compositions;    Inductively-coupled;    Oxygen fractions;    Power densities;    Power supply;    Thermal plasma;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/309/1/012090/pdf
DOI  :  10.1088/1757-899X/309/1/012090

来源: IOP

【 摘 要 】

Numerical simulation was conducted to obtain the temperature and gas flow fields in inductively coupled thermal plasma (ICTP). Influence of gas composition, power supply, quenching gas, carrier gas, pressure and frequencies were investigated on thermal plasma temperature fields. Results indicated that higher oxygen fraction in gas composition makes the shrinkage of the thermal plasmas, which increases power density in local volume. Further, an increase in the quenching gas, the carrier gas and the pressure did not affect the temperature of thermal plasma. On the other hand, the temperature in thermal plasma decreased at axial position along with degradation of frequency.