| Continuous Online Monitoring of Dielectric Parameters for Engine Oils: Identification of Critical Operation Conditions of Efficient Diesel and Gas Engines for Live Time Enhancement Manfred Mauntz1; Jorn Peuser1; 1CMC INSTRUMENTS GMBH, Eschborn, Germany; PAPER: 56/Energy/Regular (Oral) SCHEDULED: 11:45/Thu. 24 Oct. 2019/Coralino ABSTRACT: The requirements of renewable energy for large industrial gearboxes as installed in wind turbines on and off shore rise. The same applies for efficient gas and diesel engines. A larger flexibility is required of these devices such as maximum operational reliability and a long lifetime. Thus, the requirements for oil and oil condition monitoring grow correspondingly. This presentation provides information about a novel online oil condition monitoring system that gives a solution to the mentioned priorities in the energy sector. The different mechanisms of oil parameter variation in gearboxes and engines are addressed; the data interpretation has to be redefined to the dominating effect. From this, the very sensitive measurement of conductivity kappa, relative permittivity epsilon, r, and temperature, T, enables the detection of small changes in the conductivity and dielectric constant of the corresponding oil composition. Therefore, the sensor system effectively controls the proper operation conditions of engines and gearboxes. 24/7 monitoring of the asset during operation enables specific preventive and condition-based maintenance which is independent of rigid inspection intervals. References: [1] P. Tchakoua, R. Wamkeue, M. Ouhrouche, F.S. Hasnaoui, T.A. Tameghe, G. Ekemb: Wind Turbine Condition Monitoring: State-of-the-Art Review, New Trends, and Future Challenges, Energies 2014,7, pp. 2595-2630, (2014) [2] Noria Corporation: The critical role of additives in lubrication, Machinery Lubrication June 2012, (2012) [3] M. Mauntz and U. Kuipers: Sensorsystem- Sensorsystem zur Messung von Komponenten der komplexen Impedanz elektrisch gering leitender und nichtleitender Fluide, dessen Realisierung und Anwendung, patent application no. 10 2008 047 366F.9, German Patent Office, Munich, (2008) [4] M. Mauntz, U. Kuipers and J. Peuser: New oil condition monitoring system, WearSense enables continuous, online detection of critical operating conditions and wear damage, Malaysian International Tribology Conference 2015 - MITC2015, Penang, Malaysia on November 16-17, 2015, Conference Proceedings, ISBN: 978-967-13625F-0-1, S. 179-180, (2015) |
