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Ingeniería e Investigación

Print version ISSN 0120-5609


HERRERA MUNERA, Bernardo Argemiro; AMELL ARRIETA, Andrés Adolfo  and  CADAVID SIERRA, Francisco Javier. Numerical models for the phenomenological study of flameless combustion. Ing. Investig. [online]. 2009, vol.29, n.2, pp.70-76. ISSN 0120-5609.

Flameless combustion is a technique which offers environmental advantages such as lower than 100 ppm NOx and CO emissions due to below 200 K temperature gradients. Flameless combustion also supplies higher than 70% energy efficiency. Knowledge of the phenomena in this combustion regime has been facilitated by using numerical simulation. This paper reviewed the specialised literature about the most commonly used turbulence, combustion, heat transfer and NOx formation models in modelling flameless combustion with CFD codes. The review concluded that the k-ε standard model is the most used for turbulence. Finite rate/eddy dissipation with modified constants and eddy dissipation concept models are suitable for combustion reactions, discrete ordinates and weighted sum gray gas (WSGG) models are used for radiation and thermal, prompt and N2O intermediate models are used for NOx.

Keywords : numerical simulation; CFD; flameless combustion; turbulence; radiation; NOx.

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