Development and Validation of a Mechanism for Flame Propagation in R-32/Air Mixtures

Published

March 7, 2018

Author(s)

Donald R. Burgess Jr., Jeffrey A. Manion, Robert R. Burrell, Valeri I. Babushok, Michael J. Hegetschweiler, Gregory T. Linteris

Abstract

A mechanism for the combustion of the refrigerant R-32 (CH2F2) in air mixtures was developed and validated through comparisons with measured flame speeds for a range of equivalence ratios (0.9 to 1.4) and pressures (1 to 3 bar) using a constant-volume spherical flame method. Premixed flame calculations were performed and analyzed to identify primary species and reactions contributing to flame speeds and combustion. We found that there were only three HFC reactions that contributed significantly to flame speeds. Their rate constants were optimized within uncertainty limits and the model showed excellent agreement (

Proceedings Title

Combustion Institute Eastern States Spring Meeting

Conference Dates

March 4-7, 2018

Conference Location

State College, PA

Pub Type

Conferences

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Keywords

Chemical kinetics, Refrigerant flammability, Burning velocity, Hydrofluorocarbons

Chemical engineering and processing, Theoretical chemistry and modeling, Fire modeling and Materials flammability

Citation

Burgess, D. , Manion, J. , Burrell, R. , Babushok, V. , Hegetschweiler, M. and Linteris, G. (2018), Development and Validation of a Mechanism for Flame Propagation in R-32/Air Mixtures, Combustion Institute Eastern States Spring Meeting, State College, PA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925278 (Accessed October 10, 2021)