Characterization of the thermal flux transferred by the plasma arc to the surface of the liquid bath in the Plasma Arc Melting Cold Hearth Refining process (PAMCHR)
| Autor: | Jean-Pierre Bellot, Stéphane Hans, Léa Décultot, Emiliane Doridot, Alain Jardy, Jérôme Delfosse, Fabienne Ruby-Meyer |
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| Přispěvatelé: | Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Aubert & Duval, Safran Tech, Metafensch, Jardy, Alain |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Surface (mathematics)
Materials science Hearth [SPI] Engineering Sciences [physics] Metallurgy 02 engineering and technology [SPI.MAT] Engineering Sciences [physics]/Materials Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences Characterization (materials science) [SPI.MAT]Engineering Sciences [physics]/Materials Plasma arc welding [SPI]Engineering Sciences [physics] Heat flux Scientific method 0103 physical sciences TA1-2040 010306 general physics 0210 nano-technology ComputingMilieux_MISCELLANEOUS Refining (metallurgy) |
| Zdroj: | 14th World Conference on Titanium 14th World Conference on Titanium, Jun 2019, Nantes, France MATEC Web of Conferences, Vol 321, p 10003 (2020) |
| Popis: | Europe is a major provider of titanium scrap but until now there has been no european facility dedicated to the production of aeronautical quality titanium alloys by recycling. UKAD, a joint-venture between Aubert & Duval and UKTMP, ADEME and Crédit Agricole Center France, created the company EcoTitanium, where the recycling of machining scraps is achieved using the Plasma Arc Melting Cold Hearth Refining (PAMCHR) process with the aim of producing such alloy ingots. The determination of the heat flux transferred from the plasma column to the surface of the liquid bath is an important issue needed for the development of a future 3D process modeling based on Ansys-Fluent CFD software. With this preliminary aim of predicting the heat flux, a study coupling pilot furnace testing and numerical modeling has been performed. Melting tests were carried out in a pilot PAMCHR furnace in MetaFensch, with a stationary torch. In parallel, the different contributions of the heat flux transferred to the surface of the liquid bath were identified and implemented in a simple 2D axisymmetric heat transfer model. Numerical results are compared to the experimental measurements, in order to define the heat flux transferred from the plasma torch. |
| Databáze: | OpenAIRE |
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