The burning of ?-azidoethanol droplets at and below atmospheric pressure

Golovko, V.V.; Kanashin, S. P.; Florko, A. V.; Okhrimenko, N. A.

doi:10.1007/bf00843127

Cited by 2 publications

(1 citation statement)

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“…As for the experimental study, optical spectrum investigations have been applied to acquire component concentration and gas phase temperature distributions in the combustion zone of a single magnesium particle. [12] Similarly, the radiation bands of the Mg and MgO vapor were observed in the research on the magnesium particle combustion in air [13] and the aerosol combustion in microgravity. [14] The PLIF images obtained in Ref.…”

Section: Introductionmentioning

confidence: 79%

Combustion of a single magnesium particle in water vapor

et al. 2015

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The combustion of magnesium particles in water vapor is of interest for underwater propulsion and hydrogen production. In this work, the combustion process of a single magnesium particle in water vapor is studied both experimentally and theoretically. Combustion experiments are conducted in a combustor filled with motionless water vapor. Condensation of gas-phase magnesia on the particle surface is confirmed and gas-phase combustion flame characteristics are observed. With the help of an optical filter and a neutral optical attenuator, flame structures are captured and determined. Flame temperature profiles are measured by an infrared thermometer. Combustion residue is a porous oxide shell of disordered magnesia crystal, which may impose a certain influence on the diffusivity of gas phases. A simplified one-dimensional, spherically symmetric, quasi-steady combustion model is then developed. In this model, the condensation of gas-phase magnesia on the particle surface and its influence on the combustion process are included, and the Stefan problem on the particle surface is also taken into consideration. With the combustion model, the parameters of flame temperature, flame diameter, and the burning time of the particle are solved analytically under the experimental conditions. A reasonable agreement between the experimental and modeling results is demonstrated, and several features to improve the model are identified.

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Section: Introductionmentioning

confidence: 79%