CFD simulations to study parameters affecting dust explosion venting in silos

  1. Tascón, A. 1
  2. Aguado, P.J. 2
  1. 1 Universidad de La Rioja

    Universidad de La Rioja

    Logroño, España


  2. 2 Universidad de León

    Universidad de León

    León, España


Powder Technology

ISSN: 0032-5910

Year of publication: 2015

Volume: 272

Pages: 132-141

Type: Article

DOI: 10.1016/J.POWTEC.2014.11.031 SCOPUS: 2-s2.0-84916918548 WoS: WOS:000349573500013 GOOGLE SCHOLAR

More publications in: Powder Technology


Cited by

  • Scopus Cited by: 26 (24-02-2024)
  • Web of Science Cited by: 26 (29-10-2023)
  • Dimensions Cited by: 24 (06-01-2024)

JCR (Journal Impact Factor)

  • Year 2015
  • Journal Impact Factor: 2.759
  • Journal Impact Factor without self cites: 2.251
  • Article influence score: 0.587
  • Best Quartile: Q1
  • Area: ENGINEERING, CHEMICAL Quartile: Q1 Rank in area: 26/135 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2015
  • SJR Journal Impact: 0.939
  • Best Quartile: Q1
  • Area: Chemical Engineering (miscellaneous) Quartile: Q1 Rank in area: 43/448

Scopus CiteScore

  • Year 2015
  • CiteScore of the Journal : 4.7
  • Area: Chemical Engineering (all) Percentile: 87


(Data updated as of 06-01-2024)
  • Total citations: 24
  • Recent citations (2 years): 4
  • Field Citation Ratio (FCR): 2.96


Vented dust explosions in a 16.3m3 silo were simulated using a commercial CFD program. Simulations were carried out for vent panels without inertia and for a silo roof acting as a venting device, with inertia. For the latter, the influence of several parameters on the pressures generated was studied, including characteristics of the initial dust cloud, size and position of the dust cloud, and ignition location. In addition, different vent area sizes and activation pressures were studied. For large vent areas and low overpressures, the results showed that the negative pressures generated could be of the same magnitude as the overpressures. Several peaks in overpressure were identified along the pressure-time curves. The results showed the expected trends and agreed reasonably well with the standards on explosion venting. Although the standards seem to overestimate vent area sizes to some extent, pressures are very dependent on the initial conditions of the dust cloud, and more unfavourable scenarios than those considered in this study could easily arise, producing a stronger explosion and higher pressures. For the venting roof with inertia, the pressures and associated vent areas matched the NFPA 68 extremely well.