| Issue |
MATEC Web Conf.
Volume 370, 2022
2022 RAPDASA-RobMech-PRASA-CoSAAMI Conference - Digital Technology in Product Development - The 23rd Annual International RAPDASA Conference joined by RobMech, PRASA and CoSAAMI
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|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 13 | |
| Section | Computational & Data-driven Modelling Seminar | |
| DOI | https://doi.org/10.1051/matecconf/202237002004 | |
| Published online | 01 December 2022 | |
Simulation of the effect of evaporation and gas composition during plasma spheroidization of titanium particles
1 Department of Chemical, Metallurgical, and Material Engineering, Tshwane University of Technology, Pretoria 0185.
2 Department of Chemical, Metallurgical, and Material Engineering, Tshwane University of Technology, Pretoria 0185, South Africa.
3 Plasma Technologies, and High-Temperature Chemistry, The South African Nuclear Energy Corporation SOC Ltd, South Africa.
4 Plasma Technologies, and High-Temperature Chemistry, The South African Nuclear Energy Corporation SOC Ltd, South Africa.
* Corresponding author: alexwatano@gmail.com
A 3D model was proposed that describes the in-flight behavior of titanium particles in the plasma environment, developed in the commercial CFD Ansys Fluent software, which described the heating of particles. The rate of evaporation was investigated based on the gas compositions, and the mass evaporated on the surface of the particle along the trajectory under plasma conditions. To evaluate the spheroidization rate of titanium particles, the calculated temperature and flow histories were established. Significant heat exchange behaviors are presented due to the variations in hydrogen content and feed rate. The simulation results have demonstrated that the range of 0-4% of H2 and at a low injection feed rate of 3-10 g/min minimized the evaporation rate and increased the spheroidization rate of particles.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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