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[EnergyPlus_Support] Re: Roof, ceiling Construction



Sorry, Reference Crack Data should be Surface Crack Data. 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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