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Re: [EnergyPlus_Support] Re: Ai r Treatment Unit – V1



The coil's water flow rate will be driven by the difference between the 
entering air temp, entering water temp, and the size (capacity or UA) of 
the coil..If you have already tried this, how about changing the coil's 
discharge air temperature set point? or the entering water temperature 
set point?

m_neves32 wrote:
>  
>
> Thank You for ansering Richard
>
> I´ve tied to the autosize, and manualy change the size of the coil, 
> increase the size of the supply plant and input the flow in the pumps 
> without any change. Could it be from the fact the I have a commun pipe 
> simulation with a pump on both, demand and supply sides plus a Bypass 
> pipe ?
>
> Thank you very mutch for your time. Hope I can help in the Future.
>
> EMN
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx 
> <mailto:EnergyPlus_Support%40yahoogroups.com>, Richard Raustad 
> <RRaustad@...> wrote:
> >
> > 1) decrease the size of the coil.
> > 2) Not sure of this one, check the documentation and example files
> >
> > m_neves32 wrote:
> > >
> > >
> > > Hello
> > >
> > > I´am currently working on a Air treatment unit equipped with a water
> > > heating and cooling coil, heat exchanger and it has to work with 100%
> > > of outside air. I´am having some difficulty namely in :
> > > 1 –Controlling the temperature difference in the coils ( 10ºc for
> > > heating and cooling), witch means that the water flow is smaller,
> > > because the temperature difference is bigger, and consequently the
> > > energy consumption of the pumps is not realistic;
> > > 2 – I don't know how to make the system work in the free-cooling mode.
> > >
> > > Does anyone know how to do this?
> > > Thanks
> > >
> > > EMN
> > >
> > >
> >
>
> 

-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL  32922-5703
Phone:   (321) 638-1454
Fax:     (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years



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