[Bldg-sim] District Thermal Energy in LEED

[gail]

Hi Jason,

For Step 1, you should model it as indicated in the District Energy
Requirements document with hot water fossil fuel boilers.  Your Step 2
model would reflect PTHP systems.

Best Regards,
Gail Hampsmire

On 12/10/09, Siensa, Jason <JSiensa at klingstubbins.com> wrote:
> I'd like to get some feedback on my case regarding district Thermal
> Energy.  I've had conflicting responses on the subject and have found no
> definitive answer.
>
>
>
> The baseline system qualifies to be modeled as System type 2 (PTHP). The
> proposed system uses district chilled water only and no central heating
> plant.  According to table 3, in the Required Treatment of District
> Thermal Energy... document, Systems 1&2 are to be modeled as constant
> volume fan coil units with hot water fossil fuel boilers.  My proposed
> system uses all electric heating coils.  How is this cost-neutral
> modeling?
>
>
>
> Should I stay consistent with my proposed design and model the baseline
> as constant volume fan coil with electric heating coils, or should I
> model the baseline as constant volume fan coil with hot water electric
> boilers?
>
>
>
> Thanks, in advanced for any responses.
>
>
>
>
>
> Jason Siensa
> HVAC Engineer
>
>