Detonation Decomposition of Acetylene at Atmospheric Pressure in the Presence of Small Additives of Oxygen
A. A. Shtertser, V. Yu. Ul'yanitskii, D. K. Rybin, I. S. Batraev
Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: pulsed gas detonation apparatus, acetylene-oxygen mixture, detonation initiation, cell size, products reactions, booster charge, hydrogen, nanosized detonation carbon, carbon footprint
Abstract
On a pulsed gas detonation apparatus (PGDA) at initial atmospheric pressure, a study was made of the process of initiation and detonation in acetylene-oxygen mixtures C2H2 + k O2, including those with a low content of oxygen near the upper concentration limit of detonation. The cell sizes, detonation velocities, and pressures in the detonation products were measured in the range k from zero to unity, and the composition of the detonation products was calculated. The upper limits of detonation in IGDA barrels with diameters of 14, 26, 46, and 104 mm and the volume of booster charges required to initiate detonation in the limiting modes are found. With regard to hydrogen energy, the technological chain methane ® acetylene ® hydrogen + nanosized detonation carbon is considered and an assessment is made of the characteristics of PGDA as a hydrogen generator.
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