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Now showing items 191-200 of 220
Conversion from Centrifugal to Rotary Positive Displacement Pumps
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A major U.S. pipeline company was experiencing multiple problems at a crude pipeline intermediate pump station. The application seemed ideal for a rotary positive displacement (PD) pump. Working with a vendor and seeing a ...
Investigation and Resolution of Propane Compressor High Axial Position Alarm
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Propane compressor in Propane Dewaxing Unit was experiencing intermittent high axial spikes coinciding with the chiller swing. The axial spikes were due to compressor surge caused by sudden drop in
flow during chiller ...
Monitoring Vibration and Other Critical Machine Conditions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Suggested Topics:
Condition monitoring methods
Effectiveness of condition monitoring on rotating equipment
Value of, and ROI of, condition-based monitoring
Vertical pump monitoring
Below ground monitoring in vertical ...
Lubrication
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Suggested Topics:
Introduction
Plant Wide Maintenance and Problems
Effective Maintenance Programs
Best Practices
Oil Varnish
Oil / Grease
Type and Selection
Testing and Maintenance Including Frequency
Mixing and ...
Vibration Problems and Solutions in Pumps and Turbomachinery
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This course presents analysis and testing methods for pumps and turbomachinery. Focus is on centrifugal pumps of all types, centrifugal compressors, axial compressors, fans, steam turbines and gas turbines. Rotordynamics ...
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 ...
Gear Box Bull Gear High Vibration due to Fluid Instability and Analytical Evaluation of New Bearing Design
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Three shaft Gear Box upgraded to meet Screw compressor model upgrade. Gear Box was installed, as a part of compressor upgrade project, with Bentley Nevada 3500 Shaft vibration protection facility and observed trip on ...