[EnergyPlus_Support] Re: Variable flow chilled ceiling input water temperature too high

["wyatt.kennedy21" <wyatt.kennedy21@xxxxxxxxx>]

I have included the idf file in my uploaded files folder: http://tech.groups.yahoo.com/group/EnergyPlus_Support/files/Variable%20Flow%20Chilled%20Ceiling%20/

Keep in mind that the results from this idf will look different than the results shown from the previous posting, because this idf file is just for a test zone (although, it is the same HVAC system, construction, internal loads, etc.)

I am using the San Jose, CA TMY3 weather file.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> If you want a definitive answer, you may want to send your idf file 
> to the helpdesk along with indicating what weather file you are using.
> 
> You should narrow down the reporting of the problem so that we can 
> better be able to answer.  (on the helpdesk).
> 
> Some guidelines are posted in the troubleshooter area for "getting help".
> 
> At 06:22 PM 1/10/2012, wyatt.kennedy21 wrote:
> 
> 
> >I have created a variable flow chilled ceiling system for an office 
> >building. I used Design Builder to build the initial model. I have a 
> >setpoint manager on the chilled water supply that should control the 
> >temperature to 15 C. I am having a problem where the input 
> >temperature for the chilled ceiling is too high. Please refer to my 
> >uploaded screenshots: 
> ><http://tech.groups.yahoo.com/group/EnergyPlus_Support/files/Variable%20Flow%20Chilled%20Ceiling%20/>http://tech.groups.yahoo.com/group/EnergyPlus_Support/files/Variable%20Flow%20Chilled%20Ceiling%20/ 
> >. I have made sure to check that my internal loads are correct are 
> >too high. The "chilled water" input temperature into the chilled 
> >ceiling gets as high as 35 C. I have a few ideas as to what the 
> >problem may be involving:
> >    * If you have a variable flow chilled ceiling, does the attached 
> > chilled water loop have to be a variable flow loop or is there a 
> > way to have constant flow loop with bypass?
> >    * The chiller output temperature is matching the the input 
> > temperature to the chilled ceiling so it may have something to do 
> > with the chiller
> >
> >I didnt have this problem when the chilled ceiling was constant flow 
> >(the input temperature was always 15 C and so was the output temp of 
> >the chiller), so it has something to do with changing the chilled 
> >ceiling to variable flow. Any comments or suggestions would be 
> >greatly appreciated!
> >
> >
> >
> >Thank you,
> >
> >Wyatt
> >
> >
> >
>




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