Mainstream Engineering studies oxygen-enriched JP-8 flame structure

  • 15-Jan-2010 03:10 EST
Mainstream Engineering flame.jpg

Flat-flame burner experiment used to study flame structure at Mainstream Engineering.

Mainstream Engineering Corp. (MEC) is collaborating with the Florida Institute of Technology in the study of oxygen-enriched flames with JP-8, a kerosene-based fuel used by the military for all engines, stoves, and burners. Funding is through the Office of Naval Research. Oxygen-enriched combustion is expected to substantially improve the performance of MEMS-based micro-combustors needed for micropower generation, according to MEC, but a solid fundamental understanding of oxygen-enriched combustion chemistry and the associated flame properties is still needed. This study will experimentally investigate the flame structure, flame speed, flammability limits, quenching distance, and thermo-acoustic noise of premixed, oxygen-enriched flames of JP-8 and a well-established surrogate. The measured data will be used to construct and validate a skeletal reaction mechanism for the combustion of the JP-8 surrogate (n-decane) under elevated oxygen concentrations. The reaction mechanism will then be used to design an oxygen-enriched, micro-scale combustor for MEMS power generation. MEC says that oxygen-enriched micro-combustors have the potential for compatibility with logistics fuels and elimination of the need for expensive platinum catalysts.

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