Re: [EnergyPlus_Support] How to model a HVAC system with both cooling and heating function?

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

It is difficult to know what to suggest.  What type of HVAC system are you 
modeling?  What EnergyPlus HVAC and control components are you using?  Did you 
add a controller and set point manager for the hot water coil?  What type of 
thermostat controls are you using?

Mike


On 6 Dec 2007 at 7:43, adahoilam wrote:

> I am now working on a HVAC system modeling for a building in China, I 
> tried to use the existing model (with cooling function only) to modify 
> to a model can suit hot summer and cold winter seasons.
> 
> However when I added purchased hot water and set a heating coil in the 
> air system into the original model, the data of Heating: Purchased 
> heating (J) was so small.
> 
> Is there any problem for my setting? How can I fix this problem to 
> increase the heating load?
> 
> And now the cooling:Purchased cooling results also not satisfactory 
> (says 1XXX watt hourly, but I may need 3XXX watt hourly), if I want to 
> make the simulation results closer to my measurement data, which 
> parameter(s) could I change to achieve more significant results?
> 
> 
> 
> 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.pdf under the
> Documentation link 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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