Caracterización de la tasa de liberación de calor en los cilindros de un motor de generación a gas natural de 2 MW.
DOI:
https://doi.org/10.15649/2346030X.581Palabras clave:
tasa de liberación de calor, motor de generación, gas natural, cámara de combustión, modelizado de valor medioResumen
Desarrollar modelos matemáticos para los motores de generación de energía más confiables que permitan proponer un uso eficiente de los combustibles y aumentar la eficiencia de conversión energética, se ha convertido en uno de los principales objetivos de los trabajos de investigación en el área. Con el fin de estudiar el fenómeno liberación de calor en los cilindros de un motor a gas natural J612 Jenbacher de 2 MW a partir de variables medias disponibles en registros operacionales, se ha propuesto un modelo semifísico a partir de balances de masa, energía, ecuaciones constitutivas y regresiones estadísticas. Los resultados muestran que a partir del modelo propuesto del calor rechazado con un coeficiente de determinación de 0.99, el permiten alcanzar un error relativo máximo de 2% en modo isla y del 4% operando en red para la estimación de la temperatura de los gases a las salidas de los cilindros. Así mismo, el modelo permite determinar la fracción de calor perdido en los cilindros en función de la energía aportada por el gas natural.
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