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Re: [EnergyPlus_Support] Some warnings of the input file



Thank you for your comment.
 I think I should input zero in my case.

On Mon, Oct 26, 2009 at 4:28 PM, Jackson, Alan <ajackson@xxxxxxxxxxxxxxxxx> wrote:
 

I can only comment on the first warning. You have specified a value in the ?Return Air Fraction? field but you have no return air system (PTAC) so the gains are being placed back into the space. Read through the I/O Internal Gains section for more information on the adjustment of these fractions.

 

 

Alan Jackson, LEED AP
KlingStubbins

 

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Hu,Jia
Sent: Monday, October 26, 2009 3:36 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Some warnings of the input file

 

 

Hello,

 

I used EnergyPlus to simulate a small office which a window. Two lights and a PTAC template is used. Two ref. points is set in the office to measure the illuminance and glare level.

 

I use the version 3.1 to run the simulation. There are five warnings in my input file . I have uploaded my input file, ERR text and my weatherfile  to "Files > _Problem_Submittals " And the zip file name is "some warnings".

 

Could anyone explain why there are the following two warnings or help me to fix these warnings? Thank you in advance.

 

   ** Warning ** For zone=RINKER BUILDING OFFICE return air heat gain from lights will be applied to the zone air.
   **   ~~~   **   This zone has no return air or is served by an on/off HVAC system.

 

   ** Warning ** World Coordinate System selected.  Any non-zero Building/Zone North Axes or non-zero Zone Origins are ignored.
   **   ~~~   ** These may be used in daylighting reference point coordinate calculations  but not in normal geometry inputs.

 

Thank you.

 

JH

 

 




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