Now showing items 16553-16572 of 17199

    • de Guarda Matos, Danilo; Silva de Matos, Wiriton (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      This paper describes the investigation of whether the vibration shock limits were exceeded on the transportation of 2 gas turbines. This investigation was requested due to an improper suspension type of the carriage used ...
    • Smith, Donald R.; Woodward, Glenn M. (Texas A&M University. Turbomachinery Laboratories, 1986)
      Vibration field data was measured on several large motor-driven vertical cooling water pumps which experienced excessive wear of the impellers, wear rings and seals after a short period of operation. The data indicated ...
    • O’Neil, Mark (Texas A&M University. Turbomachinery Laboratories, 2011)
    • Gruwell, David R.; Zeidan, Fouad Y. (Texas A&M University. Turbomachinery Laboratories, 1998)
      This lecture discusses how the vibration characteristics and eccentricity measurements were combined with rotordynamic analyses to help improve the reliability of a turbine generator unit. It also explains certain ...
    • Annese, Francesco; Brizzi, Rita; Guastamacchia, Paolo; Yahaya, Mohamad Raba'i (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries; Texas A & M University. Libraries, 2020)
      This case study discusses the impeller redesign of 10 8x15 BB1 two stages Amine pump in a Gas Sweeting Plant in Malaysia. The original pump was supplied in 1996 and after some design changes it had an history of recurring ...
    • Walter, Thomas J.; Zelingher, Shalom (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1989)
      Analytical and experimental assessments of the vibration characteristics are described for two 700 hp, vertically mounted centrifugal service water pumps following their conversion from fixed speed to variable speed ...
    • McLaughlin, Donald W.; Nagy, John F.; Berning, Jonne L. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1989)
      The Heber Project is a demonstration power plant which operates on a binary cycle using a geothermal heat source. It has four booster pumps in the hydrocarbon working fluid circuit. These pumps have had a long history of ...
    • Jun, Ker Pin; Sing, Ng Wei (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
      A special purpose steam turbine has started to experience intermittent radial vibration spikes. The turbine is used to drive a Hydrogen Recycle Gas Compressor in Aromatics unit. No abnormality observed on the compressor ...
    • Schiavello, Bruno; Cicatelli, Giancarlo (Texas A&M University. Turbomachinery Laboratories, 2007)
      Several pump units of the same design installed in various locations is the USA with different duties exhibited high vibrations above API limits with process fluids (SG - 0.5 to 0.6) from rated point down to minimum ...
    • Schiavello, Bruno; Cicatelli, Giancarlo (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 20: Several pumps of same design exhibited field vibrations above API limits, dominated by Vane Passage Frequency (VPF). Root cause analysis included both experimental and theoretical paths. Experimental ...
    • Cicatelli, Giancarlo; Schiavello, Bruno (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, 2022)
      Several pumps of same design exhibited field vibrations above API limits, dominated by Vane Passage Frequency (VPF). Root cause analysis included both experimental and theoretical paths.Experimental investigation , with ...
    • Wright, Gary; Peton, Nicolas; Drygin, Sergey; Yu, John; Davies, Dave (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)
      “Part 1 of the case history for this return to service follows on from the 2021 ATPS “ presentation which covered off the Expander related issue (labyrinth seal rubs) preventing the NAP 2 plant from successfully re ...
    • Lifson, Alexander; Simmons, Harold R. (Texas A&M University. Turbomachinery Laboratories, 1990)
      The overall concept of vibration monitoring is presented based upon theory and the practical constraints of machinery construction, transducer characteristics and the cost/benefit ratio of available systems. General features ...
    • Walter, Thomas J.; Marchione, Matthew M.; Shugars, H. Gordon (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1987)
      Recent efforts to develop and implement techniques to monitor and diagnose problems in submerged vertical shaft pumps are summarized. Projects based on iterative analytical and experimental efforts were implemented on ...
    • Behnke, Paul (Texas A&M University. Turbomachinery Laboratories, 2008)
    • Marscher, William D.; Olson, Eric J.; Onari, Maki M.; Boyadjis, Paul A. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      This course presents analysis and testing methods for pumps and turbomachinery. Focus is on centrifugal pumps of all types, centrifugal compressors, axial compressors, fans, steam turbines, and gas turbines. Rotordynamics ...
    • Litton, William R.; Matlock, J.D. (Texas A&M University. Turbomachinery Laboratories, 2008)
      Installing VFDs on pumps that were formerly constant speed pumps can cause new vibration problems to be encountered. Acoustical resonance conditions can occur in the long cross over. New methods of measuring acoustical ...
    • Marscher, William D.; Olson, Eric J.; Onari, Maki M.; Boyadjis, Paul (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2015)
    • Marscher, William; Olson, Eric; Onari, Maki; Boyadjis, Paul (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2017)
    • Wilcox, Ed; Uere, Martin (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2017)