CO2 laser-induced combustion of ammonium dinitramide (ADN)

B. L. Fetherolf, Thomas Litzinger

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Abstract

Experimental studies of CO2 laser-induced combustion of ammonium dinitramide (ADN) were performed to determine the key physical and chemical processes involved. Experimental conditions covered the range of 0.1-5.0 atmospheres in argon and incident laser heat fluxes of 20 to 300 W/cm2. Quantitative gaseous species measurements obtained by microprobe sampling and mass spectrometer analysis are presented in the form of spatial and temporal profiles. Both gas-phase temperature profiles and surface temperatures measured with fine-wire thermocouples are given. Observations made with a high-magnification video recording system and Schlieren photography of the physical phenomena involved are also discussed. Three distinct regimes of behavior were identified during testing: laser-induced pyrolysis, laser- induced regression, and laser-assisted combustion. The physical, thermal, and chemical characteristics of these three regimes are described.

Original languageEnglish (US)
Pages (from-to)515-530
Number of pages16
JournalCombustion and Flame
Volume114
Issue number3-4
DOIs
StatePublished - Jan 1 1998

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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