Article
Application of multiscale entropy production theory to hydro-turbine maintenance
Fecha
2015-04-01Autor
Jaramillo, María
Cortés, María
García, Luis
Hernández, Estefanía
Estrada, Jorge
Cano, Eduardo
Institución
Resumen
Maintenance of hydro turbine would be easier if it could be measured the multi-scale of its sound and magnetic waves produced by the entropy, as an accepted indicator of the physical complexity of the system, it is proportional to the logarithm of the number of states in a thermodynamic system. The following methods were applied: Parametric solid modeling, FEA analysis, CFD simulation, CAD design & drafting, PLC & SCADA programming, protection engineering & testing, power quality testing and others techniques. This paper describes a new approach to qualify the final turbine well-working.
The obtained results showed that the time sound wave series obtaines from the turbine suggests a rise of the hydro-turbine complexity with aging. As well, several concepts and techniques to quantify the magnetic and sound wave signal entropy are presented, which are aimed to assess the turbine performance. Such concepts are explored and some entropy vs age plotting are depicted to show the behavior of the sound waves taken nearby the hydro–turbines and alternators located in Manizales-Colombia.