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Now showing items 4081-4090 of 4423
Accidental Excitation of Acoustic Resonances from Balance Holes on Rotating Disk
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
During commissioning of an open-casing test rig, a loud (above 105 dB) high pitch “squealing” sound occurred at speeds above 3,000 rpm. All elements of the rig were removed except the bearings yet the noise persisted. ...
Significant MTBF improvement of a water injection pump application by using diamond coated seal face material technology
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
A well-known oil company in Oman is producing crude oil using “produced water injection” as their favorite Enhanced Oil Recovery (EOR) techniques. This nasty water is reinjected into the well by high-pressure multistage ...
PRECISION GROUTING OF TURBOMACHINERY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Rotating equipment being installed in industrial environments, including refineries and chemical processing plants, are critically aligned with exact tolerances. When in operation, this equipment experiences heavy dynamic ...
PRECISION GROUTING OF TURBOMACHINERY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Rotating equipment being installed in industrial environments, including refineries and chemical processing plants, are critically aligned with exact tolerances. When in operation, this equipment experiences heavy dynamic ...
Effect of swirl canceller on impeller exitation
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
This case study is concerned with effect of the swirl canceller for impeller excitation force of integrally geared compressor. The 5th stage shaft vibration of booster air compressor showed abnormal behavior as the discharge ...
Cavitation Prediction and Avoidance in Design using Semi
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Cavitation is a phenomenon that is of great concern to both the design and operation of pumps. The presence of cavitation – that is, the formation of vapor bubbles in the flowing fluid that subsequently collapses – can ...
RULE BASED SEAL SELECTION FOR PIPELINE SERVICES
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
Mechanical seal selection for pipeline applications can be a challenging task considering the application pressure ranges, speeds, and the properties of the fluids being moved. Variable fluid properties present their own ...
A PRACTICAL GUIDE TO UNDERSTANDING LATERAL ROTORDYNAMIC ANALYSIS TO HELP IDENTIFY AND SOLVE VIBRATION PROBLEMS IN TURBOMACHINERY
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The primary purpose of performing a lateral rotordynamic analysis for centrifugal compressors, steam turbines and other rotating machines is to ensure that there are no undesirable rotor/bearing performance issues that ...
TURBOMACHINERY FOR REFINERY APPLICATIONS
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
This tutorial covers the basics, applications, and operation of compressors, expanders, steam turbines, and gas turbines in refinery applications. Modern refineries utilize a wide range of turbomachinery that must flexibly ...
RECENT TEST EXPERIENCES WITH APPLYING MULTIPLE UNSHROUDED IMPELLERS IN A SINGLE-SHAFT COMPRESSOR
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
The use of unshrouded impellers to increase the pressure ratio and volume reduction achieved in low mole weight, single-shaft compressor applications is discussed. The aerodynamic and mechanical implications of using ...