[Equest-users] Thermal Storage

[Ana N.]

Frank,
 
You can model Thermal storage in DD mode. First, you need to create your charge schedule (type on/off). In Water-Side HVAC screen, right click the top of the side menu and select “thermal storage”. You will be asked to select charged and discharged loops. Check your operating temperatures also.  I would create custom curves for the chiller (check out the article “Tools and techniques to calibrate electric chiller component models” which is available online). To do so, you need to work with a chiller vendor to generate a desent set of performance data over the range of operating temperatures. You also need to specify your chiller capacity and EIR at rated (design) conditions. It really depens on your sequence of operation. 
 
Anybody has a better idea?  What about creating two sets of chillers, one for charging and the other one for discharging mode?
 
Good luck.
 
Ana
 

 
 

From: frankp.bce at sbcglobal.net
To: equest-users at lists.onebuilding.org
Date: Fri, 28 May 2010 11:27:03 -0400
Subject: [Equest-users] Thermal Storage







I know that eQUEST can model ice storage, but I can’t figure out how!
 
Please help.
 
Thanks
 
Frank Portner, CxA, LEED-AP
Certified Building Commissioning Professional
 
BC&E Engineering
204 S. Ludlow St. Suite 402
Dayton, OH 45402
Office 937.331.9204
Fax 937.331.9205
 

  		 	   		  
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