ESTUDIO NUMÉRICO DEL EFECTO DE LA PRESIÓN ATMOSFÉRICA SOBRE LA TRANSFERENCIA DE CALOR EN HORNOS DE ALTA TEMPERATURA

Alex M. García Vergara, Yefferson López Zuluaga, Andrés A. Amell Arrieta

Resumen


En este trabajo se evalúa mediante simulaciones CFD un horno de calentamiento con el objetivo de estudiar el efecto que tiene la presión atmosférica sobre la trasferencia de calor hacia la carga. El sistema fue evaluado para las presiones del nivel del mar y de la ciudad de Bogotá. Los flujos másicos de aire y combustible fueron corregidos para mantener la potencia y el factor de aireación igual para los dos casos, debido a que estos varían con la presión. Se encontró que el calentamiento de la carga se afectó poco por el cambio en la presión, sin embargo, la forma en que fluye el calor hacía la carga si varia, teniendo que la radiación de los gases aporta un 34% de la energía total que llega a la carga a una presión de 1 atm, mientras que a una presión de 0.74 atm, pasa a aportar un 24%.

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DOI: https://doi.org/10.24054/16927257.v0.n0.2018.3313

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