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? :o

Quote:

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Originally Posted by CJG21

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? :o

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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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