Towards Greener Industry: Modelling of Slag Heat Recovery
Source abstract
Abstract
The steel industry, in accordance with the momentum of greener industry, has welcomed the changes and is actively pursuing that objective. One such activity is the commitment to energy recovery from by-products such as slag since the average energy content of ferrous slags is around 1 to 2 GJ/tslag. The recovered energy could, then, be used in heating or drying process among others. The RecHeat was designed and modelled iteratively to achieve an optimised heat recovery apparatus. The model shows that the temperature of different sections of the heat exchanger part varies from 170 to 380 °C after slag pouring while the average air temperature at the entrance of the heat exchanger is less than 150 °C. Furthermore, the temperature of the fluid medium changes from 125–140 °C to 260–340 °C from one end of the heat exchanger part to the other at the end of the simulation. The outlet temperature at the end of the simulation is calculated to be around 340 °C, which shows an increase by at least 200 °C in the temperature of the air entering the apparatus.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Iron and Steelmaking Processes · Granular flow and fluidized beds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Primary and Secondary Steelmaking Group, Process Metallurgy Department, Swerim AB, SE-974 37 Luleå, Sweden
Division of Applied Process Metallurgy, Department of Material Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
SFTec Oy, FI-90570 Oulu, Finland
Funding
Research Fund for Coal and Steel
References (11)
Show source-provided references
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