[Bldg-sim] How to model a New Building with an Existing District Cooling Plant

[Rob Hudson]

There is a guide that ASHRAE/LEED uses to model the district cooling
plants.  There is two methods to utilize, and each have their benefits and
constraints.  It is mentioned where to find it in the LEED manual and in
the most recent EAp2 Table 1.4 downloads.

Hope this helps,
Rob

On Thu, Mar 21, 2013 at 12:06 PM, amit bhansali <amitbhansali7 at gmail.com>wrote:

> 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.
>
>
> --
> Thanks
>
> Sincerely,
> Amit Bhansali, LEED Green Associate, M.S. , EIT
> Mobile: (+1)972-207-5180
>
> www.godparents.in
> Please do not print this e-mail unless necessary
>
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-- 
Rob Hudson
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