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  • Users: mauner
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  1. mauner

    cast iron material

    Hi everyone, Can anyone provide a comparison between cast iron for a motor frame between these two specifications? ASTM A47/A47M JIS G5501 FC200 Does FC200 correlate to the strength? Thanks in advance, mauner
  2. mauner

    PV roof mounts

    thread626-261703 My roof has a 52 panel PV array with a DC rating of 11.7 kW. The standard installation of U-tracks are bolted to the roof, which has a 30 degree angle. My peak power production occurs in late March and September is 10 to 10.5 kW for the solar noon hour - my house is in New...
  3. mauner

    Climatic Weather Conditions

    Hello all, Does anyone have weather data for temperature and humidity conditions in the Persian Gulf? Any military standards or handbooks? Thanks in advanced
  4. mauner

    Better Heat Transfer in PWR

    I came across this invention that improves heat transfer in a Pressurize Water Reactor...
  5. mauner

    Centrifugal R-134a Air Conditioning Unit

    Hello all, I have a 200 ton unit designed for chilled water at 720 gpm and 44F supply. What happens to the compressor power consumption/efficiency if I increase the flow to 900 gpm but keep the same load and supply temperature? Simply put, from a kW/ton perspective is it better to have a...
  6. mauner

    Problem at Kewaunee Triggers Alert

    I was amazed to read that the Shift Manager declared an Alert. See Story link. http://www.themilwaukeechannel.com/news/9040658/detail.html?rss=mil&psp=news After reading NRC event numbers 42528 & 42530 on 4/27/06, I don't understand why an Alert would be declared. If a turbine trip provides...
  7. mauner

    Low Pressure Air throttle valve

    I am designing a low pressure air system to supply dry air to an electronic cabinet. The supply pressure must be reduced from 2.5 psig to approximately 0.02 psig (0.55 inH20) to supply a flow of 6 SCFH. What type of throttle device would provide the best control at such a low outlet pressure...
  8. mauner

    Pipe Support for motor operated valve

    Hello all, I am working on a project that replaces a 2-inch NPS gate valve with a motor operated valve. The new valve and actuatuator has a weight of 100 lbs. The 2-inch piping is 90-10 copper - nickel with a min wall of 0.065. The system has a design pressure of 150 psig and temperature of...

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