Re: [EnergyPlus_Support] Re: Output error

The errors occur only 3 times (in V3.0) so it's not that big of a deal.
I added outdoor relative humidity and zone air relative humidity as
report variables. The zones operate at 100% relative humidity when these
errors occur and it's cold and damp outside (T=13C-14C, RH=99%). This
means the zone is cooling off and zone RH is increasing. The RH
calculation error occurs in the Fangar model for thermal comfort (people
object) and uses zone temp, zone humidity ratio and outdoor barometric
pressure for the calculation. . And the calculation is not that far off
(~1%). Ventilation probably won't help in this situation since both
outdoors and indoors are on or near the psychrometric chart saturation
curve.

Is this a typical indoor condition in your area for uncontrolled spaces?

Program Version,EnergyPlus, Version 3.0,IDD_Version 3.0.0.010
** Warning ** Version in IDF="2.2" not the same as expected="3. 0.0"
** Warning ** GetSurfaceData: InterZone Surface Areas do not match as
expected and might not satisfy conservation of energy:
** ~~~ ** Area=2.6 in Surface=DF9CC6, Zone=37EFC2
** ~~~ ** Area=10.4 in Surface=11DB53, Zone=1AF317
************ * Testing Individual Branch Integrity
************ * All Branches passed integrity testing
************ * Testing Individual Supply Air Path Integrity
************ * All Supply Air Paths passed integrity testing
************ * Testing Individual Return Air Path Integrity
************ * All Return Air Paths passed integrity testing
************ * No node connection errors were found.
** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
** ~~~ ** Occurrence info=BUENOS AIRES - ARG IWEC Data
WMO#=875760, 05/01 00:15 - 00:18
** ~~~ ** Dry-Bulb= 18.74 Humidity Ratio= 1.378E-002 Calculated
Relative Humidity (fraction)= 1.01
** ~~~ ** Relative Humidity being reset to 1.0
** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
** ~~~ ** Occurrence info=BUENOS AIRES - ARG IWEC Data
WMO#=875760, 08/19 21:00 - 21:03
** ~~~ ** Dry-Bulb= 23.50 Humidity Ratio= 1.838E-002 Calculated
Relative Humidity (fraction)= 1.01
** ~~~ ** Relative Humidity being reset to 1.0
** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbWPb)
** ~~~ ** Occurrence info=BUENOS AIRES - ARG IWEC Data
WMO#=875760, 08/19 21:15 - 21:22
** ~~~ ** Dry-Bulb= 24.62 Humidity Ratio= 1.971E-002 Calculated
Relative Humidity (fraction)= 1.01
** ~~~ ** Relative Humidity being reset to 1.0
************ * Psychrometric Error Summary
************ * Routine - Number of errors
************ * PsyTdpFnTdbTwbPb- 0
************ * PsyRhFnTdbWPb- 3
************ * PsyTwbFnTdbWPb- 0
************ * PsyVFnTdbWPb- 0
************ * PsyWFnTdpPb- 0
************ * PsyWFnTdbH-0
************ * PsyWFnTdbTwbPb- 0
************ * PsyWFnTdbRhPb- 0
************ * PsyPsatFnTemp- 0
************ * PsyTsatFnHPb- 0
************ * PsyTsatFnPb- 0
************ * tp12c0-0
************ * tp12c1-0
************ * tp12h0-0
************ * tp12h1-0
************ * freeze-0
************ * PsyRhFnTdbRhov- 0
************ * PsyRhFnTdbRhovLBnd0 C-0
************ *
************ * ===== Final Error Summary =====
************ * The following error categories occurred. Consider
correcting or noting.
************ * InterZone Surface Areas -- mismatch
************ * ..Area mismatch errors happen when the interzone
surface in zone A is
************ * ..not the same size as it's companion in zone B.
************ *
************ * EnergyPlus Completed Successfully- - 5 Warning; 0 Severe
Errors; Elapsed Time=00hr 03min 49.98sec

