TY - JOUR
T1 - Correlations for flame speed and explosion overpressure of dust clouds inside industrial enclosures
AU - Silvestrini, M.
AU - Genova, B.
AU - Leon Trujillo, F. J.
PY - 2008/7/1
Y1 - 2008/7/1
N2 - Explosion relief vents on enclosures in powder-handling plants are currently designed according to technical standards that in some situations may overestimate the required vent area significantly. These technical standards sometimes do not take into account the real work conditions of industrial plants (e.g. turbulence intensity) and therefore explosion worst cases are not always foreseeable. The availability of methods either for the evaluation of explosion overpressure or sizing of relief vents, with involvement of the pre-ignition turbulence, could be very useful for a better estimate of these quantities. In this work two empirical correlations are presented: the first one allows the calculation of the flame speed and the burning velocity starting from the explosion indices KSt and Pmax of the standardized 20-l sphere test. The second allows either the calculation of the explosion overpressure or the sizing of relief vents of an enclosure.
AB - Explosion relief vents on enclosures in powder-handling plants are currently designed according to technical standards that in some situations may overestimate the required vent area significantly. These technical standards sometimes do not take into account the real work conditions of industrial plants (e.g. turbulence intensity) and therefore explosion worst cases are not always foreseeable. The availability of methods either for the evaluation of explosion overpressure or sizing of relief vents, with involvement of the pre-ignition turbulence, could be very useful for a better estimate of these quantities. In this work two empirical correlations are presented: the first one allows the calculation of the flame speed and the burning velocity starting from the explosion indices KSt and Pmax of the standardized 20-l sphere test. The second allows either the calculation of the explosion overpressure or the sizing of relief vents of an enclosure.
KW - Burning velocity
KW - Dust explosion
KW - Empirical correlations
KW - Silos
KW - Turbulence
KW - Vent sizing
UR - http://www.scopus.com/inward/record.url?scp=44349139641&partnerID=8YFLogxK
U2 - 10.1016/j.jlp.2008.01.004
DO - 10.1016/j.jlp.2008.01.004
M3 - Artículo (Contribución a Revista)
AN - SCOPUS:44349139641
SN - 0950-4230
VL - 21
SP - 374
EP - 392
JO - Journal of Loss Prevention in the Process Industries
JF - Journal of Loss Prevention in the Process Industries
IS - 4
ER -