Browsing Middle East Turbomachinery Symposium (METS) by Title

Now showing items 136-155 of 156

    • STABILITY CONSIDERATIONS – A SIMPLIFIED APPROACH 
      Baumann, Urs (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      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 machines ...
    • STABILITY CONSIDERATIONS: A SIMPLIFIED APPROACH 
      Baumann, Urs (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      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 machines ...
    • STALL INDUCED AERODYNAMIC FORCING AND ROTOR VIBRATIONS IN A MULTISTAGE CENTRIFUGAL COMPRESSOR 
      Biliotti, Davide; Belardini, Elisabetta; Giachi, Marco; Toni, Lorenzo; Vannini, Giuseppe; Rubino, Dante Tommaso (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      The Oil & Gas industry is looking with increased interest at solutions for improving operating flexibility of centrifugal compressors. The stable operation of a compressor stage or machine is generally limited at the ...
    • Steam Turbine Blade Failure 
      Zope, Rajendra; Choondassery, Umesh (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      The objective of this Case study is to share the Failure analysis of a steam turbine blades due to blade excitation aided by corrosion. The blade failure was detected early by Company Vibration analyst in July 2006, when ...
    • Submerged Pumps and Expanders with Magnetic Coupling for Hazardous Applications 
      Patel, Vinod; Rush, Steve (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      Presentation and discussion of a unique magnetic coupling design that has been developed for cryogenic service in liquefied gases that allows the submerged motor or generator to be isolated from the process fluid in a safe, ...
    • Think Out of the Box: Not All Sea Water Submerged Pump Failures Are Mechanical 
      Al-Baloshi, Hussain; Sudardjat, Isham (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      Outline -Introduction Offshore to QP Operation -Background -Failure History -Possible Failure Causes (Fish Bone Diagram) -Submersible Pump Caisson Designs -Suction Bearing Designs -Experiment Video & Findings ...
    • Torsional Rotordynamics of Machinery Equipment Strings 
      Corbo, Mark; Pettinato, Brian; Hollingsworth, Justin (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
    • Train Performance - Evaluation and Monitoring by Torque Meter Applications and Process Gas Compressor / Steam Turbine Train Fouling and Washing Mitigation 
      Kiuchi, Daisuke; Fujimura, Norihito; Hata, Satoshi; Horiba, Junichi (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
      The systematic monitoring and evaluation of turbomachinery is an important diagnostic tool in the execution of a long-term maintenance plan as well as the prevention of unexpected outages due to machinery breakdown. ...
    • Transient Unbalance of a Turbo-Compressor Rotor due to Thermal-Gradient Induced Bow from a Seal Gas Heater 
      Eldridge, Thom; Hampel, Markus (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
    • Trouble shooting the problems of Dry Gas Seals and Systems in Centrifugal Compressors 
      Majhi, Rajmal; Schiappacasse, Riccardo (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
    • Turbo-Expander Compressor Active Magnetic Bearing Trips Reduction - A Case Study 
      Ong, Chong; Cencula, Jim; Wu, Randy; Bielecki, Marcin; Lelanno, Matthias (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      To share lessons learned from the operations of Cryogenic Turbo-Expander Compressors (TEC). Scope of discussions will be limited to the 3 earlier units in Qatar Operator supplied by Turboexpander OEM with Active Magnetic ...
    • Turbomachinery Bearings and Annular Seals 
      Wisler, Scott; Baumann, Urs; Whalen, John; Kocur, John (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
    • Turbomachinery Operation and Maintenance 
      Forsthoffer, William; Forsthoffer, Michael; Al-Baloshi, Hussain; Holt, Christopher (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
    • TUTORIAL: GAS TURBINE PERFORMANCE 
      Kurz, Rainer; Brun, Klaus (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      The power and efficiency characteristics of a gas turbine are the result of a complex interaction of different turbo machines and a combustion system. In this tutorial, we will address the basic characteristics of each ...
    • TUTORIAL: SURGE CONTROL AND DYNAMIC BEHAVIOR FOR CENTRIFUGAL GAS COMPRESSORS 
      Kurz, Rainer; White, Robert; Brun, Klaus; Winklemann, Bernhard (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      This tutorial discusses the design and function of surge control systems, or more precisely, surge avoidance systems on the basis of the behavior of centrifugal compressors when they interact with compression systems. ...
    • TUTORIAL: TRANSIENT MODELING AND ANALYSIS OF CENTRIFUGAL COMPRESSORS 
      Garcia-Hernandez, Augusto; Bennett, Jeffrey (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      Centrifugal compressors are subject to transient events, such as emergency shutdowns, which can cause energetic surge events during rapid shutdown transients. Many modeling tools are used to predict the behavior of compressor ...
    • Unstable Reading of Accelerometers in Cryogenic Service 
      Marquez, Francisco; Mollath, Robert (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
      − RasGas operates over 100 pieces of cryogenic submersible equipment. Approximately 80 % are on pumping service and the rest on expansion service. − These units use two vibration transducers to provide protection and ...
    • Upgrading To Fully-Electric Actuation and Control of Steam Turbines 
      Al-Khateeb, Eyad; Al-Jaafari, Riyadh; Lovejoy, Kim; Al-Sultan, Tariq (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2013)
      The use of an electric actuator for steam turbine governor valve operation is a cutting-edge technology in steam turbine control. With this design, the use of turbine oil for turbine speed control purposes is eliminated. ...
    • VSD Motor Intermittent Vibrations Excursions 
      Van De Flier, Gertjan; Anwar Syed, Asad (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2015)
    • VSDS Motor Inverter Design Concept for Compressor Trains avoiding Interharmonics in Operating Speed Range 
      Hutten, Volker; Krause, Tim; Beer, Christian; Demmig, Sven (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2011)
      During operation of compressor trains by a variable speed drive system (VSDS), integer and non-integer harmonic currents are generated in the inverter. Via the electrical system of the inverter and the motor, an excitation ...