Search
Now showing items 1-10 of 108
Vibration Analysis of Gas Turbine’s Transportation Carrigage and Warranty Issues
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This paper describes the investigation of whether the vibration shock limits were exceeded on the transportation of 2 gas turbines. This investigation was requested due to an improper suspension type of the carriage used ...
Applying Upstream Pumping Sealing Technology for high corrosive fluid – Improve Reliability & Operating Cost
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This is a mechanical seal upgrade case study about applying advanced upstream pumping technology instead ofconventional tandem seal arrangements with external flushing in high corrosive fluid pump seal applications in order ...
Rotor Magnetization in Turboexpander and its Effect on Vibration Readings
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A magnetized rotating machine behaves like an electrical generator. It often produces localized stray current that usually discharges across small clearance paths imposing damage to machine internals and vibration probes. ...
Investigation and Resolution of Governing Valve Linkage Failure for Compressor Drive Steam Turbine
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Fatigue failure of Governing Valve Linkage Rod end bearing and wear marks on several parts was observed on a extraction steam turbine (driving a centrifugal compressor) after it was in service for more than 9 year. The top ...
Glycol-Based Lube Oil Behavior & Its Effects In Fuel Gas Compression System
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Oil-flooded screw compressors (2 units x 100% duty) deliver fuel gas from AGRU Absorber at saturated condition to GTG to sustain oil production facilities @ ~33 MW power demand. Each Fuel Gas Compressor (FGC) is rated for ...
Investigation of High Bearing Temperature in Centrifugal Compressor
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Suction side Journal bearing temperature increased to around 130 degC from 60 degC instantaneously. Further the temperature was decreased to 80 degC accompanied by increase in rotor vibration.(from 5 to 15 ?m p-p) •Bearing ...
Investigation of unexpected Trips in Steam Turbine
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A 56 MW steam turbine tripped several times over a short period of time
although the trip signal was not sent. A thorough examination of the turbine at site ruled out any problems with the trip system. The pressure data ...
Molten Urea Transfer Pump Seal Failures
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Urea melt pumps had been a reliability concern since commissioning (1992).
Majority of the concerns were related to the failure of mechanical seal.
Unexpected failures of seal were encountered during plant startups or ...
Benefits of Installing Restrictive Orifice Plates on the Suction of Reciprocating Pumps: 1D Pulsation and CFD Studies
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
It is well understood that static pressure at the inlet of reciprocating pumps, quantified typically by Net Positive Suction
Head Available (NPSHA), must be sufficient to avoid cavitation in the pump suction manifold and ...
Steam Whip Phenomenon in Steam turbine
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This case study is designed to outline how the high vibration issue was successfully diagnosed, the root cause for the high vibration found and correction actions recommended. The source of mentioned high vibration - sub ...