Abstract
Large scale experiments (50 m3) have been carried out on the initiation of detonation by means of a jet of hot combustion products. The effects of hydrogen concentration (18–30% vol.), jet orifice diameter (100–400 mm), and the mixture composition in constant volume explosion chamber (25–50%) were investigated. Both high enough hydrogen concentration and large enough jet size are necessary for detonation initiation. The minimum values are within the ranges of 20 to 25% vol. H2, and of 100 to 200 mm correspondingly. A minimum ratio of jet size and mixture cell width 12–13 is required for detonation initiation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Behrens U, Langer G, Stock M, Winkler-Bott (1991) Deflagration-detonation transition in hydrogen-air-steam mixtures. Nuclear Eng. Des. 130: 43–50
Berman M (1986) A critical review of recent large-scale experiments on hydrogen-air detonations. Nuclear Science and Engineering, 93: 321
Carnasciali F, Lee JHS, Knystautas R, Fineschi F (1991) Turbulent jet initiation of detonation. Comb. and Flame, 84: 170
Dorofeev SB, Kochurko AS, Chaivanov BB (1989) Detonation onset conditions in spatially nonuniform combustible mixtures. In: Proc. of 6th International Symp. on Loss Prevention and Safety Promotion in the Processes Industries, Oslo, v. 4, pp. 22-1–22-19
Dorofeev SB, Kochurko AS, Efimenko AA, Chaivanov BB (1994) Evaluation of the hydrogen explosion hazard. Nuclear Engineering and Design, 148: 305–316.
Dorofeev SB, Bezmelnitsin AV, Efimenko AA, et al. (1993a) Experimental study on hydrogen-air mixtures combustion behaviour under turbulent jet ignition at large scale. Report for US NRC NUREG/CR-6072, RRCKI-80-05/3, RRC “Kurchatov Institute”, Moscow
Dorofeev SB, Sidorov VP (1993b) Large scale fast turbulent deflagration experiments. Report for KFK-INR No 375861, RRC “Kurchatov Institute” Moscow
Knystautas R, Lee JHS, Moen IO, Wagner HG (1979) Direct initiation of spherical detonation by a hot turbulent gas jet. In: Proc. of 17th Symp. (International) on Combustion, The Combustion Institute, Pittsburgh, pp. 1235
Kanzleiter TF (1989) Multi-compartment hydrogen deflagration experiments in the Battelle-Frankfurt Model Containment, 17th Water Reactor Safety Information Meeting—89, Rockvill MD, USA
Moen IO, Bjerketvedt D, Jenssen A, Thibault PA (1985) Transition to detonation in large fuel-air cloud, Comb. and Flame, 61: 285
Sherman MP, Tieszen SR, Benedick WB, Fisk JW, and Carcassi M (1986) In: Progress in Astronautics and Aeronautics (Kuhl AL Ed.), The American Institute of Aeronautics and Astronautics Inc., Washington, 106: 66
Sherman MP, tieszen SR, Benedick WB (1989a) FLAME facility. The effects of obstacles and transverse venting on flame acceleration and transition to detonation for hydrogen-air-mixtures at large scale. NUREG/CR-5275, SAND85-12611, Sandia National Laboratories
Sherman MP, Tieszen SR, Benedick WB (1989b) Flame acceleration Studies in the Miniflame Facility, Sandia National Laboratories Report No. SAND89-089
Shildknecht M, et al. (1985) Flame propagation and pressure buildup in a free gas-air mixture due to jet ignition, Prog. Astonaut. Aeronaut. 94: 474–490
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dorofeev, S.B., Bezmelnitsin, A.V., Sidorov, V.P. et al. Turbulent jet initiation of detonation in hydrogen-air mixtures. Shock Waves 6, 73–78 (1996). https://doi.org/10.1007/BF02515190
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02515190