Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by bcvd45

  1. bcvd45

    Shared Alarm Systems

    That just about nails it. Thank you, I have been searching for a while. So, they probably need to run it past their local fire marshall/regulating body, but it seems as though per the wording of NFPA 72 it is acceptable. Thank you for your quick response!
  2. bcvd45

    Shared Alarm Systems

    I do believe that NFPA does say distinct, but that also raises debate as to what 'distinct' means. Is a separate tone or code from the same system distinct...etc... I have also seen the term, clear and identifiable, but that also allows the same debate to ensue. Thank you for your response...
  3. bcvd45

    Shared Alarm Systems

    I am currently doing a review of codes to see if there is any code that would prohibit using the fire alarm horns (With a separate code) to use for Ammonia leak detection alarms. So far what I have seen from ASHRAE/IMC/IFC/NFPA, there is nothing that requires the fire system to have its own...
  4. bcvd45

    Clean Room Sqft/Ton refrigeration

    I believe the total was in the ballpark of 250 MBTUH latent. Don't have it in front of me though.
  5. bcvd45

    Clean Room Sqft/Ton refrigeration

    Well that is pretty close to the actual numbers. However, procedurally they are only allowed 2 people in this space at any given time. So if you take 2 people in 573 sqft. So personnel should only be ~246 sqft/person. I keep getting 909 as my final number, which may just be what it is...
  6. bcvd45

    Clean Room Sqft/Ton refrigeration

    This room also has a much higher air change rate as it is a grade 'A' filling room with wall to wall laminar flow coverage. Design requires 120 ft/min across the entire area of the ceiling.
  7. bcvd45

    Clean Room Sqft/Ton refrigeration

    I think it should be higher because we also have a 25 hp re-circulation fan from which we need to handle a heat load as well.
  8. bcvd45

    Clean Room Sqft/Ton refrigeration

    Thanks guys, There is only a very small heat load from equipment in the room, and the outside air is set at 20% right now. I will do the calcs over again just to make sure I am not missing anything.
  9. bcvd45

    Clean Room Sqft/Ton refrigeration

    Hi all, I have been reading around on this forum for many years, and finally have a question to ask for myself. Really I am just looking for a guideline to make sure I am in the correct ballpark with my numbers. I am designing a new air handling unit for a Pharma facility, and have gotten to...

Part and Inventory Search