Now showing items 60-79 of 180

    • Dry Gas Seals: General (Installation, Operation, Troubleshooting, and Retrofitting), Controls 

      Asokan, S.P.; Srinivasan, R Sathya; Baldassarre, Leonardo; Bhat, Vasanth; Carmody, Chris; Doorenbox, Athal; Goebel, Daniel; Weegenhausen, Michael; Forsthoffer, Michael Sean; Forsthoffer, William Eugene; Woon Lip, Teo (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Suggested Topics for Dry Gas Seals Discussion group: • DGS operating characteristics • Unidirectional versus bidirectional • Seals faces and seats, O rings materials • Explosive decompression • Primary seal gas supply ...
    • Dynamic Analysis of a Multi-Stage Compressor Train 

      Garcia-Hernandez, Augusto; Bennett, Jeffrey A.; Brun, Klaus (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Technical Brief 4: A complex multiple-stage compressor train which is part of an off-shore booster installation was facing process and mechanical related problems. The frequency of these problems has increased lately leading ...
    • Dynamic Simulation and Testing To Assess Rundown Speed Of A Compressor 

      Kurz, Rainer; Zwerver, Rienk; Simons, Sarah; Alvarado, Adrian; Brun, Klaus (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Dynamic simulations are frequently conducted to verify the behavior of compressor stations during transient events. The most difficult situation to analyze is the event of an emergency shutdown, due to the very fast ...
    • Effect of Inlet Cooling on the Performances of Isotherm Main Air Compressor Used for ASU Applications 

      Porreca, Luca; Zhu, Wentao (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 10: Main air compressors used for air separation units (ASU) applications have a suction at ambient conditions and deliver air to a pressure range between 5.6 ~ 6.5 bara. Therefore, the performances of the compressor ...
    • Effective Procedure for Turbomachinery Field Balance 

      Pescioni, Alessandro; Maragioglio, Gaspare (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      When unbalance induced vibrations exceed allowable limits, a more accurate system balance is required. If performed at site on assembled machines, it is commonly called field balance. Key point of the activity is the ...
    • Effects of Shaft Geometric Unconformities on the Rotor-Dynamic Behavior in Hard Coupled Equipment 

      Boccadamo, Gianluca; Agnoletti, Paolo; Maragioglio, Gaspare (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 17: This case study deals with a 25MW turbo-generator train with a semi-rigid connection between generator and gearbox. For this application, machine alignment and connection is a key factor for a smooth ...
    • Emergency Damage Restoration Experiences of 25MW Heavy-Duty Gas Turbine: Bearing Retrofit Design and Test Run 

      Lee, An Sung; Kim, Byung Ok; Sun, Kyung Ho; Park, Byeong Kyu; Bae, Young-Soon (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 6: A 25MW gas turbine had been damaged during operation. Particularly, its tilting pad journal bearings and shaft journals had suffered complete wiping‐out and deep crack damages, respectively. For an emergency ...
    • Emerging Failures in Gas Turbine Engines Operating in Hot Environments 

      Palaniappan, Kaartik; Uptigrove, Stan; Broomfield, Steve; Rizzetto, Camille (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Two (2) gas turbine engines operating offshore experienced Domestic Object Damage (DOD) failure with damaged blades in the HP compressor section. The failures were caused by repeated use of a component undergoing wear ...
    • Enhancement of Pump/Plant Performance by Correct Evaluation of Process Fluid Viscosity Variations and Pump Geometry 

      Cicatelli, Giancarlo; Schiavello, Bruno (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 16: In the modern pump industry, processed fluids are characterized by a wide spectrum of viscosity values. An unpredicted variation of actual process fluid properties, including viscosity, may lead to unexpected ...
    • Erosion Prediction of Gas Turbine Compressor Blades Subjected to Water Washing Process 

