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  1. JKEngineer

    Heat Flux

    Pipefire - It sounds like you have some circular reasoning going on. I base that on: if you know the radiation and the flux, then you can back calculate the flame T, but you are looking for the T -- so I think you don't have as much information as you present. How much actual field data do...
  2. JKEngineer

    Paper Stock apparent viscosities

    One source is TAPPI, the Technical Association of the Pulp and Paper Industry. (tappi.org) I know I have seen books with head loss vs. consistancy in the (distant) past and I believe that at least some of them were published by TAPPI. Jack Jack M. Kleinfeld, P.E. Kleinfeld Technical...
  3. JKEngineer

    Flare Radiation Shielding calc and hot spot temperature

    If I understand your question correctly: A heat transfer analysis including conduction through the bodies, convection to the surroundings, and radiation between the flare and the object and between the object and the surroundings would be necessary. If you know enough about the system, you...
  4. JKEngineer

    Depressuring systems

    I skimmed this thread and am a little confused by the fact that little mention, except in the case of external fire, is made of heat transfer from the environment to the vessel walls. The internal temperature of -50C may be the worst case for the vessel wall, but it does not seem to me to be a...
  5. JKEngineer

    Air thermal k at low pressure

    Thanks for the suggestion. I will have to get to a library, the only Prausnitz I have is on phase equilibria. I think I used one edition of the book you suggested for a course about 25 years ago, but borrowed it from the library at my job at the time. Jack Jack M. Kleinfeld, P.E. Kleinfeld...
  6. JKEngineer

    Air thermal k at low pressure

    Can anyone give me some leads or information on the thermal conductivity of air as a function of pressure for sub-atmospheric conditions? All help appreciated! Jack Jack M. Kleinfeld, P.E. Kleinfeld Technical Services, Inc. Infrared Thermography, Finite Element Analysis, Process Engineering...
  7. JKEngineer

    Air Leak or Steam Leak Survey

    Air leak surveys can be performed well by air borne ultrasound. UE Systems is a manufacturer of the instruments and well versed in their application. A contact there would be Mark Goodman. Their website is www.uesystems.com . Their main office is in Elmsford NY, just north of NYC. Where are...
  8. JKEngineer

    Oil/Water Seperation

    A liquid cyclone system might work. You would need to pump the material, which might make your emulsification worse. High flow rates should not be a problem though. Jack M. Kleinfeld, P.E. Kleinfeld Technical Services, Inc. Infrared Thermography, Finite Element Analysis, Process...

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