[EnergyPlus_Support] Re: question about node connection

["zhaicq98" <chaoqinz@xxxxxxxxxxxxxx>]

But I am still not sure in which objects I should put the exhaust fan 
and the process air fan...

Thank you,
Chaoqin


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, tcornell@g... wrote:
> Chaoqin,
> 
> Regen air fields, including the regen fan, are defined in the 
> desiccant dehumidifier module, while relief air fields are defined 
in 
> the heat exchanger module.
> 
> 
> 
> On 17 Jul 2003 at 17:36, zhaicq98 wrote:
> 
> > In my system, the outside air first goes through an air to air 
heat
> > exchanger where it changes sensible and latent heat with the 
building
> > relief air as well as a solid desiccant wheel before it enters 
into
> > the outside air mixer. I know this system is very similar to the
> > example file DesiccantCVRh.idf and acturally I created my input 
file
> > according to this example. The difference is that except the
> > regeneration fan there is a fan drawing the process air through 
the
> > heat exchanger and desiccant wheel and another fan drawing the
> > building relief air through the heat exchanger. 
> > 
> > My question is in which branches or objects I should put these two
> > fans. First, I did not add them to any objects, and then I got the
> > warning messages that said "node connection error, air node not 
on any
> > branch or parent object". Then add them in the AIR LOOP EQUIPMENT
> > LIST, together with the air to air heat exchanger and solid 
desiccant
> > wheel, as well as the outside air mixer. The warning messages 
remain
> > the same. 
> > 
> > Can anyone tell me where I should add this two fans?
> > 
> > Thanks,
> > Chaoqin
> > 
> > 
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> 
> Terry L. Cornell, CEM, CDSM 
> Principal
> GARD Analytics, Inc.
> 1028 Busse Highway
> Park Ridge, IL  60068-1802
> Phone: 847/698-5689   Fax:  847/698-5600
> E-Mail: tcornell@g...
> Internet: http://www.gard.com


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