Search
Now showing items 51-60 of 63
Commissioning And Startups Of New Units (Pumps)
(Texas A&M University. Turbomachinery Laboratories, 2009)
Installation and startup of centrifugal pumps and drives can be a stressful time. It involves a coordinated working relationship with several crafts - foundation, contractors, pipefitters, welders, millwrights, startup ...
Power Pump Valve Dynamics
(Texas A&M University. Turbomachinery Laboratories, 2009)
The dynamics (movement) of the check valves in a reciprocating power pump determine whether the pump will operate quietly and smoothly, or noisily with pulsation and vibration. Although piping pulsation and vibration are, ...
Dynamic Improvement Of An Overhung Single-Stage Pump
(Texas A&M University. Turbomachinery Laboratories, 2009)
Vibration control is an important aspect of all pump design. It helps assure quiet operation and high reliability. Therefore, the design of pump components should avoid any dangerous resonances with excitation forces, such ...
Contemporary Guide To Mechanical Seal Leakage
(Texas A&M University. Turbomachinery Laboratories, 2009)
The mechanical seal is a critical component in many mature industrial processes such as flue gas desulphurization, crude oil transport and refining, electricity production, and pharmaceutical manufacturing. A “critical ...
Acoustics In Pumping Systems
(Texas A&M University. Turbomachinery Laboratories, 2009)
This tutorial will explain the pumping system speed of sounds concept (how to account for acoustic velocity changes due to pipe wall flexibility and liquid properties), the definition of quarter-wave, half-wave, and higher ...
Seal Oil Piping Vibration On An Oil-Free Screw Compressor In An FPSO Application.
(Texas A&M University. Turbomachinery Laboratories, 2009)
A dry screw compressor skid was fabricated for offshore service that included oil buffered mechanical seals on the compressor. During shop testing, excessive seal oil piping vibration was observed that resulted in pipe ...
Successful Avoidance Of Major Secondary Damages Using Proximity Measurements To Detect A Partially Fractured Piston Rod.
(Texas A&M University. Turbomachinery Laboratories, 2009)
75mw Turbine-Generator Journal/Thrust Bearing Upgrade.
(Texas A&M University. Turbomachinery Laboratories, 2009)
This case history discusses the upgrade of the #1 combination journal-thrust bearing assembly in the front standard of a 75 MW turbine/generator set. The existing taper land thrust plates experienced frequent failures and ...
Centrifugal Compressor Degradation Detection Through Remote Vibration Monitoring.
(Texas A&M University. Turbomachinery Laboratories, 2009)
An example of availability gain using vibration remote monitoring systems for early diagnostic.
Aeroacoustic Phenomena In High Pressure Centrifugal Compressors - A Possible Root Cause For Impeller Failures.
(Texas A&M University. Turbomachinery Laboratories, 2009)
During the past decades studies of aeroacoustic phenomena in turbomachinery were mainly carried out by research institution. The aerospace industry was the main driver in this field since noise issues gained more and more ...