Now showing items 3411-3430 of 17199

    • Heo, Junseok; Ryoo, Seungsoo; Jang, Jongoh; Bae, Seungil; Jeong, Hyoseok (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      As reliability of electric power system has been significantly improved in recent decades, electric motors are widely used in petroleum and chemical industries because they are rugged and reliable in severe condition. Motor ...
    • McConnell, Collin (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      During an investigation of bore damage on a flexible coupling between a motor and pump, the hubs non uniform design came into question as a potential factor. The American National Standard Flexible couplings Keyless Fits ...
    • Pellin, Johnny (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      A pair of large barrel pumps have experienced poor reliability and poor hydraulic performance since their installation in 1993. Despite repeated overhauls and design changes, the problem persisted. A detailed analysis found ...
    • Patterson, Donnie (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Review of start-up cavitation issue for pumps in series. Presents initial findings, performance curve review and solution that solved the issue.
    • Lee, Sanghun; Yang, Jinseok; Cho, Daekyung (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Piston Rods are one of the most vulnerable components in reciprocating compressors and, if failing, one of the most important parts that can cause serious secondary damage. Based on an actual experience with a piston rod ...
    • Mostafa, Mohamed Hazem Ahmed Sadek (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      This case shall discuss incidents of a deficient inspection affected an API610 vertical sump pumps, supplied to operate in a Sulfur Removal Unit (SRU) for a major gas project. One challenge in such failures is the iterative ...
    • Ropp, Christopher "Topher" (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      The customer experienced short seal life on a set of multi-stage, double ended pumps that were commissioned in 2009. A single seal design with piping plan 23 system was used with pump cooling jackets. The average seal life ...
    • Cich, Stefan; Moore, Jeff; Day-Towler, Meera (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      During the testing of a 1 MWe power loop with super critical co2, it was discovered that dry ice formation across dry gas seals would be an issue. This case study looks at the negative effects of dry ice formation and how ...
    • Obst, Larry; Savini, Giancarlo; Dechman, Jim; Parlos, Alex (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      TBD
    • Onari, Maki; Boyadjis, Paul; Karatt, Vijesh; Orlins, Joe (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      TBD
    • Williams, Martyn (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      During a normal run cycle the compressor performance started to decline (again) due to chloride contamination, a known issue. The usual approach was to shut the process unit down and turn the compressor off, then removing ...
    • Broerman, Eugene; Simons, Sarah; White, Ben; Smith, Robert (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      An unexpected vibration issue was seen at two of Tallgrass Energys recently installed compressor stations (Chandlersville and St. Paul) and was associated with certain operating conditions when specific combinations of the ...
    • Brandl, Andreas; Ladd, John (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Reliability and performance related issues of pistons and cylinder rings can be avoided in the vast majority of cases and the piston should never be the MTBF (Mean Time Before Failure) bottle neck. Even for non-lube machines ...
    • Brandi, Andreas; Bulloch, Cory (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Reliability and performance related issues of pistons and cylinder rings can be avoided in the vast majority of cases and the piston should never be the MTBF (Mean Time Before Failure) bottle neck. Even for non-lube machines ...
    • Ishimoto, Leonardo; Marques, Renner (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      This case study presents a presence of radial subsynchronous vibration during mechanical running tests of High Pressure Compressor following API 617 requirement. During the tests it was investigated how the lateral vibration ...
    • Yu, John; Peton, Nicolas (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      This case occurred during startup after outage on a steam turbine generator. Vibration reached over full scale of 20 mil pp at generator drive end bearing and therefore tripped the unit. The major vibration component that ...
    • Macek, Michael; Morrison, Monte (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      A geothermal power producer located in New Mexico, USA operates four screw expanders, each rated nominally at 1,000 kW. Chronic, extremely short expander life manifested through catastrophic bearing failure has significantly ...
    • Nakamura, Yuki; Tsurusaki, Yuzo; Oishi, Yusuke; Fujimura, Norihito; Sasaki, Yuichi; Hara, Akihiro (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Blade failure was caused by a huge alkaline element of Na flowing into the steam turbine from upstream due to improper water treatment. In this presentation, we will inform the reason why Na precipitated in dry steam ...
    • Nishiyama, Kenichi; Jain, Rishav; Oishi, Yusuke (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      Precise and stable steam flow control to the Turbine directly relates to improved steam turbine speed and load control and reduced system mechanical wear. This paper presents a complete failure of a Governing valve seat ...
    • Kim, Bumsu; Seo, Seokho; Lee, Sangjoo; Kwon, Sanggyn (Turbomachinery Laboratory; Texas A&M Engineering Experiment Station; Texas A & M University. Libraries, [2019])
      In case of copressors operated in evironment of wet hydrogen sulide, Sulfide Stress Craking could act critical mechanism of impeller failure. This case study deal with what make sulfide stress cracking and how to take a ...