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Multiple criteria approach to model calibration in DEM simulation of compaction processes
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-4861-1903
2013 (English)In: SME Annual Meeting Preprints, 2013Conference paper, Published paper (Other academic)
Abstract [en]

A 2-dimensional computational model based on the discrete element method (DEM) is utilized for modeling of stamp-charged coke making. In this process, a large volume of coal is compacted to one single coal cake before entering the coke oven. Cake densification and mechanical strength development are key factors for the subsequent production of a high-quality coke. An approach is introduced for model calibration utilizing multiple control parameters obtained from a laboratory-scale stamping device. Experimental data on stamper rebound amplitude, attenuation and peak force are compared with simulation output in a pairwise manner by constructing a criteria space, which allows identification of model settings best satisfying the control parameters. The calibration procedure carried out by multiple criteria comparison aided model parameter selection for reproducing stamper behavior in response to the properties of the cake subjected to compaction. This modeling and calibration procedure offers possibilities for numerically studying the densification and mechanical strength development of coal cakes. However, the approach is also more widely applicable to other compaction processes.

Place, publisher, year, edition, pages
2013.
National Category
Metallurgy and Metallic Materials
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-34822Local ID: 9208141b-cb62-4102-8512-db46d4793dbeOAI: oai:DiVA.org:ltu-34822DiVA, id: diva2:1008073
Conference
SME Annual Meeting : 24/02/2013 - 27/02/2013
Note
Godkänd; 2013; 20121213 (andsan)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2023-12-19Bibliographically approved

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Sand, AndersRosenkranz, Jan

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CiteExportLink to record
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