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Title: A chemical kinetic mechanism for combustion and flame propagation of CH2F2/O2/N2 mixtures

Journal Article · · International Journal of Chemical Kinetics
DOI: https://doi.org/10.1002/kin.21549 · OSTI ID:1976353
ORCiD logo [1];  [2]; ORCiD logo [2]
  1. National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States); OSTI
  2. National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)
+ Show Author Affiliations

Here in this work, we compiled and evaluated rate expressions for reactions relevant to the decomposition and combustion of CH2F2 (difluoromethane, refrigerant R-32) in CH2F2/O2/N2 flames. The recommended values have been used in premixed flame calculations, reported elsewhere, to model experimentally derived burning velocities determined using a constant volume spherical flame method. In this work, we also provide a detailed description of the reaction pathways for decomposition and combustion of CH2F2. This work is part of a larger effort at NIST to characterize and predict the flammability of new refrigerant working fluids and their blends for consideration as replacements of current refrigerants with high global warming potentials.

Research Organization:
National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0007615
OSTI ID:
1976353
Journal Information:
International Journal of Chemical Kinetics, Journal Name: International Journal of Chemical Kinetics Journal Issue: 3 Vol. 54; ISSN 0538-8066
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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