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[EnergyPlus_Support] Re: Infiltration object yields no load when using "ACH"
Got it! (My hindsight often seems to be more clear than my foresight;
I very much appreciate the help from all of those in the Forum.)
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad
<RRaustad@...> wrote:
>
> Yes, the coefficients affect the amount of infiltration. Reviewing the
> documentation in the IO Ref is see that:
>
> Infiltration = Idesign * Fsch * (A + B*ABS(DeltaT) +C*WindSpeed +
> D*WindSpeed ^2
>
> In your example:
> Idesign = 1 ACH
> Fsch = 1
> A=0
> B=0
> C=0
> D=0
>
> Infiltration = 1 * 1 * 0 = 0
>
> JV Dirkes II wrote:
> >
> > Dear Linda,
> >
> > Does that mean that my 1 ACH is affected by the coefficients? THAT
> > isn't clear at all in the documentation. (But I can work with it....)
> >
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> > <mailto:EnergyPlus_Support%40yahoogroups.com>, Linda Lawrie
> > <linda@> wrote:
> > >
> > > Of course, if you have all the coefficients at zero as you have, you
> > > will always get 0.0 as the answer.
> > >
> > > Sorry, my eyes played tricks on me and I thought your constant term
> > was 1.
> > >
> > > We probably should put in a warning for that.
> > >
> > > Linda
> > >
> > > At 02:18 PM 5/26/2008, JV Dirkes II wrote:
> > > >Dear E+ Forum,
> > > >
> > > >I've defined my Infiltration with the "ACH" calculation method
option
> > > >as follows:
> > > >
> > > >INFILTRATION,
> > > > Infiltrn_ParkingLobbies, !- Name
> > > > ParkingLobbies, !- Zone Name
> > > > SchCpct_AlwaysOn, !- SCHEDULE Name
> > > > ACH, !- Design Volume Flow Rate
> > calculation method
> > > > , !- Design Volume Flow Rate {m3/s}
> > > > , !- Flow per Zone Area {m3/s-m2}
> > > > , !- Flow per Exterior Surface Area
> > {m3/s-m2}
> > > > 1, !- Air Changes Per Hour
> > > > 0, !- Constant Term Coefficient
> > > > 0, !- Temperature Term Coefficient
> > > > 0, !- Velocity Term Coefficient
> > > > ; !- Velocity Squared Term Coefficient
> > > >
> > > >Reports on the Air Change Rate, Total Heat Loss and Total Heat Gain
> > > >show zero for all timesteps. Any ideas about what's wrong? Thanks.
> > > >
> > > >
> > > >
> > > >
> > > >------------------------------------
> > > >
> > > >The primary EnergyPlus web site is found at:
> > > >http://www.energyplus.gov <http://www.energyplus.gov>
> > > >
> > > >The group web site is:
> > > >http://groups.yahoo.com/group/EnergyPlus_Support/
> > <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.
> > > >
> > > >EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf
> > > >under the Documentation link and press the "search" button.
> > > >Yahoo! Groups Links
> > > >
> > > >
> > > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
>
> --
> 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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