The paper outlines the operating and maintenance history, of the industrial type of large gas turbines, on the Ekofisk to Emden gas pipeline in the North Sea. The traditional preventive maintenance procedures are presented. They are supported with a table giving particulars such as reliability, availability, use factor etc. for each of the 10 turbines. A description of the types of failures which have occurred over the 9 years of operation is given. There is a short discussion about the causes of the failures. An off-line condition monitoring system based on the use of a main frame computer is discussed. The author gives an example of how this program was used to detect a combustion problem. Finally the author describes how an on-line, minicomputer supervised, condition monitoring system was introduced on Ekofisk as a pilot study. The intention being in the long run, to change from inspections based on fixed fired hours intervals, to maintenance based on trend curve predictions, which take account of the actual performance of the machines.
Operating and maintenance practices for heavy industrial gas turbines on the Ekofisk to Emden gas pipeline
Betrieb und Instandhaltung der Industrie-Gasturbinen der Ekofisk-Emden-Gas-Pipeline
1987
19 Seiten, 3 Bilder
Aufsatz (Konferenz)
Englisch
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