[EnergyPlus_Support] Re: Indoor humidity

["zhaicq98" <chaoqinz@xxxxxxxxxxxxxx>]

I upload the input file to the file area for further analysis. I am 
using V1.2.1. I did not simulate the latent load degradation 
phenomanon. 

Thanks!

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Chaoqin Zhai 
<chaoqinz@a...> wrote:
> Yes, I checked the temperature as well. The indoor temperature is 
around 
> 23oC, which is my setpoint. The temperature of the air coming from 
the 
> cooling coil is around 12 oC. There is sensible cooling on the 
coil, but 
> very little latent cooling.
> 
> Thanks,
> Chaoqin
> 
> --On Wednesday, October 27, 2004 2:38 PM +0000 donbshireyiii 
> <shirey@f...> wrote:
> 
> >
> > Are you sure that the DX cooling coil is operating during the time
> > when you are seeing these conditions?
> >
> > From what you describe, it seems like you are mixing about 40-50%
> > outdoor air with 50-60% return air from the zone, and this air is
> > being supplied back to the zone (with the cooling coil OFF).  Did 
you
> > check the temperatures as well?
> >
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "zhaicq98" 
<chaoqinz@a...>
> > wrote:
> >>
> >> Hi,
> >>
> >> I have a unitary system with DX cooling coil to condition a
> > one-zone
> >> building. I output the supply air condition as well as the indoor
> > and
> >> outdoor air condition and I found something strange. The supply 
air
> >> humidity ratio is around 7 g/kg dry air, but the indoor humidity
> >> ratio is around 5 g/kg. At that period the outdoor humidity ratio
> > is
> >> around 9-10 g/kg. I have some occupants inside the zone. I do not
> >> have infiltration when the HVAC is working. It seems so confusing
> > to
> >> me and I would greatly appreciate it if someone can give me some
> >> hints on it.
> >>
> >> Thanks a lot!
> >
> >
> >
> >
> >
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