Mathematical model for refinery furnaces simulation
Resumen
En este trabajo se presenta el desarrollo de un modelo matemático para simulación de hornos de refinería, el cual consiste en dos sub-modelos diferenciados, uno para simular el lado proceso y otro para simular el gas de combustión. El lado proceso es apropiadamente modelado con un perfil de velocidad plano debido a la alta velocidad del fluido dentro de los tubos. El lado gas de combustión está compuesto por una cámara de radiación y una sección de convección, ambas unidas por una zona de tubos de choque. Los dos sub-modelos interactúan a través de la temperatura de superficie de los tubos, siendo esta un dato de entrada al sub-modelo del lado gas de combustión y es re-calculada por el sub-modelo del lado proceso. Este procedimiento es ejecutado en un ciclo iterativo hasta que cierta tolerancia es alcanzada. Este modelo matemático ha demostrado ser una herramienta muy útil para el análisis y simulación de hornos.
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