maria bienciotto wrote:
>
> Hi!
>
> I tried increasing the ventilations and making infiltrations, But I
> still have the same error... I have also mixing between zones, but
> nothing helps.... Does anybody know what else can I do?
>
> Thanks
> MarÃa.
>
>
> --- El *vie 11-jul-08, Richard Raustad /<RRaustad@FSEC. UCF.EDU>/*
> escribiÃ³:
>
> De: Richard Raustad <RRaustad@FSEC. UCF.EDU>
> Asunto: Re: [EnergyPlus_ Support] Re: Output error
> Para: EnergyPlus_Support@ yahoogroups. com
> Fecha: viernes, 11 de julio de 2008, 1:58 pm
>
> I get this error during winter when RH in the zone increases to 100%.
> The reason is usually no infiltration/ ventilation.
>
> Judith Peters wrote:
> >
> > I concur. I live in Minnesota and frequently get this warning
> during
> > design day calculations.
> >
> > --- On *Fri, 7/11/08, JV Dirkes II /<jvd2pe@xxxxxxx
> <mailto:jvd2pe% 40tds.net> >/* wrote:
> >
> > From: JV Dirkes II <jvd2pe@xxxxxxx <mailto:jvd2pe% 40tds.net> >
> > Subject: [EnergyPlus_ Support] Re: Output error
> > To: EnergyPlus_Support@ yahoogroups. com
> <mailto:EnergyPlus_ Support%40yahoog roups.com>
> > Date: Friday, July 11, 2008, 11:10 AM
> >
> > Dear Maria,
> >
> > I get the same error regularly. I think it's a psychrometric
> > calculation for relative humidity that results in slightly greater
> > than 1.0 (100% relative humidity) for certain conditions. I doubt
> > that it is significant.
> >
> > --- In EnergyPlus_Support@ yahoogroups. com
> > <mailto:EnergyPlus_ Support%40yahoog roups.com> , maria bienciotto
> > <mg_bianciotto@ ...> wrote:
> > >
> > > Ã? Ã? Hi!
> > > I get this output error warning and I donÃ?Â´t know what does it
> mean.
> > I used this weather file before, and I never had this problem..
> Can you
> > help me?
> > >
> > >
> > > ** Warning ** Calculated Relative Humidity out of range
> > (PsyRhFnTdbWPb)
> > > Ã? Ã? **Ã? Ã? ~~~Ã? Ã? **Ã? Occurrence info=BUENOS AIRES - ARG IWEC
> > Data WMO#=875760, 07/01 12:15 - 12:16
> > > Ã? Ã? **Ã? Ã? ~~~Ã? Ã? **Ã? Dry-Bulb= 22.69 Humidity Ratio= 1.757E-002
> > Calculated Relative Humidity (fraction)= 1.01
> > > Ã? Ã? **Ã? Ã? ~~~Ã? Ã? ** Relative Humidity being reset to 1.0
> > >
> > > Thank you so much
> > >
> > > MGB
> > >
> > >
> > >
> > >
> > ____________ _________ _________ _________ _________ _________ _
> > > Ã?Â¡BuscÃ?Â¡ desde tu celular!
> > >
> > > Yahoo! oneSEARCH ahora estÃ?Â¡ en Claro
> > >
> > > http://ar.mobile. yahoo.com/ onesearch
> > <http://ar.mobile. yahoo.com/ onesearch
> <http://ar.mobile. yahoo.com/ onesearch>>
> > >
> >
> >
> >
>
> --
> 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
> <http://www.fsec. ucf.edu>
>
> UCF - From Promise to Prominence: Celebrating 40 Years
>
>
> ------------ --------- --------- --------- --------- --------- -
>
> Â¡BuscÃ¡ desde tu celular! Yahoo! oneSEARCH ahora estÃ¡ en Claro
> http://ar.mobile. yahoo.com/ onesearch
>

--
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