[Bldg-sim] Chilled Water Loop / Bldg Modeling

[Bill]

Jason,
 
Based on your description, I don't think your best option is a
whole-building energy model such as eQuest or EnergyPlus.  I believe your
best option is an empirical model.  I suggest you review the ASHRAE 1050-RP
research, and see if the models presented there might be more applicable to
your task.  They will also be much, much easier to learn and use.  You can
either use the 1050-RP toolkit, or depending on your needs, you might find
it handier to create spreadsheet models.  You can find some good examples of
the use of those approaches in the Texas A&M web library.
 
These approaches are typically described in the context of Measurement and
Verification, but they are applicable to many other energy analyses.
 
--Bill

  _____  

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Sparks, Jason
Sent: Tuesday, March 03, 2009 7:46 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Chilled Water Loop / Bldg Modeling



I've been tasked with finding a software package that can model our chilled
water system.   We have a district plant that distributes chilled water to
many buildings on our campus.  My specific task is to model the chilled
water system of one specific building, then those results will determine if
we continue looking for a different software package, or proceed to model
the other buildings.  Pretty much they want a computer model of the
buildings chilled water system that can predict the chilled water flow
requirements for each AHU & the total building as a function of the
buildings chilled water supply temperature, outside air conditions, and air
handling unit flow rates.

 

I'm looking at eQuest & EnergyPlus (as they're the only free options I've
found so far to play with), and I'd really like some opinions/suggestions on
how to proceed.

 

Thanks

 

Jason


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