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  1. #14
    Join Date
    Feb 2008
    Location
    Vancouver, BC
    Posts
    41
    Quote Originally Posted by 270wsm View Post
    Where do they come up with these figures? I come up with something different all together.


    1 HP=746 watts
    1 watt= 3.413 BTU
    1 HP= (3.413 x 746)= 2546 BTU

    1/8 HP=318.25 BTU
    Don't really know, it was given to us. There are 9 tables, U Values, Transmission Heat Gain Factors, Solar Load, Average Air Changes per 24h, ect ect..

    I know the teacher did say something that he didn't agree with the Heat Gain table from Electrical Motors. Your outcome looks more realistic.

    BTW: 1 watt = 3.412 BTU's

  2. #15
    Join Date
    May 2004
    Posts
    1,888
    Quote Originally Posted by Rossco View Post
    Don't really know, it was given to us. There are 9 tables, U Values, Transmission Heat Gain Factors, Solar Load, Average Air Changes per 24h, ect ect..

    I know the teacher did say something that he didn't agree with the Heat Gain table from Electrical Motors. Your outcome looks more realistic.

    BTW: 1 watt = 3.412 BTU's
    Actually, it's 3.4129 I just rounded it up.

  3. #16
    Join Date
    Feb 2009
    Location
    Wisconsin
    Posts
    313
    I love math, it never lies. Never. The trick is to get the formula right.
    You have to fight through some bad days to earn the best days of your life.

  4. #17
    Join Date
    Oct 2002
    Location
    Lexington, NC
    Posts
    5,193
    Quote Originally Posted by 270wsm View Post
    Actually, it's 3.4129 I just rounded it up.
    UP? That would have been 3.413.
    The main thing is to keep the main thing the main thing!

    If "the grass is greener on the other side", it likely has been fertilized with Bull$hit!

  5. #18
    Join Date
    Jun 2010
    Location
    Miami
    Posts
    258
    Nice they make you guys think that much.

    Needed a condenser for data room AC system the other day. All could my guy could say is "need one for two 5 ton compressors". I asked him "what type of compressors"?. He totally couldn't understand why it would matter if they were tin can hermetics or open drive compressors. I didn't even bother with TD and desired SCT.

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