Detailed analysis of iso-Pentanol combustion chemistry in flames

Arnas Lucassen, Julia Warkentin, Nils Hansen, Sungwoo Park, Mani Sarathy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In this study, two flames of iso-pentanol were stabilized on a 60-mm flat flame burner at a low pressure of 15 Torr and analyzed by a flame-sampling molecular-beam setup coupled to a mass spectrometer (MBMS). Singlephoton ionization by synchrotron-generated vacuum-UV radiation with high energy resolution (E/ΔE ∼0.04 eV) and/or electron ionization was combined with a custom-built reflectron time-of-flight spectrometer providing high mass resolution (m/Δm = 3000). Mole fraction profiles for more than 40 flame species and the temperature profile were determined experimentally. The flame temperatures were measured using OH laser induced fluorescence and used as input parameters for the model calculations. The experimental dataset was used to guide the development of a combustion chemistry model for the high-temperature oxidation chemistry of iso-pentanol. The chemical kinetic model is herein validated for the first time against detailed speciation profiles of combustion intermediates and product species including C5 branched aldehydes, enols, and alkenes. In a separated study, the model was validated against a number of different datasets including low and high temperature ignition delay in rapid compression machines and shock tubes, jet stirred reactor speciation data, premixed laminar flame speed, and opposed-flow diffusion flame strained extinction.
Original languageEnglish (US)
Title of host publication8th US National Combustion Meeting 2013
PublisherWestern States Section/Combustion Institute
Pages3483-3488
Number of pages6
ISBN (Print)9781627488426
StatePublished - Jan 1 2013

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