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OPERATION OF CENTRIFUGAL COMPRESSORS IN CHOKE CONDITIONS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Centrifugal compressors are at times required to operate in or
near the choke region. Various limits of the degree of allowable
operation in choke have been established. Based on test data
and numerical data, the behavior ...
Resolving Intermittent Vibration Spikes on Steam Turbines
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Content: Background. Machine description. Data analysis. Initial Analysis & Recommendations. Machine Inspection results. Subsequent Mechanical Failure Analysis. Conclusions. Lessons Learned.
METS2 Short Course 3
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
METS2 Short Course 8
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
METS2 Short Course 4
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Unsteady Vibration Due to Cavitation in Mixed Flow Pumps
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
In regarding to the large vertical mixed flow pump for seawater supply pump, the authors experienced the strange excessive vibration: the vibration level intermittently changed and the peak frequency was the blade passing ...
Blade Failures on an Axial Compressor by Unexpected Gas Compositions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A fifteen stage axial compressor including a bleed extraction was subject to a major overhaul after nearly 20 years of trouble free operation. Shortly after recommissioning and resumption of the production the compressor ...
Large Vibrations on Centrifugal Compressor Caused by Inappropriate Operation During Mechanical Running Test
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
During the mechanical test of a centrifugal compressor, the rotor experienced a sudden increase of the radial vibrations. After re-start, the compressor showed unacceptably high vibrations.
The RCA revealed: The vibrations ...
Accurate Estimation of Start-Up Pulsating Torque of Direct On Line Synchronous Motors Driving Compressor Trains
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
In a compressor train driven by fixed speed synchronous motor (>17MW) was discovered a potential torsional problem on the input shaft of the hydraulic variable speed gear during the start-up phase when only low speed shaft ...