Accession Number : AD0258247

Title :   THE EFFECT OF PRESSURE ON IONIZATION IN GASEOUS DETONATION

Corporate Author : UTAH UNIV SALT LAKE CITY INST OF METALS AND EXPLOSIVES RESEARCH

Personal Author(s) : COOK,M.A. ; BRACKE,P.P. ; KEYES,R.T.

Report Date : 31 MAR 1961

Pagination or Media Count : 1

Abstract : Electrical conduction measurements within detonation waves in the gaseous systems of 2H2-O2-0.002 N2, 2H2-O2-N2; and 2CO-O2, were carried out over a range of detonation pressures extending to as high as 340 atm in order to determine the effect of pressure on ion density. The experimentally determined conductivities were compared with theoretical values that were calculated using Saha's equation to determine the equilibrium constants for the ionizing reactions. In the case of the 2H2-O2-0.002 N2 and 2H2-O2-N2 systems theory and experiment were found to agree at low pressure. However, a relatively abrupt rise with pressure of the experimental values above the theoretical ones occurred at about 20 and 50 atm for the 2H2-O2-0.002 N2 and the 2H2-O2-N2 systems, respectively. The difference between observed and computed values increased until at 250 atm the experimental electron densities were about 10 times greater than the calculated ones. (Author)

Descriptors :   *DETONATION WAVES, CARBON COMPOUNDS, DENSITY, DETONATIONS, ELECTRICAL CONDUCTIVITY, ELECTRONS, EXPLOSIONS, GAS IONIZATION, GASES, HIGH PRESSURE, HYDROGEN, IONIZATION, IONIZATION POTENTIALS, IONS, MEASUREMENT, MIXTURES, MONOXIDES, NITROGEN, OXIDES, OXYGEN, PRESSURE, THERMODYNAMICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE