Palabras clave
análisis exergético
Termodinámica
trabajo perdido
Segunda Ley
Cómo citar
Resumen
La exergía es un concepto que, desde su invención hace sesenta años, ha ido ganando popularidad y extendiéndose más allá de las aplicaciones de Ingeniería. Sin embargo, un estudio a profundidad del concepto revela la existencia de problemas e inconsistencias, tanto de tipo teórico como de aplicación. En este artículo se discuten seis problemas identificados: notación ambigua, estados de referencia ambiguos, aplicabilidad a procesos reales, redundancia con respecto a otras propiedades termodinámicas, inconstencia entre los conceptos de exergía y de trabajo perdido, y la aplicabilidad de los resultados del análisis exergético. Se proponen posibles caminos de solución para estos problemas, siendo el quinto el de más difícil solución porque requiere redefinir qué es la exergía.Citas
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