About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Melt Processing, Casting and Recycling
|
Presentation Title |
Kinetics of dissolved hydrogen from water vapour into and out of molten aluminium |
Author(s) |
Martin Syvertsen, Halvor Dalaker |
On-Site Speaker (Planned) |
Martin Syvertsen |
Abstract Scope |
Most melting and holding furnaces in casthouses are heated with gas burners. These gas burners give high concentration of water vapour in the atmosphere. The concentration of water vapour is dependent on both burner configuration and furnace design (excess air entrainment), as well as fuel. Water vapour in the furnace atmosphere is considered as the main source of hydrogen dissolved in the melt. The issue will become even more relevant if hydrogen gas is used in burners in a push towards decarbonisation. High levels of water vapour have previously been shown to correlate with high levels of dissolved hydrogen. This paper shows the dynamic transport of hydrogen into and out of the melt. The concentration in the melt is measured experimentally and compared to models for diffusion in molten aluminium. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Recycling and Secondary Recovery, Sustainability |