Now showing items 3400-3419 of 17199

    • Sing, Ng Wei (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 ...
    • Shalabi, Mustafa; Ganesh, Sankar (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 ...
    • Sing, Ng Wei (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2021)
      ThiscasestudypresentsanincidentofsuddentemperatureincreaseofabearinginaspecialpurposegearboxduringnormaloperationDetailsofthedirectcauseinvestigation,onlinemitigationandlongertermimprovementswillbesharedThecompressortrai ...
    • Glover, Nicholas; Billery, Florian; Maragioglio, Gaspare; Feral, Remi (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 ...
    • Yu, John; Wang, Carl Feng; Yuan, Mingfeng; Péton, Nicolas; Guan, Xiaodong; Ye, Mingxing (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 ...
    • Yusoff, Dasuki; Nik Mohd, Nik Ahmad (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 ...
    • Smith, Patrick; Sheekar, (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 ...
    • Sutherland, Vanessa Allen (Mary Kay O'Connor Process Safety Center; Texas &M University. Libraries, 2016)
      On April 17, 2013, a fire and explosion occurred at the West Fertilizer Company (WFC), a fertilizer blending, retail, and distribution facility in West, Texas. The violent detonation fatally injured 12 emergency responders ...
    • Smith, Patrick; Altimany, Gus (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Resonance in rotating machinery occurs when a natural frequency is coincident with the operating speed. The issue can be with the rotor bearing system or the pump supporting structure natural frequencies, but the resulting ...
    • Eberle, Kelly; Michal, Gaca (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      When a plunger pump shuts down unexpectedly, there can be many potential causes. This case study demonstrates how a multi-channel data logging system was used to diagnose a mysterious shutdown of a plunger pump driven by ...
    • Weatheritt, Claire; Stoner, Kyle (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      This case study shows how Motion Amplification video has been used to contribute to identifying the root cause of a seal issue. Motion amplification is a video-processing product and software that detects subtle motion and ...
    • Heo, Junseok; Ryoo, Seungsoo; Jang, Jongoh; Bae, Seungil; Jeong, Hyoseok (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      As reliability of electric power system has been significantly improved in recent decades, electric motors are widely used in petroleum and chemical industries because they are rugged and reliable in severe condition. Motor ...
    • McConnell, Collin (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      During an investigation of bore damage on a flexible coupling between a motor and pump, the hubs non uniform design came into question as a potential factor. The American National Standard Flexible couplings Keyless Fits ...
    • Pellin, Johnny (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      A pair of large barrel pumps have experienced poor reliability and poor hydraulic performance since their installation in 1993. Despite repeated overhauls and design changes, the problem persisted. A detailed analysis found ...
    • Patterson, Donnie (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Review of start-up cavitation issue for pumps in series. Presents initial findings, performance curve review and solution that solved the issue.
    • Lee, Sanghun; Yang, Jinseok; Cho, Daekyung (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Piston Rods are one of the most vulnerable components in reciprocating compressors and, if failing, one of the most important parts that can cause serious secondary damage. Based on an actual experience with a piston rod ...
    • Mostafa, Mohamed Hazem Ahmed Sadek (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      This case shall discuss incidents of a deficient inspection affected an API610 vertical sump pumps, supplied to operate in a Sulfur Removal Unit (SRU) for a major gas project. One challenge in such failures is the iterative ...
    • Ropp, Christopher "Topher" (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      The customer experienced short seal life on a set of multi-stage, double ended pumps that were commissioned in 2009. A single seal design with piping plan 23 system was used with pump cooling jackets. The average seal life ...
    • Cich, Stefan; Moore, Jeff; Day-Towler, Meera (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      During the testing of a 1 MWe power loop with super critical co2, it was discovered that dry ice formation across dry gas seals would be an issue. This case study looks at the negative effects of dry ice formation and how ...
    • Obst, Larry; Savini, Giancarlo; Dechman, Jim; Parlos, Alex (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      TBD