Re: [EnergyPlus_Support] question about return air condition

[Chaoqin Zhai <chaoqinz@xxxxxxxxxxxxxx>]

Mike,

Thanks for your response. But I do not have any lights and window air flow 
specified in the input file. I still got the return air condition different 
from the indoor condition.

The input file, named as CAV_NoDegradation.idf could be found in the file 
area.


Thanks again,
Chaoqin


--On Wednesday, October 27, 2004 1:40 PM -0500 "Michael J. Witte" 
<mjwitte@xxxxxxxx> wrote:

> The return air temperature is the zone node temperature plus any "Return
> Air  Fraction" heat gain from LIGHTS and any impact from air flow windows
> (WindowGapAirflowControl, Airflow Destination=ReturnAir).  The return air
> humidity ratio is the same as the zone node humidity ratio.
>
> Mike
>
>
> On 27 Oct 2004, at 5:31, zhaicq98 wrote:
>
>>
>>
>> Hi,
>>
>> Can anyone tell me how the return air condition is calculated? As I
>> look at the output from my simulation, it is different from the
>> indoor air condition. I have a supply fan but no exhaust fan in the
>> system.
>>
>> Thanks!
>>
>>
>>
>>
>>
>>
>>
>> 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.
>>
>> 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
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