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  1. bman289

    duct sizing for range hood vent to exterior

    stel, In addition to the post from Drazen, you'll need to calculate the resistance in the duct system and see if your fan will move 800 cfm at that pressure. If your duct resistance is greater than the highest pressure of the fan, then you will not get your 800cfm. Additionally, 800 cfm is...
  2. bman289

    ventilation of a note sorting machine (dust extraction)

    mechanicaldup, Dust control, look at the Industrial Ventilation post and see my reply. This is the same situation, probably a hood, round duct, dust collector, and fan. Exhaust air could be ducted to the AC system or vented to outside. bman289
  3. bman289

    Industrial Ventilation Program

    harvey13, Having done industrial ventilation for several years, there is no program that I'm aware of. If you are needing information for design of an exhaust system, or ventilation systems, I suggest you get a copy of Industrial Ventilation by the ACGIH (American Conference of Governmental...
  4. bman289

    Simple A/C calculations

    HankVRSI, Manual J is a widely used method to size houses. This link explains a little. DUMechEng's link is a good one.... http://www.proctoreng.com/articles/sidebar.html Regards,
  5. bman289

    chilled water pipes recommended velocilty

    etchyHA, I assume you mean both horizontal and vertical pipes. If you have access to the Carrier System Design Manual, look in Part 3, Chapter 2 for basic design rates. My ROT was to design small pipes at max 5 ft/sec and large pipes at 10ft/100ft of friction loss. Also, get a copy of...
  6. bman289

    Jacketed Expansion Joint

    The internal and jacket need to be code stamped. Internal FV-50psig@460deg F and Jacket to 450psig@460 deg F. Thanks, Brad
  7. bman289

    Jacketed Expansion Joint

    Does Section VIII Div I Part UHX cover jacketed expansion joints? I have a jacketed expansion joint on the discharge of a TFE that the client is requiring "Code-Stamped". Just looking for a starting point for my design basis. Thanks, Brad
  8. bman289

    Nozzle Loads - Directions Applied

    To all, Many thanks for the input. I am heading to Houston in October for the ASME Sect VIII Div I class. Also, found a book, "Pressure Vessel Design Manual" Moss, that looks pretty good. Regards, Brad
  9. bman289

    Nozzle Loads - Directions Applied

    TomBarsh and jte, Thanks for the info, much appreciated. I have a question poised to the spec writer now to determine where the loads are applied, flange or nozzle connection. Thanks again, Brad
  10. bman289

    Nozzle Loads - Directions Applied

    I'm new, obviously, and I would like to ask a basic question. I have been given allowable nozzle loads with the following terminology. Radial Reaction, Tangential Reaction, Longitudinal Bending Moment, Circumferential Bending Moment, Rotational/Twisting Moment. I am a little lost as to the...

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