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Re: [EnergyPlus_Support] Wrong Calculations EnergyPlus


Get into contact with Dr Ooi. He has posted on a similar topic (based in Australia). Search the forum for his details.

Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)
i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23
On 06.04.2014, at 22:54, Linda Lawrie <<mailto:linda@xxxxxxxxxxxxxx>linda@xxxxxxxxxxxxxx> wrote:

>  
I'm going to assume this is what you "deleted":
> BuildingSurface:Detailed,
> TETOZO, !- Name
> Ceiling, !- Surface Type
> Internal Ceiling, !- Construction Name
> zonaocupada, !- Zone Name
> Zone, !- Outside Boundary Condition
> ATICO, !- Outside Boundary Condition Object
> 
> that is, you deleted a similar surface in the ATICO zone.
> 
> Read about this object -- when you use Zone as the Outside Boundary
> Condition -- the program automatically creates the surface in that zone
> to affect the interzone heat transfer.
> 
> Which is also why I directed you to look at the output (in the .eio
> file) of the Output:Surfaces:List,Details report. You should have seen
> duplicate surfaces in the zones for this object.
> 
> I cannot answer your other questions at this time except to direct you
> to looking at Ground Heat Transfer (in the Auxiliary Programs document)
> and to make sure that your floor in the raised building (if I'm
> understanding what you are saying) has Outdoors as the boundary
> condition but, likely, will not be Sun Exposed. It would be exposed to
> wind.
> 
> I may have time to look in detail at your files later but equally
> someone else on the helpdesk may as well.
> 
> On 2014-04-06 14:46, PAULO REIS wrote:
> > Dear Linda,
> >
> > first of all thank you very much for your attention, I appreciate very
> > much your help and tried to follow your advice.
> >
> > I cancelled one interzone partition, it solved the area and volume
> > calculations but according to my understanding input that surface data
> > was necessary for the correct configuration. Could you please tell me
> > why the surface data cannot be included?
> >
> > My research is an Academic work that tries to demonstrate that a house
> > built in direct contact with the ground consumes less energy for
> > climatization purposes than a house that was built over pilotis
> > (elevated from the ground).
> >
> > My perplexity was to see that the Energy Plus output data indicated
> > the opposite for heating, but for cooling the results indicated the
> > necessity to use more than double of energy, wich I believe is too
> > much.
> >
> > I built 2 models with SketchUp, the difference between them is only
> > the position in relate to the ground. The one named CASATERREA.IDF is
> > on the ground, the one named CASAPILOTIS.IDF is 2,7m above the ground.
> >
> > I used the SWERA weather files of Brasilia (Brazil).
> >
> > I believe there is a mistake of input but I am not capable of
> > understand wich mistake I am doing. Since you have a very good
> > knowledge with this program maybe for you it`s very simple to just
> > take a fast look and realize what I am doing wrong, I am sending you
> > the files attached and would be very pleased if you could give me your
> > thoughts on this issue.
> >
> > The files attached are CASATERREA.IDF and CASAPILOTIS.IDF
> >
> > Thank you, will be waiting for your reply
> >
> > Best Regards,
> >
> > Paulo Reis
> >
> > On Thursday, April 3, 2014 5:04 PM, Linda Lawrie
> > <<mailto:linda@xxxxxxxxxxxxxx>linda@xxxxxxxxxxxxxx> wrote:
> >
> > Look at the Output:Surfaces:List,Details report. It's most likely
> > that you taggest something as an interzone partition and it got
> > entered twice. EnergyPlus does not make incorrect calculations on
> > those simple buildings -- look at the 1zoneuncontrolled example file,
> > for example.
> >
> > If you can't figure it out, attach it here or send it to the
> > helpdesk.
> >
> > At 09:01 AM 4/3/2014, PAULO REIS wrote:
> >
> >> Hello Guys!
> >>
> >> I'm new to using EnergyPlus, and a simple simulation I checked some
> >> inconsistencies.
> >> Looking checked the grounds that the EnergyPlus made
> >> ��some wrong calculaulations, for example, a thermal area
> >> with 10 x 10 x 2.7 m, where the volume is 270 m3 , provides the
> >> program 360 m3 . A second region with an area of ���134
> >> m2 to 234 m2 provides EnergyPlus (added to the preceding which was
> >> 100 m2 ?), But the total sum of these two areas the program provided
> >> 334 m2.
> >
> > View attachments on the web [1]
> >
> > Primary EnergyPlus support is found at:
> > <http://energyplus.helpserve.com>http://energyplus.helpserve.com [2] or send a message to
> > <mailto:energyplus-support@xxxxxxxx><mailto:energyplus-support@xxxxxxxx>energyplus-support@xxxxxxxx
> >
> > The primary EnergyPlus web site is found at:
> > <http://www.energyplus.gov>http://www.energyplus.gov [3]
> >
> > The group web site is:
> > <http://groups.yahoo.com/group/EnergyPlus_Support/>http://groups.yahoo.com/group/EnergyPlus_Support/ [4]
> >
> > Attachments are currently allowed but be mindful that not everyone
> > has a high speed connection. Limit attachments to small files.
> >
> > EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under
> > the Documentation link and press the "search" button.
> >
> > Visit Your Group [5]
> >
> > * New Members [6] 6
> >
> >
> >
> > Links:
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> > [2] <http://energyplus.helpserve.com><http://energyplus.helpserve.com>http://energyplus.helpserve.com
> > [3] <http://www.energyplus.gov><http://www.energyplus.gov>http://www.energyplus.gov
> > [4] <http://groups.yahoo.com/group/EnergyPlus_Support/><http://groups.yahoo.com/group/EnergyPlus_Support/>http://groups.yahoo.com/group/EnergyPlus_Support/
> > [5]
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> > [7]
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> 



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Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.


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