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Modeling of energy consumption factors for an industrial cement vertical roller mill by SHAP-XGBoost: a "conscious lab" approach
School of Mining Engineering, College of Engineering, University of Tehran, Tehran, 16846-13114, Iran.
Department of Computer Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
Production Department of Ilam Cement Plant, Ilam, Iran.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.ORCID iD: 0000-0002-2265-6321
2022 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 12, no 1, article id 7543Article in journal (Refereed) Published
Abstract [en]

Cement production is one of the most energy-intensive manufacturing industries, and the milling circuit of cement plants consumes around 4% of a year's global electrical energy production. It is well understood that modeling and digitalizing industrial-scale processes would help control production circuits better, improve efficiency, enhance personal training systems, and decrease plants' energy consumption. This tactical approach could be integrated using conscious lab (CL) as an innovative concept in the internet age. Surprisingly, no CL has been reported for the milling circuit of a cement plant. A robust CL interconnect datasets originated from monitoring operational variables in the plants and translating them to human basis information using explainable artificial intelligence (EAI) models. By initiating a CL for an industrial cement vertical roller mill (VRM), this study conducted a novel strategy to explore relationships between VRM monitored operational variables and their representative energy consumption factors (output temperature and motor power). Using SHapley Additive exPlanations (SHAP) as one of the most recent EAI models accurately helped fill the lack of information about correlations within VRM variables. SHAP analyses highlighted that working pressure and input gas rate with positive relationships are the key factors influencing energy consumption. eXtreme Gradient Boosting (XGBoost) as a powerful predictive tool could accurately model energy representative factors by R-square ever 0.80 in the testing phase. Comparison assessments indicated that SHAP-XGBoost could provide higher accuracy for VRM-CL structure than conventional modeling tools (Pearson correlation, Random Forest, and Support vector regression.

Place, publisher, year, edition, pages
Springer Nature, 2022. Vol. 12, no 1, article id 7543
National Category
Metallurgy and Metallic Materials Mineral and Mine Engineering
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-90650DOI: 10.1038/s41598-022-11429-9ISI: 000792845300077PubMedID: 35534588Scopus ID: 2-s2.0-85129516931OAI: oai:DiVA.org:ltu-90650DiVA, id: diva2:1658245
Note

Validerad;2022;Nivå 2;2022-05-16 (joosat);

Available from: 2022-05-16 Created: 2022-05-16 Last updated: 2023-09-05Bibliographically approved

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Chelgani, Saeed Chehreh

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