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  • Cool Coatings Let Engines Run Hotter
    CVD emerges as coating of choice for high-temperature gas turbine components. Howmet Thermatech Coatings, and Alcoa business Design engineers striving to improve the thrust-to-weight ratio, power, and fuel efficiency of gas turbine engines continue to demand higher engine-operating temperatures
  • Combustion Turbines
    A critical component in combustion turbines used by utilities to generate electricity is the crossfire tube which feeds natural gas to the turbine. This tube contains a packing set which, should it fail, will result in a significant gas leak, requiring shutdown of the unit and repacking
  • Flow Metering Challenges & Considerations
    and lubricants, aerospace applications present diffi cult fl owmetering challenges. Among today's common liquid and gas. fl owmeter technologies, are widely differing designs such as turbine, coriolis, magnetic, differential pressure and vortex meters. Each technology offers individual strengths
  • Cyclic Operation of Fossil-Fueled Electric Power Generating Units (.pdf)
    temperatures if cycling down to low loads. Other. considerations include: * Changes in flue gas velocity. * Changes in pollutant loading. For the turbine-generator set, consideration must be given to: * Increased stresses and wear on valve components due to extended periods of valve throttling. * Bearing
  • The next step in rapid prototyping
    . The warmer plate operates at 212 F. PPSF has the best heat, chemical resistance, and strength among RP materials. It is used by FDM Titan systems from Stratasys Inc. The 10-part turbine and housing were built by a gas-handling company on a Z810 machine from Z Corp. The complexity shows one trend
  • Mitigation of Fretting Fatigue Damage in Blade and Disk Pressure Faces with Low Plasticity Burnishing (.pdf)
    method have been combined to successfully mitigate a wide variety of surface damage ranging from FOD to corrosion pits in titanium and steel gas turbine engine compressor and fan components. LPB mitigation of fretting induced damage in Ti-6AL-4V in laboratory samples has now been extended to fan

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