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Determination of laminar flame speed of methaneair flames at subatmospheric conditions using the cone method and ch* emission

LONDOÑO, LUIS FERNANDO and LÓPEZ, CARLOS ESTEBAN and CADAVID, FRANCISCO and BURBANO, HUGO (2013) Determination of laminar flame speed of methaneair flames at subatmospheric conditions using the cone method and ch* emission. Dyna; Vol. 80, núm. 180 (2013); 130-135 DYNA; Vol. 80, núm. 180 (2013); 130-135 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

Resumen

Experimental measurements of laminar fl ame speed for premixed methane-air fl ames were carried out for different equivalence ratios at subatmospheric conditions, 852 mbar and 298 K. The fl ames were obtained using a rectangular port burner with a water cooler system necessary to maintain the temperature of the mixture constant. An ICCD camera was used to capture chemiluminescence emitted by OH-CH radicals present in the fl ame and thus defi ne the fl ame front. Laminar fl ame speed was calculated using the cone method and experimental results were compared with those reported by other authors and the numerical simulations made with the software CHEMKIN using the GRIMECH 3.0 mechanism. In this work it was found that decreasing the barometric pressure from 1013 mbar to 852 mbar generated an increase of 7% in the laminar fl ame speed.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:Spectroscopy, CH radicals, ICCD, laminar flame speed, chemiluminescence
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:28453
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :28 Junio 2014 10:32
Ultima modificación:18 Agosto 2014 18:19
Ultima modificación:18 Agosto 2014 18:19
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