Revisión, observaciones y consideraciones sobre la erosión a alta temperatura en PS TBC para inspección técnica en turbinas a gas

  • Augusto César Barrios Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • Gabriel Jaime Ovalle Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • José David Acosta Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • Andrés Felipe Sánchez Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • David Alejandro Marulanda Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • Óscar Alejandro Arroyave Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • Freddy Jiménez Navas Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
  • Carlos Mario Serna Grupo de Tribología y Superficies, Universidad Nacional de Colombia sede Medellín
Palabras clave: Barreras Térmicas, erosión, álabe de turbina, inspección en turbinas, TGO, delaminación, TMF, CTE, coeficiente de expansión térmica

Resumen

La erosión es considerada como la segunda causa de falla en turbinas de generación y es un factor que limita el tiempo en operación de sus componentes. En el mantenimiento preventivo de estos equipos existen técnicas clásicas para determinar fallas en campo. Estas son: Inspección con boroscopio, con corrientes de Eddy y radiografías. Sin embargo, el reto consiste en correlacionar las microestructuras erosionadas de las barreras térmicas TBC con los modos de falla en los álabes de primera etapa y las cámaras de combustión. Este trabajo trata de aproximarse a los estudios científicos en erosión para tener criterios de evaluación en las inspecciones técnicas y en la predicción de la vida útil de los componentes. La primera parte consta de la caracterización de las superficies erosionadas del liner o combustor y los álabes de primera etapa obtenidos de una turbina GE7FA usada por EPM en la generación de energía. La segunda parte cubre la relación entre los hallazgos en la caracterización y la literatura, y reportes técnicos 

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Publicado
2013-12-30
Cómo citar
Barrios, A. C., Ovalle, G. J., Acosta, J. D., Sánchez, A. F., Marulanda, D. A., Arroyave, Óscar A., Jiménez Navas, F., & Serna, C. M. (2013). Revisión, observaciones y consideraciones sobre la erosión a alta temperatura en PS TBC para inspección técnica en turbinas a gas. Revista CINTEX, 18, 297-324. Recuperado a partir de https://revistas.pascualbravo.edu.co/index.php/cintex/article/view/62
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