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Heat Radiation of Burning Hydrogen Air Mixtures Impurified by Organic Vapour and Particles

Abstract

Experiments were performed to investigate the radiative heat emission of small scale hydrogen/air explosions also impurified by minor amounts of inert particles and organic fuels. A volume of 1.5 dm3 hydrogen was injected into ambient air as free-jet and ignited. In further experiments simultaneously inert Aerosil and combustible fuels were injected into the blasting hydrogen/air gas cloud. Fuels were a spray of a solvent (Dipropyleneglycol-methylether) and dispersed particles (milk powder). The combustion was observed with a DV camcorder, an IR camera and two different fast scanning spectrometers in NIR and IR range using a sampling rate of 100 spectra/s. The intensity calibrated spectra were analyzed using ICT-BaM code to evaluate emission temperature and intensity of H2O, CO2, CO, NO and soot emission. Using the same code combined with the experimental results total heat emission of such explosions was estimated.

Related subjects: Safety
Countries: Germany
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2007-09-17
2022-05-29
http://instance.metastore.ingenta.com/content/conference325
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Heat Radiation of Burning Hydrogen, Air Mixtures Impurified by Organic Vapour and Particles

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