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Now showing items 41-50 of 115
Understanding Design Parameters That Affect Thermal Stability of High-Speed Turbo Machinery (Also Known As the Morton Effect)
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
At present, there are no commercially available codes in industry that have proven to reliably predict a rotors sensitivity to the Morton Effect. The Morton Effect refers to synchronous rotor instability due to non-uniform ...
Impeller High cycle fatigue failure on a Natural Gas Pipeline Compressor Following Choked Flow Operation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
The impeller of a natural gas pipeline compressor failed at the junction between the blade trailing edge and the hub.
A root cause analysis showed the machine had been operated beyond the compressor map right limit during ...
Steam Turbine Reoccurring Rubs, Troubleshooting and Corrective Action
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Rubs in steam turbines can be especially difficult to diagnose because the vibration signature can manifest differently depending on the location, severity, rotordynamics, machine design and bear similarities to other ...
High Vibration Due to Steam Turbine Deposits
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This presentation provides a case study how to correctly deal with increased vibration on a steam turbine that drives a compressor. After the machine had not operated for a week, vibration level increased 5 times during ...
Steam Turbine 101/201 Combined, Basic Knowledge of Steam Turbine
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
It is shown as the outline in this short course that the role of steam turbine, history, classification, basic structure, components and their function, manufacturing and design process and control system. And also, the ...
Preventing a Major Wreck on a New Reciprocating Compressor: The importance of commissioning testing
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
During commissioning testing of three new reciprocating compressors a fault was detected requiring the testing to be stopped. Debris was found in the bearing resulting in minor damage due to the early indication from the ...
A Robust Algorithm to Detect Multiple Centrifugal Pump Faults with Corrupted Vibration and Current Signatures Using Continuous Wavelet Transform
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Centrifugal pumps are susceptible to seizures owing to reasons such as, fluid flow abnormalities and/or mechanical component failures. Consequently, it is crucial to recognize these faults and estimate their severity. The ...
High Reliability Pistons for Reciprocating Compressors with Validated Performance Modelling
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Piston ring leakage on reciprocating compressors is predictable due to defined leakage paths at the end gaps of piston rings. A new engineering approach quantifies the slippage and determines the dynamic pressure difference ...
Centrifugal Compressors 101
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This course is aimed at engineers and technical professionals who need a broad-based introduction to centrifugal compressor design and analysis. This course starts with the basics and builds to provide a full understanding ...
API High Speed Balancing Acceptance Criteria and Pedestal Dynamics
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Acceptance criteria for high-speed balancing of turbomachinery are specified in API standards based on either pedestal velocity or shaft displacement. In addition to performing balancing, the measured displacements can ...