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[EnergyPlus_Support] Re: how to change the outdoor air flow rate?



Hi, Lee.
I have no idea about how to use external file to feed E+ hourly data 
once at the beginning of the simulation.
Would you mind show me more detail?
Thank you very much! 


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Edwin Lee" 
<leeed2001@...> wrote:
>
> I'm pretty sure EnergyPlus won't interact with software like Matlab 
during a
> simulation, however, if you know the schedule for outdoor air at 
different
> time steps (hours), you can use an external file to feed E+ hourly 
data once
> at the beginning of the simulation.
> Edwin
> 
> On Sun, Jan 18, 2009 at 4:10 PM, yunpeng.hu <yunpeng.hu@...> wrote:
> 
> >   Why do I want EnergyPlus to INTERACT with MATLAB, FORTRAN or 
others
> > program language?
> > I just want to change the flow rate by myself, becasue I need the
> > flow rate to change in certain timesteps. I want to know how the
> > temperature changes in a given air flow rate in a VAV system, but 
the
> > Energyplus always, in my opinion, give the trend of air flow rate 
to
> > meet the zone setpoint.
> > Maybe what I say has some misunderstanding, please point out!
> > I will try my best to make it clear.
> > Thanks a lot!
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx<EnergyPlus_Support%
40yahoogroups.com>,
> > D T <ellinas.1984@>
> > wrote:
> >
> > >
> > > To address your last question, whether EnergyPlus interacts with
> > any software, I know that there are software programs you can use 
to
> > draw up a building and define building geometry and dimensions. 
You
> > can then export these files to EnergyPlus. From personal 
experience,
> > I know that you can specifically use DesignBuilder (a graphic user
> > interface software package compatible w/ EnergyPlus) to draw the
> > facility and define the loads for your building and then export 
the
> > idf file to EnergyPlus. I know that there is also a plugin program
> > that lets you define building geometry as well (but I don't know 
too
> > much about it). But, to my knowledge, I do not think that 
EnergyPlus
> > is capable of interacting with programs such as MATLAB as you
> > mention. Honestly, I do not understand why you would need 
EnergyPlus
> > to interact with MATLAB.
> > > ?> -Dimos Triantafillu
> > >
> > >
> > > --- On Sat, 1/17/09, yunpeng.hu <yunpeng.hu@> wrote:
> > >
> > > From: yunpeng.hu <yunpeng.hu@>
> > > Subject: [EnergyPlus_Support] how to change the outdoor air flow
> > rate?
> > > To: EnergyPlus_Support@xxxxxxxxxxxxxxx<EnergyPlus_Support%
40yahoogroups.com>
> > > Date: Saturday, January 17, 2009, 10:50 PM
> > >
> > >
> > >
> > >
> > >
> > >
> > > Hi,all.
> > > I've defined the "Outdoor Air method" as the "sum" in the
> > sizing:zone,
> > > and set the "100% Outdoor Air in Cooling" as "yes". What's more
> > > the "Minimum / Maximum fraction of Outdoor Air Schedule" is all 
the
> > > same£¬¡°1¡±¡£
> > > But the outdoor air flow rate can't change with the Occupy
> > Schedule.
> > > I've given the "Outdoor Air Flow Per Person", of course, in
> > > the "Sizing:Zone" .
> > > Why the outdoor air flow rate can not change with the Occupy
> > Schedule?
> > >
> > > By the way, does EPlus interact with other softwrae, just like
> > Matlab
> > > or others?
> > >
> > > Thanks!
> > >
> >
> >  
> >
>



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