[Bldg-sim] Two Questions for the esteemed members of this fine list
Joe Huang
yjhuang at whiteboxtechnologies.com
Sat Sep 20 13:09:33 PDT 2014
Unless I'm missing something here, this seems like a very
straightforward modeling problem. I'm curious why you think that eQUEST
or DOE-2 can't handle it. There are plenty of chiller performance
curves, and you could also create your own if you have data on the
chiller characteristics.
On 9/20/2014 12:25 PM, RobertWichert wrote:
> I am working on modeling a small computer room. The computers are the
> major load. The space is served by a small water cooled chiller and
> an air handler, with economizer. The questions are:
>
> 1) Does EnergyPlus lend itself to such models, and are there specific
> tools that might be useful? I am interested in accurately modeling
> the computer with varying loads over the year, and with the economizer
> enabled to show the difference in various supply air temperatures and
> cooling tower strategies (multiple versus one cooling tower, variable
> versus multiple fans) as well as various economizer strategies (return
> air versus supply air control and the resulting chiller loading). I
> am also interested in detailed chiller modeling, as the load varies
> from full economizer to full chiller and the chiller part-load
> performance is a key attribute. The chiller supply temperature will be
> higher than typical for chilled water coil cooling, so that must be
> flexible as well.
>
> 2) Is there any specialized modeling tool that anyone knows about
> that is especially good for such modeling? I would instinctively say
> EQuest is NOT good for that, but I may be mistaken. I could make
> EnergyPro work, but I do not believe that the cooling tower / chiller
> interface is detailed enough using DOE.2.
>
> Your thoughts are appreciated.
>
>
> Cheers!
>
>
>
More information about the Bldg-sim
mailing list