[BLDG-SIM] Cooling in the baseline model of the building performance rating method

Christian Frenzel frenzel at transsolar.com
Wed Nov 7 02:19:07 PST 2007


Hi all,
 
I have following problem according to the performance rating method
(appendix G) of the 90.1-2004 Ashrae standard. Hopefully someone can
help me.
The problem is I built the proposed design of a building that buys
external cooling power (and the thing is that it has to be bought
external because of the owners guidelines).
Now by building the baseline model there is the question how to include
this fact. If as written in the appendix G all cooling power would be
delivered
by a screw chiller then this would be much cheaper because the external
bought cooling power is more expensive than electricity.
In this case the baseline model would be more effective than the
proposed model what for sure is not aimed. 
Is there a possibility to avoid this fact and to seperate external
bought cooling power? 
I'm really looking forward to any feedback about this issue.
 
With kind regards
Christian
 


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