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  1. #1
    Join Date
    Mar 2007
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    TEWI Calculations



    Hi, I've done a bit of searching around google for information on TEWI calcs. I've found the formula and started working my way through it but am stuck on the indirect bit.

    Formula asks for 'energy consumption / year x indirect emission factors x lifespan'

    If I had a pack with 5 compressors, what rule f thumb would I use for the energy consumption? How about cabinets, coolers condenser fans? I have no idea what'indirect emission factors' are or where to find info on them.

    Can anyone help?



  2. #2
    Join Date
    May 2012
    Location
    England
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    Re: TEWI Calculations

    Quote Originally Posted by CJG21 View Post
    Hi, I've done a bit of searching around google for information on TEWI calcs. I've found the formula and started working my way through it but am stuck on the indirect bit.

    Formula asks for 'energy consumption / year x indirect emission factors x lifespan'

    If I had a pack with 5 compressors, what rule f thumb would I use for the energy consumption? How about cabinets, coolers condenser fans? I have no idea what'indirect emission factors' are or where to find info on them.

    Can anyone help?
    This slide show explains how they work.

    http://www.ecy.wa.gov/programs/air/p...lectricity.pdf

    Its American but the maths is still good.

    Rob

    .

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