Browsing Turbomachinery and Pump Symposia by Title

Now showing items 2066-2085 of 2440

    • Successful Avoidance Of Major Secondary Damages Using Proximity Measurements To Detect A Partially Fractured Piston Rod. 
      Ladwig, Uwe; Morrison, Skip (Texas A&M University. Turbomachinery Laboratories, 2009)
    • Successful Modification Of Vertical-Turbine Pumps For Capacity And Reliability Improvement 
      Morales Casanova, César A. (Texas A&M University. Turbomachinery Laboratories, 2000)
      A modification of seven 560 hp vertical-turbine pumps was carried out with outstanding results to improve their actual capacity. The installation was limited to 64% of its rated capacity, which was never reached, and the ...
    • Successful Online and Offline Cleaning of Steam Turbines With and Without Disassembly 
      Gomez, Bladimir; Snider, Barry (Texas A&M University. Turbomachinery Laboratories, 2013)
    • Successful Selection And Operation Of Gas Turbine Inlet Filtration Systems 
      Wilcox, Melissa; Kurz, Rainer; Brun, Klaus (Texas A&M University. Turbomachinery Laboratories, 2011)
      A gas turbine inlet filtration system is important for successful operation. The filtration system minimizes the occurrence of foreign object damage, erosion, fouling, and corrosion. The selection of the inlet filtration ...
    • The Suction Performance Of Centrifugal Pumps Possibilities And Limits Of Improvements 
      Hergt, Peter; Nicklas, Alexander; Mollenkopf, Gerhard; Brodersen, Sonke (Texas A&M University. Turbomachinery Laboratories, 1996)
      Following a brief description of the general suction performance of pumps and starting from an impeller designed for standard requirements, it will be discussed by which modifications and up to which limit the suction ...
    • Sulfidation And Its Inhibition In Turbomachinery 
      DeCrescente, M. A. (Texas A&M University. Gas Turbine Laboratories, 1980)
      United Technologies Research Center has carefully investigated the detailed mechanisms of gas turbine sulfidation and its inhibitions. Sulfidation, the salt accelerated oxidation of superalloys, is addressed in terms of ...
    • Superimposing Planetary Gears As Variable Speed Drives for Rotating Equipment 
      Tilscher, Martin; Lauter, Bernd; Lindenmaier, Jochen (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2017)
    • Supplier Quality Improvement Process 
      Dubner, Richard M. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1991)
      The Chevron Supplier Quality Improvement Process is described herein. It starts by recalling the history of major mechanical equipment failures in the oil business. These problems led Chevron to the development of a ...
    • Surge Avoidance For Compressor Systems. 
      White, Robert C.; Kurz, Rainer (Texas A&M University. Turbomachinery Laboratories, 2006)
      This tutorial explains the surge phenomenon as well as the precursors of surge and the damage that surge can cause to the equipment. Then, methods to keep the compressor system from surge, i.e., modern surge control systems, ...
    • Surge Detection In An Industrial Axial Flow Compressor. 
      Linden, David H.; Parker, Charles A. (Texas A&M University. Turbomachinery Laboratories, 1996)
      Compressor surge can be a disruptive and potentially destructive phenomena in turbocompressors. A surge detection scheme utilized in shop and field testing of a 29,600 hp (22 MW) industrial axial compressor is described. ...
    • Surge Exploration Tests and Second Quadrant Characteristic Dynamic Modeling on Full-Scale Centrifugal Compressor 
      Calosi, Mirco; Pelella, Marco; Baldanzini, Fabio (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Surge exploration tests on a full-scale centrifugal compressor have been performed allowing an evaluation of the transient behavior and the mechanical robustness of the compressor even during a critical event such as Surge. ...
    • Surveying Tilting Pad Journal Bearing And Gas-Labyrinth Seal Coefficients And Their Effect On Rotor Stability. 
      Kocur, John A; Nicholas, John C.; Lee, Chester C. (Texas A&M University. Turbomachinery Laboratories, 2007)
      The evaluation of rotor system stability, which has become an essential part of rotordynamic analyses and rotating machinery design, relies heavily on the bearing and seal dynamic coefficient modeling to obtain an accurate ...
    • Symmetrical Seal Design: A Sealing Concept For Today 
      Netzel, James P. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
      The symmetrical seal offers a significant advancement in seal design to pump manufacturers and users it is the first alternative design to complex seal arrangements which are required to fit a stuffing box designed for ...
    • Synchronous Motor Lateral Vibration Dynamics - Diagnosis, Resolution, And Field Implementation. 
      Evans, B. Fred; Shabi, Larry G. (Texas A&M University. Turbomachinery Laboratories, 1998)
      A large, double ended drive synchronous motor experienced severe, limiting lateral vibration during commissioning of a major plant expansion. The motor driving a centrifugal compressor providing process air is decoupled ...
    • Synchronous Motors Start up as Induction Motors 
      Acosta, Eddie; Stroh, Chet (Texas A&M University. Turbomachinery Laboratories, 2006)
    • The Synchronous Rotor Instability Phenomenon (Morton Effect) 
      de Jongh, Frits M. (Texas A&M University. Turbomachinery Laboratories, 2008)
      This paper gives an overview on the "Morton Effect" and explains how synchronous rotor instability, due to nonuniform heating of bearing journals, can occur in high-speed turbomachinery. Theoretical investigation by Keogh ...
    • The Synchronous Rotor Instability Phenomenon—Morton Effect 
      de Jongh, Frits (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      This paper gives an overview on the “Morton Effect” and explains how synchronous rotor instability, due to non-uniform heating of bearing journals, can occur in high-speed turbomachinery. The paper was also presented in ...
    • Synchronous Thermal Instability Prediction For Overhung Rotors. 
      Kirk, R. Gordon; Guo, Zenglin; Balbahadur, Avinash C. (Texas A&M University. Turbomachinery Laboratories, 2003)
      Rotor thermal bending is a complicated phenomenon that can lead to unstable spiral vibrations. This phenomenon is primarily due to a temperature difference developing across the journal. The temperature difference can ...
    • System Problem Experience In Multiple Reciprocating Pump Installations 
      Parry, William W. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1986)
      Installations utilizing multiple reciprocating pump equipped with common suction and discharge headers can experience severe problems including cavitation, piping vibration and fatigue failure, or destruction of pump ...
    • A Systematic Approach To Case Recertification. 
      Abraham, Edward A.; Coleman, Daniel E.; Bielecki, William S. (Texas A&M University. Turbomachinery Laboratories, 1996)
      Turbomachinery life expectancy, economic conditions, and plant capacity enhancements have created a need for vintage compressors to be reevaluated and re-engineered for operational parameters that may not have been ...