About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Pyrometallurgy: Developing Low Carbon Pathways
|
Presentation Title |
A Desktop Study on the Potential use of South African Slags as Thermal Storage Medium |
Author(s) |
Sifiso Sambo, Joalet D. Steenkamp, Pieter Bezuidenhout |
On-Site Speaker (Planned) |
Sifiso Sambo |
Abstract Scope |
Waste slag sources from South African pyrometallurgical smelters are evaluated to determine their potential for use as sensible heat storage media in Concentrated Solar Power applications. This offers the possibility of repurposing slag waste materials while tackling their environmental and handling problem. This work studies the key performance indicators of thermal energy storage systems to assess the suitability of pyrometallurgical slag for use as filling materials in packed bed thermal energy storage. The thermophysical properties of selected slags and their potential for long-term thermal stability are studied through the equilibrium module of FactSage 8.0 from 100℃ to 1000℃. A validated model is employed to study the heat transport process in the fluid-solid interface with air as the heat transfer fluid. The maximum temperature of the studied thermal storage cycles is 750℃. The overall system performance shows that pyrometallurgical slags have potential as energy storage materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Pyrometallurgy, Sustainability, Energy Conversion and Storage |