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Now showing items 121-130 of 141
Improving Reliability and Reducing Steam Leakage in General Purpose Steam Turbines with Floating Brush Seals
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
This case study examines four different applications where brush seals were introduced into the gland boxes of process steam turbines where conventional carbon rings and mechanical seals were previously applied. The resulting ...
Integral Gear Compressor Gearbox Flooding Issue
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
This case study discusses a series of integral gear compressor trips and machine damage that resulted from a sudden increase in motor power not related to process changes.After testing it was determined that the increase ...
Analysis and on-stream countermeasures of sub-synchronous vibration of a centrifugal compressor
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
The sub-synchronous vibration could be attributed to many causes such as gas-whirl, oil whirl, looseness and so on. To prevent sub-synchronous vibration, manufacturer analyzes stability during design stage. But field ...
A High Bearing Temperature Troubleshooting of Centrifugal Heat-Pump Compressor
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
On September 2013, a centrifugal heat-pump compressor began showing an abnormal temperature rise in its tilting pad journal bearing (DE-side). The phenomenon appeared when increasing the rotor speed following a process of ...
Sub-Synchronous Vibration on Centrifugal Compressor with Tilt-Pad Bearings
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
This presentation provides a success story that sub- synchronous vibration was eliminated on a centrifugal compressor. The sub-synchronous vibration originally occurred at high operational speed on this 5-stage hydrogen ...
Vibration Analysis for Turbomachinery
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Turbomachinery requires a higher level of vibration analysis than general purpose machinery. This includes identifying natural frequencies or modes of a system to determine if a potential resonance occurs. The complexity ...
Continuous Control of Lube Oil Water Contamination - Never get Surprised Again
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Problem: High water contamination of lube oil damaged a turbine driven process blower on multiple occasions. Traditional solution:• Monitor oil for milky appearance – only qualitative • Drain free water from reservoir, but ...
Resolving Cyclic Vibration on an Instrument Air Compressor
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Instrument Air Compressors are considered critical equipment in the plants, supplying compressed air to the instrumentations in the field. This case study focuses on cyclic vibration phenomena observed in the 2nd and 3rd ...
Adapting Hermetically Sealed Compressor Technology To Deal With Sour And Corrosive Gases
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
The Oil & Gas industry faces increasing challenges to meet growing energy demands with the most sustainable exploration and production techniques. Compressor manufacturers have responded to these challenges with the ...
Performance Test Of A Liquid Tolerant Impeller And Validation Of Wet Compression Predictive Model
(Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
Standard centrifugal compressors are designed to process gas with limited liquid content: significant presence of liquid may be responsible for the rapid erosion and corrosion of both static and rotating components that ...