Now showing items 2-21 of 180

    • A Fresh Look at Containment Seals and Equipment 

      Carmody, Christopher; Smith, Richard (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      The need for reliable and safe sealing of rotating equipment remains as a primary concern for industry. In situations where single mechanical seals were used the introduction of environmental and safety legislation brought ...
    • A New Methodology for Verifying Pressurized Start-Up of Centrifugal Compressors Driven by Direct-On-Line Electric Motor by Leveraging String Test Results and Dynamic Simulation Analysis 

      Calosi, Mirco; Magnante, Luca; Ranieri, Riccardo; Kobbin, Ibrahim; Pelella, Marco; Lorenzini, Riccardo (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Fixed Speed Electric Motors driving Centrifugal Compressors are designed considering the pressurized start-up as the most critical condition in terms of the torque requirement. Their capability is checked during the design ...
    • A Solution to Years of High Vibration Problems in Three Reinjection Compressor Trains Running at 33 MPA Discharge Pressure 

      Blair, Barry J.; Kim, Jong; dos Santos, Marcio Felipe (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 22: Over a 13‐year span, a major South American oil company’s maintenance department fought high vibrations in three gas reinjection compressor trains. To reduce the chances of machine trips, technicians field ...
    • A Study on the Operation of Pitot Tube Pumps 

      Neilson, Bryce (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      While pitot tube pumps have been commercially available since 1970 little is known and less is published about their internal operation and design principles especially when operating off design. This paper is a culmination ...
    • Abrupt Stoppage of Turbine Rotor, Running on Barring after Major Overhauling 

      Reddy, Ranga; Reddy, Ravi S. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 15: This case study is about a typical experience where a steam turbine, which was running at 100 RPM on barring (turning) after overhaul, stopped abruptly and the rotor was found to be seized. The case study ...
    • Accurate Estimation of Start-Up Pulsating Torque of Direct On Line Synchronous Motors Driving Compressor Trains 

      Meucci, Francesco; Spolveri, Niccolo; Donati, David; Del Puglia, Stefano (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      In a compressor train driven by fixed speed synchronous motor (>17MW) was discovered a potential torsional problem on the input shaft of the hydraulic variable speed gear during the start-up phase when only low speed shaft ...
    • Adapting Compression Equipment to Accommodate Declining Well Pressures and Ensure Overall Efficiency in Mid/Late Field Life 

      Gunn, Ben; Kurz, Rainer; Bender, Jonathan; Hayes, Joel; Hai, Yakin R.; Utami, Aning Restu (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 9: Compression systems are designed for the governing process conditions. In the Oil and Gas industry, these conditions are often dynamic and a function of reservoir or field characteristics which have varying ...
    • Advancements in Mechanical Sealing - API 682 Fourth Edition 

      Huebner, Michael; Buck, Gordon; Azibert, Henri (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      API 682 is the leading document for mechanical seals in petrochemical, chemical, and pipeline services worldwide. It has combined the aspects of seal design, testing, standardization, and applications to provide the users ...
    • An End-User's Guide to Centrifugal Pump Rotordynamics 

      Marscher, Bill (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 3: This tutorial outlines the basics of pump rotordynamics in a form that is intended to be Machinery End User friendly. Key concepts will be defined in understandable terms, and analysis and testing options will ...
    • Application and Design of Integrally Geared Compressors 

      Wygant, Karl; Bygrave, Jonathan; Bosen, Werner; Pelton, Rob (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 7: Integrally geared compressors (IGC’s) are common in plant/instrument air service as well as air separation applications, and continue to gain acceptance over a wide range of other applications. An IGC can achieve ...
    • Application of Dynamic pressure-balanced Seals in a Multi-stage Centrifugal Compressor 

      Stiles, David; Justak, John; Kuzdzal, Mark; Miller, Harry; Sandberg, Mark; Rohrs, Charles (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Test results for an ASME Power Test Code 10 (PTC) Type 1 test of a 4,500 psia (310 Bara) discharge pressure gas lift centrifugal compressor outfitted with dynamic pressure-balanced seals at the impeller eyes; shaft interstage ...
    • Applying Upstream Pumping Sealing Technology for high corrosive fluid – Improve Reliability & Operating Cost 

      Yanhui, XU; FitzGibbon, Gibbon (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 ...
    • Atypical Results from Improperly Sized & Charged Pulsation Dampeners 

      Poerner, Nathan; Broerman, Eugene; Souther, Tappan; Cook, Trenton (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      At a facility with four quintuplex pumps, pulsation dampeners were being used to control pulsations in the discharge line. However, the initial dampeners were both undersized and undercharged for the application. As a ...
    • Bad Actor Elimination in Pumps 

      Bhat, Vasanth; Suthan, Thangavel (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 12
    • Base Plate Corrosion and Premature Bearing failure in RO Pump 

      Subramanian, Moorthy (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      On 19th Aug 2017, abnormal noise noticed from RO (Reverse osmosis) Membrane Feed pump coupling area. Checked the vibration for pump & motor and found very high vibration at Pump Drive end. The vibration level at Pump DE ...
    • Benefits of Installing Restrictive Orifice Plates on the Suction of Reciprocating Pumps: 1D Pulsation and CFD Studies 

      Crowther, Paul; Chen, Zixiang; Ijeomah, Cajetan; Grose, Jordan (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 ...
    • Blade Failures on an Axial Compressor by Unexpected Gas Compositions 

      Schwarz, Marco (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      A fifteen stage axial compressor including a bleed extraction was subject to a major overhaul after nearly 20 years of trouble free operation. Shortly after recommissioning and resumption of the production the compressor ...
    • Carbon Foot Print Reduction Techniques with Rotating Machinery 

      Bhat, Vasanth M.; Aaron, Quek Ser King (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 8: Global Environment concerns and need for more optimized production costs is driving all industries including Oil & Gas to look at more ways to reduce energy consumption without compromising on plant throughputs. ...
    • Case Study on Remote Diagnostics in Resolving Random Vibration on a Steam Turbine 

      Ganesh, R. Sankar; Iqbal, Muhammad Zeeshan (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 7: This case study narrates an incident of random vibration spikes which occurred in year 2014 on one of the steam turbine bearings of a propane refrigeration compressor train. The random vibration spikes caused ...
    • Case Study on Resolving High Vibration Issue of a Centrifugal Compressor at an Offshore Platform 

      Sharma, Amit; Ganesh, Sankar (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Gas Injection Compressors are critical for offshore oil production facilities. A compressor downtime lowers oil production. This case study is about a Gas Injection Compression train at an offshore platform in the Middle ...