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CS07: Dry Screw Compressor Trip on Axial Displacement during Cold Start
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Dry Screw Compressor experienced HH axial displacement trip within 15 minutes after every cold start-upsince the MMS system upgrade in 2016• Failed attempt to successfully restart this compressor after every planned ...
CS29: Investigation & Solution of Steam turbine Governor Valve Repetitive Failure
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
3MW back pressure steam turbines has experienced a common and repetitivemechanical failure for its dual port steam governor valve Fracture surfaceanalysis at the failed valve stem reveals a distinctive sign of fatigue ...
T07: Shop Rotordynamic Testing Options, Objectives, Benefits and Practices
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Understanding the lateral rotordynamic behavior is critical indetermining the reliability/operability of rotating equipmentWhether examining a centrifugal pump or compressor, steam orgas turbine, motor or generator, rotating ...
L03: High Speed Balancing: API Acceptance Criteria, Pedestal Dynamics, and Unbalance Response Correlation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Acceptance criteria for high-speed balancing of turbomachinery are specified in API standards based on either pedestal velocity or shaft displacement, and these are discussed in detail Pedestal velocities are measured using ...
TB02: Assessing compression methods for increased reliability, flexibility and efficiency in gas processing plants
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Many of today’s gas processing plant operators face varying and often uncertainconditions This includes challenges such as the mode of operation and feed gasuncertainty For instance, gas processing plants can receive ...
CS26: Online Mitigation of Gearbox Bearing High Temperature due to Oil Varnishing
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
ThiscasestudypresentsanincidentofsuddentemperatureincreaseofabearinginaspecialpurposegearboxduringnormaloperationDetailsofthedirectcauseinvestigation,onlinemitigationandlongertermimprovementswillbesharedThecompressortrai ...
L04: Predicting, Understanding and Avoiding the Ekofisk Rotor Instability 40 Years Later
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
A re-examination of the well-known Ekofisk re-injection centrifugal compressor is presented Several opportunities makethis an ideal candidate to assess how well (or not) current design and analytical methods have evolved ...
CS27: Test set-up contribution into a generator mounted Epicyclic gear mechanical running test performance
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
This case study is describing the observations and the troubles shooting relative to a mechanical runningtest carried out on a generator mounted Epicyclic gearbox The specific gear architecture is requiring a fullintegration ...
L10: A FEM Approach to Predict Acoustic Resonance in Multistage Centrifugal Pump
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Acoustic resonance can develop within the hydraulic channels of the pump, especially in the long crossover channel of a multistagecentrifugal pump This phenomenon occurs when the hydraulic channel length is equal to the ...
CS24: Resolution of vibration step changes on a Steam Turbine Generator
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The machine train consists of a steam turbine of three casings (HP/IP, LP1 and LP2) coupled to a Generator with a base loadcapacity of 660MW running at 3600RPM Post a machine boiler event trip on October 22nd 2018, step ...