Transcription of lblin. - Engineering Dynamics
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lblin. - Engineering Dynamics
motor - Generator Vibration ProblemsEncountered'When Restaging an FCCU TurboexpanderbyFred R. SzenasiEngineering Dyna,mics IncorporatedThis paper describes the solution of a vibration problem which resulted from the conver-sion of a single-stage power-recovery turbo expander train in an FCCU to a two-stage turboexpander. Details of the equipment train and operating speeds are given in Figure 1. Duringthe start up of the upgraded expander train, high vibrations (in excess of 10 mils peak-peak)were experienced by the motor -generator. These high vibrations caused the unit to shut downas soon as it reached rated of high vibrations, the train was not able to operate for any length of time, however,it was operated long enough to obtain data to balance the motor -generator to allow furtherinvestigation of the problem.
Motor- Generator Vibration Problems Encountered'When Restaging an FCCU Turboexpander by Fred R. Szenasi Engineering Dyna,mics Incorporated This paper describes the solution of a vibration problem which resulted from the conver- sion of a single-stage power-recovery turbo expander train in an FCCU to a two-stage turbo …
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