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Now showing items 101-110 of 262
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 ...
"Do As I Say" (The Effects Of The Process On Turbomachinery Reliability).
(Texas A&M University. Turbomachinery Laboratories, 2001)
This tutorial examines the primary cause of lower than expected reliability in turbomachines, the effect of the process on machinery component life. Over 95 percent of the rotating equipment installed in any refinery, ...
The New Fifth Edition Of API 618 For Reciprocating Compressors - Which Pulsation And Vibration Control Philosophy Should You Use?
(Texas A&M University. Turbomachinery Laboratories, 2001)
The proposed Fifth Edition of API 618 (“Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services”) incorporates significant changes in the section concerning pulsation and vibration control. There are ...
Gas Turbine Performance Deterioration.
(Texas A&M University. Turbomachinery Laboratories, 2001)
With privatization and intense competition in the utility and petrochemical industry, there is a strong incentive for gas turbine operators to minimize and control performance deterioration, as this directly affect ...