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Now showing items 51-60 of 754
Upgrading To Fully-Electric Actuation and Control of Steam Turbines
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
The use of an electric actuator for steam turbine governor valve operation is a cutting-edge technology in steam turbine control. With this design, the use of turbine oil for turbine speed control purposes is eliminated. ...
Innovative Design in Expander Wheel-Shaft Attachment Replaces Hirth Coupling for High Speed, High Temperature and High Power Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
Although this Case Study is focused on an Expander-Generator unit in a geothermal application, it’s findings can be used in all turbomachinery applications where other conventional shaft-wheel attachments are causing ...
Large Steam Turbine Vibration Resonance of Pedestal and Linkage System RCA, Detail Vibration Investigation/Measurement at Site and Countermeasures
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
A Large Steam Turbine had been in operation for several years and this
turbine experienced the wear damage of governor linkage.
Then, measured the vibration velocity profile on Governor side pedestal
to identify the ...
Root Cause Investigation of Sub-Synchronous Vibration in a Multi-stage Centrifugal Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Outline: Introduction. Findings. Root Cause Analysis. Modification. Validation of modification. Site confirmation test. Conclusion. Lesson learnt.
METS2 Short Course 5
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
METS2 Short Course 6
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
METS2 Short Course 7
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
Investigation of High Bearing Temperature in Centrifugal Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Suction side Journal bearing temperature increased to around 130 degC from 60 degC instantaneously. Further the temperature was decreased to 80 degC accompanied by increase in rotor vibration.(from 5 to 15 ?m p-p) •Bearing ...
Fundamentals of Fluid Film Thrust Bearing Operation and Modeling
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Widely used in turbomachinery, the fluid film thrust bearing is critical to the overall reliability of a machine. Their design complexity and application severity continue to increase, making it challenging for the plant ...
INFLUENCE OF IMPELLER SUCTION SPECIFIC SPEED ON VIBRATION PERFORMANCE
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
The most commonly used hard limitation for pump suction specific speed is 11,000 (US units). This hard limit grew out of the recommendations from a 1982 reliability study by J.L. Hallam (Hallam 1982). Concomitant testing ...