An updated model and discussion of modeling challenges in high-pressure H2/O2 flames

M. P. Burke, M. Chaos, Yiguang Ju, F. L. Dryer

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

Abstract

An updated H2/O2 chemical-kinetic model based on that of Li et al. [Int. J. Chem. Kinet. 36 (2004) 566-575] is presented to address the difficulties observed in modeling recent high-pressure flame data. Emphasis is placed on assessing the current state of knowledge of relevant elementary processes and the approach needed to achieve a rigorous solution that yields quantitative predictive capability across a wide range of conditions. The primary intent of the updated model is to incorporate a number of rate constant expressions that are more consistent with elementary reaction studies. However, substantial fundamental issues and rate constant uncertainties still remain. The updated model reproduces the homogeneous validation targets used in Mueller et al. [Int. J. Chem. Kinet. 31 (1999) 113-125] and Li et al., flame speed validation targets used in Li et al. within ∼10%, and the recent dilute high-pressure burning rate measurements of Burke et al. [Combust. Flame (2010) doi:10.1016/j.combustflame.2009.08.009] within ∼25% (compared to ∼50% for Li et al.).

Original languageEnglish (US)
Title of host publicationWestern States Section of the Combustion Institute Spring Technical Meeting 2010
PublisherWestern States Section/Combustion Institute
Pages637-648
Number of pages12
ISBN (Electronic)9781617384196
StatePublished - Jan 1 2010
EventWestern States Section of the Combustion Institute Spring Technical Meeting 2010 - Boulder, United States
Duration: Mar 22 2010Mar 23 2010

Publication series

NameWestern States Section of the Combustion Institute Spring Technical Meeting 2010

Other

OtherWestern States Section of the Combustion Institute Spring Technical Meeting 2010
CountryUnited States
CityBoulder
Period3/22/103/23/10

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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    Burke, M. P., Chaos, M., Ju, Y., & Dryer, F. L. (2010). An updated model and discussion of modeling challenges in high-pressure H2/O2 flames. In Western States Section of the Combustion Institute Spring Technical Meeting 2010 (pp. 637-648). (Western States Section of the Combustion Institute Spring Technical Meeting 2010). Western States Section/Combustion Institute.