Re: [EnergyPlus_Support] Control of mass flow rate of fancoil

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

The delta temperature input in the PLANT SIZING object controls the autosizing 
of chilled water coils.  Once the coil is sized, the fan coil controller 
determines the flow rate required to meet the load.  The user has no ongoing 
control over the leaving water temperature from the coil.  

You could try manually sizing the coil by entering an adjusted value for the 
max water flow rate.  For example, if the coil is autosizing the max flow rate 
to 0.2 and this results in a 10C rise across the coil, then entering a max flow 
rate of 0.4 (instead of autosize) might give you a result closer to a 5C rise 
across the coil.  

Another option to consider is using the other chilled water coil model.

Mike


On 22 Nov 2007 at 8:43, dreamerfish8146 wrote:

> Hi all!
>     I am doing a simulation with fancoil.The result shows the chilled 
> water inlet and outlet temperature and mass flow rate of fancoil.I set 
> the inlet and outlet temp to 7C and 12C.But the result says outlet temp 
> is 17C.
>     I want to know is there any way to control the chilled water outlet 
> temp to 12 and mass flow rate changes to meet zone cooling load. And 
> how to achieve.
>     Thanks for help!
> 
> 
> 
> 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





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

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/