      Chiariotti, Alessandro; Borello, Domenico; Venturini, Paolo; Costagliola, Salvatore; Gabriele, Serena (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Blade fouling is a relevant problem in turbomachinery applications. It affects both compressors and turbines. In the first case, fouling can be generated by the presence of dust, ashes or brackish air (in offshore ...
    • Evaluation of Various Methods for Manufacturing One Piece, Small Tip Opening Centrifugal Compressor Impellers 

      Laney, Scot; Bauer, Derrick; Ando, Akiyoshi (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 12: Closed centrifugal compressor impellers have been manufactured using several methods through the years. Due to limitations of the materials and machining processes, most of these impellers have been manufactured ...
    • Examination of Methods of Dry Gas Seal Supply, Regulation, and Monitoring 

      Bakalchuk, Vladimir; Dwyer, Kevin; Hosanna, Rich; Chinnaswamy, Sreenivasulu; Eisenmann, Jr., Robert; McCraw, Jim (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Compressor Dry Gas Seal Failure is a common issue that affects Turbomachinery train availability. Since most turbomachinery trains are un-spared critical assets, unscheduled shutdowns have a major impact to the operating ...
    • Experimental Evaluation of the Effectiveness of Online Water-Washing in Gas Turbine Compressors 

      Brun, Klaus; Grimley, Terrence; Foils, William; Kurz, Rainer (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 7: An investigation of the effectiveness of online combustion turbine axial compressor washing using various purity grade waters and commercial washing detergents was performed. For this project, blade surface ...
    • Failure, Repair and Overhaul of 5 MW Right Angle Reduction Gear Box 

      Bukhari, Haseeb; Ahmed, Ahtsham (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      L-1403A &B are 5 MW Right Angle –Double reductions gearboxes installed between Turbine (TP-1403) and Cooling water Pump (P-1403). Both gearboxes reported high vibration after 15 months of continuous operation one after the ...
    • Field Evaluation of an Offshore Pumping System 

      Bennett, Jeffrey A.; Garcia-Hernandez, Augusto; Muñoz-Prior, Marco Antonio; León-Dorantes, Moisés (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Technical Brief 5: An evaluation was performed on one of the largest offshore facilities belonging to PEMEX Exploration and Production due to forecasts predicting that future crude oil production will contain heavier oils. ...
    • Flow Induced Vibration Problem During Full Load Testing Of A Multi-Stage Centrifugal Compressor 

      Kurashiki, Yutaka; Hirao, Takahiro; Yoshida, Hidenori (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      During FAT of a centrifugal compressor, non-synchronous vibrations were observed. The dominant frequencies are different from both a) the rotor system natural frequency, and b) typical rotating stall frequency in parallel ...
    • Four Quadrant Centrifugal Compressor Performance 

      Belardini, Elisabetta; Rubino, Dante Tommaso; Tapinassi, Libero; Pelella, Marco (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Lecture 16: The characterization of the compressor behavior in all quadrants of performance map has acquired, in the last years, growing attention. Two dedicated experimental campaigns have been performed to characterize ...
    • Frequency Dependence of Piles' Dynamic Stiffness 

      Giancotti, Marco; Margiotta, Alessio; Orlando, Maurizio; Spinelli, Paolo (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Technical Brief 6: The evaluation of the dynamic behavior of deep foundations for Turbomachinery Modules is not a simple task due to uncertainties in the evaluation of the soil shear modulus and the approximations introduced ...
    • Fundamentals of Fluid Film Journal Bearing Operation and Modeling 

      He, Minhui; Cloud, C. Hunter; Byrne, James M.; Vázquez, Jose A. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 14: Widely used in turbomachinery, the fluid film journal bearing is critical to a machine’s overall reliability level. Their design complexity and application severity continue to increase making it challenging ...
    • Fundamentals of Fluid Film Thrust Bearing Operation and Modeling 

      He, Minhui; Byrne, James (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Widely used in turbomachinery, the fluid film thrust bearing is critical to the overall reliability of a machine. Their design complexity and application severity continue to increase, making it challenging for the plant ...