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Modeling of Combustion of Fluorine-Containing Refrigerants



Valeri I. Babushok, Donald R. Burgess Jr., Dennis Kim, Michael Hegetschweiler, Gregory T. Linteris


A gas-phase chemical kinetic model for the combustion of C1-C3 fluorine-containing refrigerants is presented, including a list of relevant species, their thermodynamic and transport properties, and the Arrhenius parameters for their reactions. Also included are tables of available experimental data in the literature for the laminar burning velocities for these HFC refrigerants and their mixtures. A comparison is made between the experimental data and predicted burning velocities as a function of the fuel-air equivalence ratio for the refrigerants. The model has been developed for the refrigerants: R-32, R-125, R-134a, R-152a, R-143, R-143a, R-1234yf, R-1234ze(E), R-1243zf and their mixtures. Agreement between predicted and measured burning velocity is very good for most of the refrigerant mixtures, and reasonably good agreement for a few.
Technical Note (NIST TN) - 2170
Report Number


Burning velocity, flame speed, GWP, enthalpy of formation, global warming potential, hydrofluorocarbons, chemical kinetic model, low-GWP refrigerants, refrigerant flammability, R-1234yf, R-1234ze(E), R-1243yf, R-134a, R-152a, R-125, R-32, R-143, R-143a, fluoropropenes.


Babushok, V. , Burgess Jr., D. , Kim, D. , Hegetschweiler, M. and Linteris, G. (2021), Modeling of Combustion of Fluorine-Containing Refrigerants, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online],, (Accessed April 20, 2024)
Created November 17, 2021, Updated November 29, 2022