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  1. #1
    Join Date
    Jun 2006
    Posts
    1
    Hello everybody...
    i would like to know the correct procedure to calculate
    heat load..
    i would like to know how heat load and cooling estimations are done for malls & multiplexes..
    can anybody help me in this regard?

  2. #2
    Join Date
    Mar 2003
    Posts
    7,314
    in my world, i dont do it.......i pay my consulting engineer to do this. I give him a bais of design, building type, envelope etc, he gives me a quote for his design fee, that is included in design build price. if plan and spec, this is already done.

  3. #3
    Join Date
    Dec 2004
    Location
    Derby City
    Posts
    3,957
    kapk20: your answer is spelled: P R O F E S S I O N A L M E C H A N I C A L E N G I N E E R. There are guidelines that exist when looking at spaces such as what you are referring to. Not only from a load standpoint (heating and cooling requirements) but also for infiltration and outside air. Consult a professional. All the best, John.
    Everyone has a purpose in life..........even if it's to be a bad example.

    Seek first to understand, before seeking to be understood.

  4. #4
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579

    You need to obtain and learn the material and process in ACCA's Manual N. Manual J is for residential and Manual N is for commercial.

    Be prepared to spend time in study and practice. You must be patient and willing to put in the study time with either or both of these manuals. Manuals J & N are the industry stardards for performing load calculations.


  5. #5
    Join Date
    Sep 2006
    Location
    Tennessee
    Posts
    399
    Edited: for instance:

    http://oikos.com/esb/50/manualj.html

    [Edited by bdclark on 09-22-2006 at 09:40 PM]
    UA LOCAL 614...WE DO IT RIGHT THE FIRST TIME

    Always remember, those who hate you don't win, unless you hate them. And then, you destroy yourself. -Richard Nixon-

  6. #6
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579
    Originally posted by bdclark
    And remember Manual J and Manual N both leave some leeway...there have been instances where guys have used 75-85% of the manuals'"calculations" and have been very accurate and effecient with their "calculations."
    I have no idea of what you just said, none whatsoever.


  7. #7
    Join Date
    Sep 2004
    Location
    Kansas City, Kansas, United States
    Posts
    13,817
    manual n is good, cheap software like e-z calc is better

  8. #8
    Join Date
    Sep 2002
    Location
    South Dakota
    Posts
    6,579
    The better software will operate off the manual J or N foundation and protocol.

  9. #9
    Join Date
    Jun 2006
    Posts
    3
    My recommendation is to do a search for load estimating programs. There are a lot out there so you have to be careful. Some are free and some are not. They all take time to learn, and you have to be careful with the results. Good luck!

  10. #10
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    5,997
    Originally posted by kapk20
    Hello everybody...
    i would like to know the correct procedure to calculate
    heat load..
    Review your state building code and read
    where the law documents
    " ... signed and sealed by a registered professional engineer. ... "

    Unless, of course, you are from Louisiana where chaos reigns.

    http://dictionary.reference.com/browse/chaos
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  11. #11
    Join Date
    Apr 2002
    Posts
    11,808
    Manual j is a residential procedure. Malls are often done as a shell you have to make allowances for future tenants.

    Mulitplex sounds like a theatres, must likely deemed an assembly occupancy, will need engineered drawings
    The way we build has a greater impact on our comfort, energy consumption and IAQ than any HVAC system we install.

    http://www.ductstrap.com/

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