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Re: [EnergyPlus_Support] Condenser loop with Glycol?

It is possible to change fluid types, but not necessary for most types of 
equipment.  In the current version of EnergyPlus, only water-source heat pumps 
and the ground loop heat exchanger honor different fluid properties.  Most 
other equipment (including chillers and towers) assume water properties.  In 
general, the primary energy impact of using glycol instead of water is a change 
in required flow rates due to different specific heats.  This adjustment can be 
made by adjusting the pump head accordingly.  (Sorry this was not answered 
sooner.)

Mike


On 7 Jul 2005, at 20:14, marieodeline wrote:

> Dear all,
> 
> I have to simulate a building which has a glycol-condenser loop. 
> This loop feeds a chiller (supply side condenser loop).
> 
> As far as the Demand side is concerned, Glycol passes through tubes 
> into a cooling tower, and so is chilled by water. 
> 
> Can I change the type of fluid in the condenser loop? How could I 
> modelise this equipment?
> 
> Thank you in advance,
> 
> Marie Odeline
> 
> 
> 
> 
> 
> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
> 
> Attachments are not allowed -- please post any files to the appropriate folder
> in the Files area of the Support Web Site.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 



========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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