Search
Now showing items 21-30 of 84
High Vibrations & Component Failure in Turbomachinery due to Magnetic Currents : Its Detection, Diagnosis & Correction
(Texas A&M University. Turbomachinery Laboratories, 2007)
Objective: To share with users of Turbomachinery the fact that High Speed Turbomachinery with components possessing Residual Magnetism can produce high shaft voltages & high current, which can lead to severe problem like ...
Forensic Engineering Analysis of a Combustion Turbine Compressor Blade Failure
(Texas A&M University. Turbomachinery Laboratories, 2007)
Short Courses / Turbomachinery Symposium (36th : 2007)
(Texas A&M University. Turbomachinery Laboratories, 2007)
Electric Systems For High Power Compressor Trains In Oil And Gas Applications - System Design, Validation Approach, And Performances.
(Texas A&M University. Turbomachinery Laboratories, 2007)
This paper presents the development process for a new variable frequency drive (VFD) system for large size compressor trains for natural gas and liquefied natural gas (LNG) applications. The paper covers the multiple steps ...
Analysis Of Vibratory Stress Of Integral Shroud Blade For Mechanical Drive Steam Turbine.
(Texas A&M University. Turbomachinery Laboratories, 2007)
The advanced integral shroud blade (ISB) structure has been developed to improve the reliability and thermal efficiency of mechanical drive steam turbines. This advanced ISB has been applied to not only the control stage ...
Root Cause Analysis of a Subsynchronous Vibration on a Variable Speed Gear
(Texas A&M University. Turbomachinery Laboratories, 2007)
Redesign Of A High Speed Compressor Drive Steam Turbine To Overcome Capacity, Efficiency, And Reliability Issues.
(Texas A&M University. Turbomachinery Laboratories, 2007)
A case study of the redesign of a syngas compressor drive turbine is presented. The unit was installed as part of a relocated ammonia plant, and experienced reliability and performance problems from the start. A completely ...
Improving The Reliability Of A High Speed Refrigeration Compressor.
(Texas A&M University. Turbomachinery Laboratories, 2007)
A high speed (15,200 rpm) refrigeration centrifugal recycle compressor was experiencing severe reliability problems resulting in short run times between major overhauls. Typical run times were one to 12 weeks. The symptoms ...
A Sub-Synchronous Vibration Problem: Trapped Fluid in Compressor Coupling Spacer / Diagnosis and Resolution
(Texas A&M University. Turbomachinery Laboratories, 2007)
The Torsional Torque Fluctuations of a Compressor Train with a Vector Control PWM Inverter
(Texas A&M University. Turbomachinery Laboratories, 2007)
A stable speed & torque control system is essential for large adjustable speed motor driven compressor trains. In order to achieve stable control, advanced control techniques are required. This case study shows the problems ...