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Now showing items 141-150 of 221
Condition Monitoring of Turbomachinery with Internet-of-Things (IOT)
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Condition monitoring is one of the critical process in turbomachinery equipment. As a factory equipment, Turbormachinery mostly transfers data via controllers such as programmable-logic-controller (PLC). Parameters of the ...
Digitalisation in Medium Voltage Variable Speed Drive Systems to Increase Productivity in Oil & Gas Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
In this paper we talk about influence of digitalization in process industries and how it can be adapted to Medium Voltage drive systems. Various aspects of digitalization like monitoring, preventive maintenance and using ...
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 ...
A Review of the Critical Design Parameters for Labyrinth Type Separation Seals on Dry-gas-seals
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
An ethylene compressor experienced a dry-gas-seal (DGS) hang-up condition and a RCA concluded that a possible root- or contributing cause is lube oil passing the labyrinth type separation seal into the secondary DGS cavity, ...
Gas Seal Failures Caused by Axial Vibrations
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This case study describes the root cause investigation of 12 dry gas seal failures in three integrally geared centrifugal compressors over a period of 12 years. These compressors are in fuel gas booster service, supplying ...
Analysis and Countermeasures for Sideband of Gear Mesh Frequency(GMF) Induced by Shaft Fretting Corrosion in a Gearbox
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
CS deals with trouble shooting and solving a chronic fretting corrosion damage b/w a gear and shaft (shrink fit). The damage on the geared shaft always accompanied by an increase in the amplitude and frequency side bands ...
Steam Turbine with 0.9X Vibrations
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This 15 MW steam turbine/gearbox/4-pole generator train, following a recent overhaul, was showing unusual phenomenon of high level 0.9X vibration during shutdown, as well as power limits due to vibration level increase. ...
Investigation and Resolution of Governing Valve Linkage Failure for Compressor Drive Steam Turbine
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Fatigue failure of Governing Valve Linkage Rod end bearing and wear marks on several parts was observed on a extraction steam turbine (driving a centrifugal compressor) after it was in service for more than 9 year. The top ...
Cryogenic Fluid Pumping Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Calculating efficiency, power & considerations
Condition monitoring
Cryogenic pump system components
Accessories to cryogenic pump systems
Shaft supports: bushings, bearings
Rotordynamics
Balance requirements ...