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Detonation hazards of methane mixtures

Vasil'ev A.A., Valishev A.I., Vasil'ev V.A., Panfilova L.V., Topchian M.E.

Archivum Combustionis

2000

Vol. 20 nr 3-4

31-48

The data on detonation and explosive hazards of methane in a wide range of its concentration in mixtures with oxygen and air, and diluted by inert gases are presented. The critical energy of directet initiation of a multiheaded detonation wave is accepted as the main criterial parameter of detonation hazard of gaseous mixtures. The main hazard parameters were calculated with the help of the <> Computer Program. Calculated results are in good agreement with experimental data.

Detonation hazard of ammonia

Vasil'ev A.A., Valishev A.I., Vasil'ev V.A.

Archivum Combustionis

2000

Vol. 20 nr 3-4

49-58

The data on detonation and explosive hazards of ammonia in a wide range of its concentration in mixtures with oxygen, air and nitrous oxide are presented. The critical energy of direct initiation of a multifront detonation wave is accepted as criterial parameter of detonation hazards of gaseous mixtures. The main hazard parameters were calculated with the help of the <> Computer Program.

A new diffraction estimation of critical initiation energy of gaseous detonation

Vasil'ev A.A.

Archivum Combustionis

1998

Vol. 18 nr 1-4

149-156

The new criterion of detonation initiation is proposed: critical initiation energy E is equal to work of extending detonation products on layer length equal to the longitudinal cell size b of multifront detonation. Initial layer radius R gets as diffraction radius of detonation wave (diffraction on right angle) in the moment of collision of an axial rarefaction waves up to a gas charge axis. The formulas for the critical initiation energies for plane, cylindrical and spherical detonation waves are received. Calculated results ar well correlated with correct experimental data.