Hi all,
I am trying to get an idea of how to model a new mixed use building (Office
+ retail) with a existing district cooling plant serving other office
buildings on the site for LEED purposes.
Since it is a district cooling system, the plant load, efficiency ,
performance and operation is dependent on the other existing buildings on
the site as well. I am not sure how to separate the energy metrics in the
model for the plant associated with the new proposed building.

1.Does the baseline building model also has to take into consideration the
existing plant in simulation or the baseline will be just modeled is it
will be for a new building with the plant type being decided by the
conditioned square footage of the new proposed building?
2. When modeling the proposed building, do i neglect the effects of other
building on the district cooling plant performance and use the part load
efficiency curves and load shedding schedules for the plant equipments (
towers, pumps, Chillers) as if they were serving only the new proposed
building? has anyone done a model like this and how does the LEED
guidelines approach this issue?

The simulation community help is much appreciated.
Please respond if you have any questions as well.

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Thanks

Sincerely,
Amit Bhansali