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The Hong Kong Electronics Fair is one of the most influential electronic product trade shows in Asia. The application of optical emission spectroscopy for diagnosing the temperature of direct current electric arc plasma has been carried out by, e. The plotted difference is approximated with two logarithmic expressions, one for the N/N 2 ratio below 0. It is clear from the figure that the mass-averaged temperature calculated using the experimental temperature profile is significantly higher than the equilibrium mass-averaged temperature. The cathode tip is supplied with power, and a voltage difference is imposed between the cathode and anode, producing an arc channel between the electrodes.

In the EDI modeling, an ionized plasma that obeys LTE is considered, so the material properties are defined accordingly. Strykowski, Instabilities in Plasma Spray Jets, Thermal Spray 2006: Science, Innovation, and Application, Basil R.The arc is assumed to be in local thermal equilibrium (LTE), meaning the temperature difference between the electrons and the heavy particles is negligible.

Wang HX, He QS, Murphy AB et al (2017) Numerical simulation of nonequilibrium species diffusion in a low-power nitrogen–hydrogen arcjet thruster. W of power, but this depends on the elemental composition of the sample (due to different ionization energies). Wei FZ, Wang HX, Murphy AB et al (2013) Numerical modelling of the nonequilibrium expansion process of argon plasma flow through a nozzle. Mass average temperature of different gases at the plasma torch outlet: comparison between experiments, numerical results, and thermodynamic equilibrium data. On behalf of Torch Electron, we cordially invite you to attend the upcoming Hong Kong Electronics Fair 2023 (Autumn Edition).The steady state computational analysis is conducted on a 2D axis-symmetric geometry (that has the same shape, dimensions, and inflow conditions of the plasma torch used in the experiments). In the computational analysis, the amount of heat transferred to the plasma can be calculated by integrating the gas heat enthalpy through the plasma torch outlet.