Search
Now showing items 7261-7270 of 8475
Professional Staff / Turbomachinery Symposium (36th : 2007)
(Texas A&M University. Turbomachinery Laboratories, 2007)
A High Bearing Temperature Troubleshooting of Centrifugal Heat-Pump Compressor
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
On September 2013, a centrifugal heat-pump compressor began showing an abnormal temperature rise in its tilting pad journal bearing (DE-side). The phenomenon appeared when increasing the rotor speed following a process of ...
Sub-Synchronous Vibration on Centrifugal Compressor with Tilt-Pad Bearings
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
This presentation provides a success story that sub- synchronous vibration was eliminated on a centrifugal compressor. The sub-synchronous vibration originally occurred at high operational speed on this 5-stage hydrogen ...
VFD Induced Coupling Failure
(Texas A&M University. Turbomachinery Laboratories, 2008)
A catastrophic failure of a high performance disc coupling connecting the speed increaser and LP compressor in a VFD controlled 18,300 HP motor/speed increaser/LP compressor/HP compressor train, led to months of reduced ...
Vibration Analysis for Turbomachinery
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Turbomachinery requires a higher level of vibration analysis than general purpose machinery. This includes identifying natural frequencies or modes of a system to determine if a potential resonance occurs. The complexity ...
A New Method of Accurately Identifying the Location and Movement of Forward and Backward Bending Modes Using Magnetically Suspended Rotor Systems
(Texas A&M University. Turbomachinery Laboratories, 2008)
Rotordynamic calculations done on most turbomachinery often discount or even completely ignore the “backward” modes. In fact, many rotating equipment engineers have never observed a backward mode, leading some to doubt ...
Continuous Control of Lube Oil Water Contamination - Never get Surprised Again
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Problem: High water contamination of lube oil damaged a turbine driven process blower on multiple occasions. Traditional solution:• Monitor oil for milky appearance – only qualitative • Drain free water from reservoir, but ...
Resolving Cyclic Vibration on an Instrument Air Compressor
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Instrument Air Compressors are considered critical equipment in the plants, supplying compressed air to the instrumentations in the field. This case study focuses on cyclic vibration phenomena observed in the 2nd and 3rd ...
Adapting Hermetically Sealed Compressor Technology To Deal With Sour And Corrosive Gases
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
The Oil & Gas industry faces increasing challenges to meet growing energy demands with the most sustainable exploration and production techniques. Compressor manufacturers have responded to these challenges with the ...
Performance Test Of A Liquid Tolerant Impeller And Validation Of Wet Compression Predictive Model
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Standard centrifugal compressors are designed to process gas with limited liquid content: significant presence of liquid may be responsible for the rapid erosion and corrosion of both static and rotating components that ...