Search
Now showing items 2211-2220 of 2747
Design and Implementation of Swirl Brakes for Enhanced Rotordynamic Stability in an Off-shore Centrifugal Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Rotordynamic stability of gas compressors at high speeds and operating pressures is a significant technical challenge.
Dynamic instability must be avoided for the sake of safe, reliable and continuous operation of ...
Atypical Results from Improperly Sized & Charged Pulsation Dampeners
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
At a facility with four quintuplex pumps, pulsation dampeners were being used to control pulsations in the discharge line. However, the initial dampeners were both undersized and undercharged for the application. As a ...
A Study on the Operation of Pitot Tube Pumps
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
While pitot tube pumps have been commercially available since 1970 little is known and less is published about their internal
operation and design principles especially when operating off design. This paper is a culmination ...
TANDEM DRY GAS SEALS – Design and Maintenance Considerations for Enhanced Reliability and Performance
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Dry Gas Seals have been in existence in the process centrifugal compressor industry for the last three decades and majority of the compressor units in operation today are installed with Dry Gas Seals. DGS sealing and the ...
Subsynchronous Shaft Vibration in an Integrally Geared Expander-Compressor due to Vortex Flow in an Expander
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Subsynchronous shaft vibration was observed in an integrally
geared expander-compressor when the machine was operated
with a partial load in the course of plant start up. The root
cause of the synchronous shaft vibration ...
Operator / OEM Collaboration on Trip & Alarm Rationalization
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Turbomachinery has increased in complexity and monitoring capabilities
over the last several decades. This has resulted in an increased number of
trips to protect various machinery systems. The prevailing OEM philosophy
has ...
Pump Cavitation – Physics, Prediction, Control, Troubleshooting
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This short course gives insight into roto-dynamic pump cavitation and provides
deeper understanding of particulars like cavitation inception, three-percent head
drop, 40,000 hours life criterion, cavitation damage potential, ...
Centrifugal Compressors 101: Part 1
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Reciprocating and centrifugal compressor similarities/ differences
-How do they work? (Potential Energy, Kinetic Energy, PE, KE, …)
-History of compressors
– Timeline, major advances
– Configurations, straight-through, ...
Gas Turbine Performance and Maintenance
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
In this tutorial, we will address the basic characteristics of
each of the components in a gas turbine (compressor,
combustor, gas generator turbine, power turbine) and the
impact of typical control limits and control ...
HF Acid Alkylation Processes: Pump and Mechanical Seal Application and Design Considerations for Increased Reliability
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Hydrofluoric (HF) acid is an extremely corrosive solution commonly found in many oil refineries where it is used as a catalyst in the production of high octane gasoline blending stock. HF acid is almost synonymous with the ...