[Bldg-sim] IES VE Ware

[Scott Schreffler]

Dear listers,
I was doing a simulation using VE Ware plug-in for sketchup carbon footprint tool, and I am not a technically savvy user, just a dumb architectural designer...so I had a question.
 
All variables were the same between two scenarios, except for the HVAC type.  Under one scenario I was simulating a split mechanical system with mechanical cooling, and under the other I was simulating a waterloop heat pump (which I assume is the same as geothermal heat pump?), and the fuel source was electric.
 
The carbon footprint for the waterloop heat pump was greater than the split system with mechanical cooling.  I would've thought it would be the reverse.
 
Can someone explain this to me?  Any other comments on the carbon footprint tool for VE ware sketchup plugin?
 
Thanks so much for your time.

Scott G. Schreffler, LEED AP
designer

DYKEMAN | INSPIRING EVERYDAY SPACES
architecture + interior design + visual marketing

tel: 425.259.3161 ext. 2355
fax: 425.259.5242
direct: 425.609.2355
mobile: 425.870.2656

scotts at dykeman.net
www.dykeman.net 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20100204/ba06ad08/attachment-0001.htm>