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Development of a numerical tool using an open source code for creating a safer working environment for the Swedish industries regarding dust explosions: Part report (from 2020-02-01 until 2021-01-31)
RISE Research Institutes of Sweden, Safety and Transport, Safety Research.ORCID iD: 0000-0002-6175-6595
RISE Research Institutes of Sweden, Safety and Transport, Safety Research.ORCID iD: 0000-0001-6758-6067
Chalmers University of Technology, Sweden.
2021 (English)Report (Other academic)
Abstract [sv]

Dammexplosioner är ett konstant hot mot de svenska industrier som hanterar material eller utför processer som skapar brännbart damm, såsom pelletstillverkare, livsmedelsindustri, metallindustri m.m. Det aktuella projektet syftar till att (i) utveckla välvaliderade numeriska modeller som kan ta hänsyn till de viktigaste förbränningsfenomenen, (ii) utveckla ett numeriskt verktyg baserat på en öppen källkod, och (iii) beräkna verkliga dammexplosionsscenarier i samråd med representanter för berörda industrier. Projektresultatet kan fylla kunskapsluckorna när det gäller förståelse för dammexplosioner, att uppskatta konsekvenser av dammexplosioner, ge rekommendationer för bättre konstruktion av byggnader och relevanta säkerhetssystem, och därmed ge personalen en säkrare arbetsmiljö. I slutet av det första och i början av det andra projektåret, har den utvecklade numeriska plattformen, som innehåller dammexplosionsmodellen validerats med de experimentella data för dammexplosioner i majsstärkelse i Leeds förbränningskärl under välkontrollerade experimentella förhållanden. Därefter har ett samarbete etablerats med Rembe Research and Technology Center i Tyskland för att applicera den utvecklade numeriska plattformen för att simulera en storskalig industriell dammexplosion. Parallellt med samarbetet med Rembe, har ett samarbete etablerats med Gexcon för att utföra en gemensam studie om dammexplosioner med det utvecklade verktyget i projektet och den kommersiella koden FLACS-DustEx.

Abstract [en]

Dust explosion is a constant threat to the Swedish industries which deal with combustible powders such as pellets producers, food industry, metal industry and so on. This project aims at (i) development of high-fidelity and well-validated models which address important combustion phenomena during a dust explosion, (ii) development of an efficient numerical tool based on an open source toolbox for predicting consequences of dust explosions and (iii) simulation of dust explosions in scenarios of process industries in cooperation with the reference group members of this project. The project result will improve the understanding of dust explosions, help the process industries in designing better vent system in case of dust explosion, and create a safer working environment. During the end of the first and the beginning of the second year, the developed numerical platform including the dust explosion model was validated against experimental data on corn starch dust explosion in a fan-stirred explosion vessel, obtained by Bradley et al. (1989), under well-controlled laboratory conditions. After that, a collaboration was established between the project members and Rembe Research and Technology Center in order to apply the developed numerical platform for simulating large-scale industrial vented dust explosions. In parallel with the collaboration with Rembe, a collaboration with Gexcon was established in order to perform a joint study of dust explosion modelling using the developed numerical platform and the commercial code FLACS-DustEx.

Place, publisher, year, edition, pages
2021. , p. 35
Series
afa försäkrings-rapport
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-56584OAI: oai:DiVA.org:ri-56584DiVA, id: diva2:1595059
Available from: 2021-09-17 Created: 2021-09-17 Last updated: 2024-04-09Bibliographically approved

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Huang, ChenLönnermark, Anders

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