Abstract
A novel methodology for studying autoignition of pre-vaporized hydrocarbons at nondilute conditions in a high-pressure flow reactor has been developed. In this methodology, the minimum equivalence ratio required for ignition at specific conditions of pressure, temperature and residence time was found. Iso-octane was vaporized with a hydrogen/oxygen/argon preburner and rapidly mixed in a high pressure flow reactor. Ignition was studied at pressures of 15, 17.5, 20, and 22.5 atm, for a temperature range of 650-850K. Residence times of approximately 70, 100, 125, 155, and 175 ms were investigated over equivalence ratios ranging from 0.25 to 0.8. The negative temperature coefficient (NTC) region for autoignition was observed over these conditions, where an inverse equivalence ratio dependence at varying pressures and residence times was shown. Results show qualitative agreement with a recent chemical kinetics model from Lawrence Livermore National Laboratory, for the conditions studied in this work.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
