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[EnergyPlus_Support] Re: Confusion over Fan in AirFlow Network
Lixing,
Many thanks for how to disable the AirFlow Network.
i shall try Infiltration first. Any adice on the variables to use
for this object if the infiltration to the attic, space between the
horizontal overhang ceilings and the sloping roof, is only through
the corrugations in the roofing metal sheets as they are nailed to a
horizontal wood?
Meanwhile, is Compact HVAC:System:Unitary supported if i use the
choice as MULTIZONE WITH DISTRIBUTION or MULTIZONE WITH DISTRIBUTION
ONLY DURING FAN OPERATION in the AirflowNetwork Control field in the
AirflowNetwork Simulation object?
regards,
ooi
Meanwhile can you let me know if --- In
EnergyPlus_Support@xxxxxxxxxxxxxxx, Lixing Gu <gu@...> wrote:
>
> Ooi:
>
> It seems the input file does not specify a fan as Zone2WindACFan,
so that
> the first error message occurs (GetFanIndex: Fan not
found=Zone2WindACFan).
> In other words, Zone2WindACFan is not listed in fan index. You may
define
> the fan in the AIRFLOWNETWORK:DISTRIBUTION:COMPONENT CONSTANT
VOLUME FAN
> object. Since the fan is not listed in the fan index, the prgram
can not go
> any further.
>
> My suggestion is to disable the AirflowNetwork model first to see
whether
> you can eliminate the first error or not. The model disablement is
to use
> the choice of NO MULTIZONE OR DISTRIBUTION in the AirflowNetwork
Control
> field in the AirflowNetwork Simulation object. If you still have
problems,
> please upload the file. I will take a look.
>
> By the way, Window AC is not supported for the time being if you
use the
> choice as MULTIZONE WITH DISTRIBUTION or MULTIZONE WITH
DISTRIBUTION ONLY
> DURING FAN OPERATION in the AirflowNetwork Control field in the
> AirflowNetwork Simulation object
>
> Thanks.
>
> Lixing Gu
>
> ----- Original Message -----
> From: "ooikoonbeng2004" <ooi_kb3@...>
> To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
> Sent: Monday, July 02, 2007 2:06 AM
> Subject: [EnergyPlus_Support] Confusion over Fan in AirFlow Network
>
>
> > Confusion over Fan
> >
> >
> > Hello everyone,
> >
> > i am starting to use the AirFlow Network with only the
> > MultiZone:Surfaces referring to the SIMPLE house example.
> >
> > From the .err file, a zone needs two surfaces and i have added a
> > door to each zone. So, correct me if i am wrong, the air in the
> > AirFlow Network goes through ceiling crack/leakage and door
leakage.
> >
> > As i am only studying the thermal aspects of the building
envelop, i
> > do not use a Direct air or fan as in the Simple House example.
But i
> > have a Window AirConditioner in the second zone.
> >
> > The messages in .err file, includes:
> >
> > GetFanIndex: Fan not found=Zone2WindACFan
> > GetAirflowNetworkINput: The fan type defined in
> > AIRFLOWNETWORK:DISTRIBUTION:COMPONENT CONSTANT VOLUME FAN =
> > ZONE2WINDACFAN is not allowed etc.
> >
> > The 'Fan' in the error message can only refer to the fan in
Window
> > AC. But how do i enter the index of this fan or overcome the
errors
> > in the .err file?
> >
> > kind regards,
> > ooi
> >
> >
> >
> >
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> >
> > The group web site is:
> > 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
> >
> >
> >
> >
>
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