[Trace-users] WSHP

[Oscar Buchely L.]

Thanks for your comment  Dan

I just found in the help this paragraph:
/
/ Thermal Storage type

/Warning://All water source heat pumps must have a Heat Pump Loop 
Storage tank specified here. If the loop is not connected to some type 
of storage, a small storage tank must still be entered to model the 
storage effect of the condenser water loop. /

I don´t have any thermal storage so I am trying to size a small tank for 
the simulation.

MSc Oscar Buchely
Ingeniero de Proyectos
Soluciones Energéticas Sostenibles
www.ses-ingenieria.com
Bogota - Colombia
Tel +57 1 6192633

On 02/05/2014 11:00 a.m., Briller, Dan wrote:
> Hi Oscar,
>
>  From what I know (I just did a similar project), you have to have the thermal storage capacity in the WSHP loop. The thermal storage is the "first responder" to calls for heat and cold from the zones (in this case, rooms). The cooling tower and supplemental heating boost the thermal storage as-needed but typically operate intermittently.
>
> Your model may have some other flaw(s)  that allows for the high savings. Or the 40% could be the normal condition (I just achieved 33% against a very difficult baseline). In addition, a COP of 4 is not that great (mine has a heating COP of 5.2 and cooling EER of 14.4).
>
> Hope that's helpful,
>
> Dan Briller
> RS&H
>
>
>
> Daniel L. "Dan" Briller P.E., LEED AP BD+C
> Energy/Environmental Engineer
> 10748 Deerwood Park Boulevard South
> Jacksonville, FL  32256-0597
> Phone: 800-741-2014 x2329 / Mobile: 571-314-4002
> mailto:Dan.Briller at rsandh.com
>
> Visit our website at http://www.rsandh.com
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> -----Original Message-----__________
>
> From: trace-users-bounces at lists.onebuilding.org [mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of Oscar Buchely L.
> Sent: Friday, May 02, 2014 11:51 AM
> To: trace-users at lists.onebuilding.org
> Subject: [Trace-users] WSHP
>
> Hello Trace users
>
> I´m modelling a WSHP plant with a COP of 4 and getting 40% reduction in cooling space energy consumption in comparison with a chiller with the same COP and similar performance curves. I have put "none" in thermal storage box in plant section for the WSHP.
>
>
> Any thoughts about the hight savings?
>
> --
>
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