Now showing items 132-151 of 180

    • Recip Pump on Unstable Condensate 

      Jakubiak, Jason; Mascherpa, Luigi (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Pump Design Conditions, Sealing/Packing System Design Features, Sealing/Packing System Failures, Pump Improvements, Conclusions and Lessons Learned
    • Regional Machinery Best Practices 

      Forsthoffer, William Eugene; Forsthoffer, Michael Sean (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 4
    • Remaining Life Assessment of Steam Turbine and Hot Gas Expander Components 

      Dowson, David; Bauer, Derrick (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 16: In today's market place, a large percentage of oil refinery, petrochemical, and power generation plants throughout the world have been trying to reduce their operation cost by extending the service life of ...
    • Repair of Severely Damaged Rotor as an Emergency Spare 

      Laney, Scot; Richards, Doug; White, Nicholas (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 10: When the subject compressor was opened for an unrelated reason, it was unexpectedly found to have severe cracking, including a missing piece, on the first stage impeller and foreign object damage to the ...
    • Resolving High Vibration On a Vertical Pump 

      Shalabi, Mustafa; Ganesh, Sankar; Al-Mubarak, Sami; Ahmad, F Bn Nawawi (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      There is a single stage vertical pump installed in Acetic Acid area in a petrochemical plant. The unit is vertical high pressure (HP) reactor feed pump (High speed single stage, 230 kW, 12338 rpm & 3.444 gear ratio) driven ...
    • Resolving Structural Vibration Issues On a Multi Stage Pump 

      Peton, Nicolas; Ganesh, Sankar (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      There are three multistage pumps supplied as part of a new project for transporting diesel from one location to another. Earlier, the transportation of diesel was carried out using trucks for this facility. The availability ...
    • Revamp of Steam Turbine for Synthesis Gas Compressor at NFL Nangal 

      Markan, Rakesh (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 11: National Fertilizers Limited, Nangal Unit, India had under taken the revamp of Steam Turbine of Synthesis Gas Compressor in January 2014. The plant startup, after machine revamp, was delayed by 40 days, ...
    • Revolving Vane Mechanism: A Novel Pumping Mechanism 

      Tiow, OOI Kim (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 25
    • Rotor Magnetization in Turboexpander and its Effect on Vibration Readings 

      Kumar, Ajay (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. ...
    • Rotor-Bearing Dynamics of Integrally Geared Turbomachinery 

      Wygant, Karl; Robertson, Chad; Li, Fang (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      This tutorial focuses on the rotordynamic characteristics of integrally geared compressors and expanders. Although the focus is for turbomachinery the topics discussed also apply to industrial gearing. The topics covered ...
    • Rotordynamics Analyses of a Modified Hydraulic Power Recovery Turbine 

      Kai Chiat, Cheong; Lek, Edmund; Tzuu Bin, Ng (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Problem Statement, Machine Information, Torsional Model & Assumption, Torsional Response & Results, Tuning Methods, Field Validation, Conclusion
    • Rotordynamics, Design Aspects, Field and Operational Experiences of a Novel, Large Compressor String Supported by Active Magnetic Bearings 

      Gausmann, Rainer; Heidtmann, Frank (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      The giant Groningen onshore gas field in the Northeastern Netherlands started production in 1963. About 35 years later, the decreasing reservoir pressure required a first stage of compression to provide sufficient capacity ...
    • Save your Centrifugal Machinery during Commissioning 

      Kumar, Arun; Sabharwal, Mohit (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      During the commissioning of centrifugal machines (Compressors, steam turbines, pumps, fans etc.), a lack of flushing, inspection and ignorance of critical areas & procedures can lead to major problems, damage, and serious ...
    • Shop Rotordynamic Testing - Options, Objectives, Benefits & Practices 

      Cloud, C. Hunter; Kocur, John (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 18: Understanding the lateral rotordynamic behavior is critical in determining the reliability/operability of rotating equipment. Whether examining a centrifugal pump or compressor, steam or gas turbine, motor or ...
    • Simplified Modal Analysis for the Plant Machinery Engineer 

      Vázquez, José A.; Cloud, C. Hunter; Eizember, Robert J. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 6: Experimental modal analysis and operating deflection shapes (ODS) are powerful tools in vibration analysis and machinery troubleshooting. However, the machinery plant engineer often doesn’t believe such techniques ...
    • Solutions To Requirements On Electrical Drives In O&G Applications 

      Ganesan, Vijay; Busse, Stephan; Demmig, Sven (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 3: Variable-frequency drives (VFDs) are being increasingly employed in oil and gas (O&G) applications due to their better efficiency, reliability and process control when compared to conventional drives. In comparison ...
    • Squeeze Film Dampers: An Experimental Appraisal of Their Dynamic Performance 

      San Andrés, Luis; Jeung, Sung-hwa; Den, Sean; Savela, Gregory (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 15: Squeeze Film Dampers (SFDs) are effective means to ameliorate rotor vibration amplitudes and to suppress instabilities in rotor-bearing systems. A SFD is not an off-the-shelf mechanical element but tailored to ...
    • Stability Considerations - A Simplified Approach 

      Baumann, Urs (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 2: In many cases it is necessary to judge the stability behavior of a specific compressor. This might be the OEM checking the feasibility of a proposed compressor layout or it might be the user judging one of his ...
    • Static and Rotordynamic Analysis of a Plain Annular (Liquid) Seal in the Laminar Regime with a Swirl Brake for Three Clearances 

      Ahmed Bin Najeeb, Ovais; Childs, Dara (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Annular seals are non-contacting mechanical elements designed to reduce leakage between two areas of differing pressures such as between two impeller stages in a pump. Circumferential fluid rotation inside the annular ...
    • Steam Turbine Steam Control Valve Failure 

      Bhat, Vasanth; Suthan, Thangavel (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      The Wet Gas compressor is one of the most critical assets in a FCCU/RCCU of a oil refinery. The back pressure steam turbine driver of this compressor faced two failures in the main valve stem of the steam inlet valve. ...