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Re: [EnergyPlus_Support] Geometry
Kevin,
There's an introduction to modeling in the GettingStarted document.
[see page 24 (30 of the pdf).] It talks about zoning, using multipliers,
etc.
FYI--the more 'objects' you put into EnergyPlus to simulate, the more
time it takes. Using a ground, middle, and top floor approach--with
a floor multiplier on the middle floor can save lots of input and
simulation
time.
There are a number of tools that will give you accurate geometry.
It depends on whether you want a 'full' interface or something to generate
input files. DesignBuilder and Hevacomp both are full interfaces and allow
you to review output as well. E2AC creates simple building cases and
allows you to quickly compare options. EP-Quick gives you a lot of
flexibility
in defining the geometry but does not include HVAC (yet). EFEN allows you
to focs on windows and fenestration--defaulting much of the building
description.
If you have CAD, there are two options--IFCtoIDF and Green Building Studio.
Also, ESP-r and ECOTECT can export EnergyPlus input files.
There is also our web interface--rectangular buildings with defaults based
on
building code and building type (EnergyPlus Example File Generator).
More info and links to all of these are available here:
http://www.eere.energy.gov/buildings/energyplus/interfaces_tools.html
Hope that helps.
Dru
"kmkburke"
<kmkburke@xxxxxxxxx> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
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Dear All,
Thank you for helping me out with the zone multiplier query. I am
interested to enquire how you define a building. However presumable
when modelling you do not enter every coordinate be it ground floor,
middle floors and top floor. Which front end to EnergyPlus is most
accurate in both defining a building's geometry, splitting it into
seperately controlled zone and defining the HVAC characteristics of
these zones?
Do you use a mixture of both i.e. define the geometry in a third party
tool and define the HVAC within EPLaunch? Is it currently possible to
translate a Revit Systems IFC file to an IDF file?
Also how reliable is the DOE2 Translator? I know it states that it
does not translate everything but I have attempted to translate one or
two files and very little appeared to translate.
I'm really eager to get to know and apply EnergyPlus as an energy
modelling tool and would appreciate any advice.
Regards,
Kevin
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