Texas A&M Engineering Experiment Station: Recent submissions
Now showing items 81-100 of 8496
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)Acceptance criteria for high-speed balancing of turbomachinery are specified in API standards based on either pedestal velocity or shaft displacement, and these are discussed in detail Pedestal velocities are measured using ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)A re-examination of the well-known Ekofisk re-injection centrifugal compressor is presented Several opportunities makethis an ideal candidate to assess how well (or not) current design and analytical methods have evolved ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)The paper examines the case of a rotordynamic analysis and subsequent rotodynamic testing conducted during the pre-order phase for a five-stage integrally-geared centrifugal compressor, which today is operating in a refinery ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)During the independent Asset Integrity Review (i-AIR) audit conducted on one of theoffshore production facility, use of instrument air as separation medium for separation sealof the process gas booster compressors Dry Gas ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)3MW back pressure steam turbines has experienced a common and repetitivemechanical failure for its dual port steam governor valve Fracture surfaceanalysis at the failed valve stem reveals a distinctive sign of fatigue ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)Accelerometers were used to measure vibration of the input shaftusing an on-line remote monitoring system Though the vibrationamplitudes were below the acceptable limit for over a year period,two bearing damages were thought ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)The purpose of this case study is to describe a problem with random, intermittent rotor vibration excursions in a large steam turbine These types of problems can be very difficult to diagnose, especially when the vibration ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)ThiscasestudypresentsanincidentofsuddentemperatureincreaseofabearinginaspecialpurposegearboxduringnormaloperationDetailsofthedirectcauseinvestigation,onlinemitigationandlongertermimprovementswillbesharedThecompressortrai ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)This case study is describing the observations and the troubles shooting relative to a mechanical runningtest carried out on a generator mounted Epicyclic gearbox The specific gear architecture is requiring a fullintegration ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)The machine train consists of a steam turbine of three casings (HP/IP, LP1 and LP2) coupled to a Generator with a base loadcapacity of 660MW running at 3600RPM Post a machine boiler event trip on October 22nd 2018, step ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)A hydrogen compressor experienced intermittent vibration spikes during operation Review of the vibration plots revealed that the spikes appear at 11x running speed of the compressor The no of vanes of the impeller is 11 ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)This case study presents a high vibration trip incident experienced on a SP steam turbine which was overhauled, during re-start The machine tripped 3 times on high vibration just before 1st critical The problem was identified ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)Electrostatic discharge (ESD) can cause catastrophic mechanical damage and lower the life span of an asset if not detected early and rectified. Continuous discharge of static electricity can cause micro pitting of bearing ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)The Operating Deflection Shape (ODS) technique that was derived from Experimental Modal Analysis has served well to assist users in quantifying vibration amplitudes, determining vibration mode shapes, looseness between ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)This case study outlines how structural vibration was resolved using two different technologies and highlighting secondary issues that can arise due to continued vibration because of structural resonance. Continued high ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)Turbomachinery is the heart of any platform, which generates power and compresses gas. However, the current practices of turbomachinery are entangled with various challenges and obstacles, which eventually affect the overall ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)The objectives of this tutorial are to familiarize rotating machinery engineers involved in detailed engineering and site operation on various aspects of axial vibration in rotating machinery. Among all rotating machines ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)Decarbonization of electric power infrastructure requires the development of cost-effective, sustainable, and reliable energy storage technologies that are capable of many Megawatts or Gigawatts of output and long storage ...
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(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)Turbomachinery seals are engineered to maintain efficiency and power delivery by minimizing leakage. Seals also appreciably affect the system rotordynamic behavior due to their relative position within a turbomachine. The ...