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  1. #1

    Thumbs up HVAC equipment selection

    A HVAC plant design For 3 story building.
    Total load 330 ton.
    Ground floor has 80 ton
    1st floor has 120 ton
    2nd floor has 130 ton.

    Outdoor dry blub temp 45C
    Outdoor wet blub temp 30c
    Required indoor temp = 25c
    Relative humidity = 50%

    Ground floor area 160*42=6720ft2
    Ground floor volume=160*42*13=87360ft3
    And
    1st and 2nd floor areas are equal.
    A1=A2=160*62=9920ft2
    V1=V2=160*62*13=128960ft3

    So i require selection of suitable AHU and chiller.
    Kindly suggest how the number of AHU, chiller, boiler
    And cooling tower will be selected.(assume missing data)

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,595
    Outdoor wet bulb of 30? Wow. Sounds like the jungle

  3. #3
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,769
    Actually, closer to a desert with that high of an ambient John. Thats only 35%RH at 113F outdoor temp.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,595
    No kiddin? I didn't stop to think of it that way. Just every time I feel 80F wetbulb, I'm sweating like a stuck pig. But then drybulb is usually in the 80s as well. I guess nobody wants to design his building for him.

  5. #5
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,769
    Ran it through Carrier psychometric.

    Don't thin too many will design without seeing building/prints.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #6
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,924
    HVAC Manufacturer

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