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[EnergyPlus_Support] Re: Window AC or Unitary (Roof, ceiling Construction)
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.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "ooikoonbeng2004"
<kooi@...> wrote:
>
> Hi everyone,
>
> As scheduled, i have modelled B039.idf for this experiment, which i
> shall split into two stages. The first stage is to validate the
> building envelop and the heat transfer dynamics and steady states.
>
> i have 8 thermocouples on the surfaces and subsurfaces of zone 1 of
> this three zone building. i have 1 thermocouple on the other side
of
> the partition with zone 2 plus 1 in the center of the room plus 1
in
> a globe in the center of the room, for the MRT. i am also taking
RH
> readings hourly.
>
> B039.idf does not successfully run. There is a "design day" in the
> err file while i did not enter design day into the zone sizing
> class. i read from Mike's comments there could be some difference
> between v1.4 and v2 on this. The v2 i downloaded has "Batch file
not
> found" so i used the EP Launch of v1.4
>
> Any comments is most welcomed. i plan to plot the curves for the
> Coil of a National Panasonic CS-24CTH a month or two later.
>
> Much obliged,
> ooi
>
>
>
>
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "ooikoonbeng2004"
> <kooi@> wrote:
> >
> > Thank you to Shirley for the DXCoolingCoilBypassEmpirical. i
shall
> use
> > the 5 empirical quads and biquads in the WindAC file. Many
thanks.
> ooi
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "ooikoonbeng2004"
> > <kooi@> wrote:
> > >
> > > i have been asked to verify (and validate?) E+ simulation
> results by
> > > taking actual measurements with anemometer (for air flow
rates),
> > > temperature sensors, maybe including RH sensors, if available,
> in a
> > > room air conditioned, cooling only, by a York or Carrier split
> > > (evaporator inside the room and air cooled condensor outside
the
> > room)
> > > air conditioner and a ELE weather station in a tropical
climate.
> > >
> > > i plan to do this from 16th to 20th April this year. There is
a
> > Window
> > > AC example and a Unitary equipment class. Which one is more
> > > appropriate to this split type of airconditioner? Any advice
> from
> > > developers in this typer of work would be most welcomed. Many
> Thanks.
> > >
> >
>
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