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
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

Revista:
Powder Technology

ISSN: 0032-5910

Ano de publicación: 2015

Volume: 272

Páxinas: 132-141

Tipo: Artigo

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

Outras publicacións en: Powder Technology

Indicadores

Citas recibidas

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

JCR (Journal Impact Factor)

  • Ano 2015
  • Factor de impacto da revista: 2.759
  • Factor de impacto sen autocitas: 2.251
  • Article influence score: 0.587
  • Cuartil maior: Q1
  • Área: ENGINEERING, CHEMICAL Cuartil: Q1 Posición na área: 26/135 (Edición: SCIE)

SCImago Journal Rank

  • Ano 2015
  • Impacto SJR da revista: 0.939
  • Cuartil maior: Q1
  • Área: Chemical Engineering (miscellaneous) Cuartil: Q1 Posición na área: 43/448

Scopus CiteScore

  • Ano 2015
  • CiteScore da revista: 4.7
  • Área: Chemical Engineering (all) Percentil: 87

Dimensions

(Datos actualizados na data de 06-01-2024)
  • Total de citas: 24
  • Citas recentes (2 anos): 4
  • Field Citation Ratio (FCR): 2.96

Resumo

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.