Re: [EnergyPlus_Support] Purchased Air Outputs and What They Mean

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Yes, the purchased air heating/cooling rates would be the correct values for a 
system which does not provide outside air through the HVAC system.

Mike


On 12 Mar 2007 at 0:18, energyplus99 wrote:

> I am using Purchased Air to determine heating/cooling requirements.  
> 
> While I know that it cannot be used to control for zone humidity and 
> temperature (indeed, zone humidity seems to vary wildly throughout the 
> run), is it none-the-less an accurate measure of heating and cooling 
> rate requirements?  Specifically, on an hour-by-hour basis, can I rely 
> on the outputs for "Purchased Air Total Cooling Rate", "Purchased Air 
> Sensible Cooling Rate" and "Purchased Air Heating Rate" to be 
> accurate?  
> 
> If this is true, can I go one step further to integrate (ie add) these 
> values over a period of time (for example a month) to get an accurate 
> count of how much energy my heatpump will need to either supply or 
> extract over that period?
> 
> 
> 
> 
> 
> 
> 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.
> 
> EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf and press the
> "search" button.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 


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





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