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[EnergyPlus_Support] 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
-- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "ooikoonbeng2004"
<ooi_kb3@...> wrote:
>
> Many thanks Mike. I added the attic zone and a gable surface.
>
> i only need the MultiZone:Surface, i think. i used the example to
> enter Reference Crack Conditions and Reference Crack Data.
>
> i got an error message that one of the zone's ceiling is an orphan
> object. Any advice to help me on my first step in AirFlow Network?
>
> kind regards,
> ooi
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte"
> <mjwitte@> wrote:
> >
> > (This is a reply to message #8583, "Re: Window AC or Unitary
> (Roof, ceiling
> > Construction". In the future, it is helpful to start a new
> message when asking
> > about a new topic.)
> >
> > The space created by a "sloping roof on one side and a
horizontal
> ceiling on
> > the other" should be modeled as a separate thermal zone. For an
> example of
> > this, see the "ATTIC ZONE" in example file
> AirflowNetwork_Simple_House.idf
> >
> > Mike
> >
> >
> >
> > On 24 Jun 2007 at 2:13, ooikoonbeng2004 wrote:
> >
> > > Hi everone,
> > >
> > > i am having difficulty to enter this roof CONSTRUCTION into
the
> idf.
> > >
> > > The roof is made of sheet metal, supported by wooden trusses,
> and is
> > > sloping. i see in some documentation with the vertices of the
> > > sloping roof but how do i enter this into the idf?
> > >
> > > Below the sloping roof is an air space and below the air space
> is
> > > the horizontal gypsum ceiling boards, 2ft x 4ft, suspended by
> > > aluminum frames. For want of a better way to enter a sloping
> roof on
> > > one side and a horizontal ceiling on the other, i have used
> ASHRAE's
> > > air object.
> > >
> > > There are CEILING and ROOF options in Surface Heat Transfer. i
> have
> > > presumed that they are one construction. Is there an example
> file
> > > with CEILING and sloping ROOF?
> > >
> > > best regards,
> > > ooi.
> >
> > ========================================================
> > Michael J. Witte, GARD Analytics, Inc.
> > EnergyPlus Testing and Support
> > EnergyPlus-Support@
> >
>
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