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김영수,배정일,서용칠,신창섭 한국산업안전학회 1993 한국안전학회지 Vol.8 No.4
The explosion characteristics of nonhomogeneous LPG-Air mixtures was measured in a cylindrical vessel and a pipe. The maximum explosion pressure, the maximum rate of explosion pressure rise, and the flame propagation velocity were measured and compared with that of homogeneous explosion by changing the effective factors on the explosion of nonhomogeneous mixtures such as pressure difference, effusion time and delay time. Explosion was occured even in the lower concentration than the lean flammability limit of mixture. The maximum explosion pressure was increased with increase of LPG concentration, however, the maximum explosion pressure rise was not in the nonhomogeneous explosion. And the flame propagation velocity was decreased with nonhomogeneity, however, the maximum explosion pressure was always above 0.7㎏/㎠.