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

amit bhansali amitbhansali7 at gmail.com
Fri Mar 22 08:19:25 PDT 2013


Thanks to all,
i got the document "treatment of district or campus thermal energy...."
yesterday and it has enough information for me to model the building.
Thanks for all your help.

On 21 March 2013 20:42, Wealend, Edwin <e.wealend at cundall.com> wrote:

>  Amit,****
>
>
> There’s a fairly comprehensive document, “Treatment of District or Campus
> Thermal Energy in LEED V2 and LEED 2009 – Design & Construction,” which
> explains the options available to you, of which there are three:****
>
> ** **
>
> **·         **Measurement of existing plant to determine efficiencies****
>
> **·         **Simulation of existing plant with existing building to
> determine efficiencies****
>
> **·         **If data is unavailable for the above 2 options, then
> defaults are allowed.****
>
> ** **
>
> You model your baseline building as a normal standalone building, with the
> relevant chiller plant for the climate zone etc. Let me know if you can’t
> find a copy of the guide and I’ll send one over.****
>
>
> Regards,****
>
> Ed****
>
> ** **
>
> *Edwin Wealend*****
>
> Senior Engineer
>
> ****
>
> CUNDALL Hong Kong****
>
> 9th Floor Chinachem Johnston Plaza****
>
> 178-186 Johnston Road****
>
> Wanchai, Hong Kong ****
>
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> *From:* amit bhansali [mailto:amitbhansali7 at gmail.com]
> *Sent:* Friday, March 22, 2013 00:07
>
> *To:* bldg-sim at lists.onebuilding.org
> *Cc:* awalker at dfwcgi.com
> *Subject:* [Bldg-sim] How to model a New Building with an Existing
> District Cooling Plant****
>
> ** **
>
> 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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-- 
Thanks

Sincerely,
Amit Bhansali, LEED Green Associate, M.S. , EIT
Mobile: (+1)972-207-5180
             (+1)405-312-1047

www.godparents.in
Please do not print this e-mail unless necessary
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