European Energy Simulation

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As eQUEST does not currently support SI units, what energy simulation
programs are typically used in European countries? Are there other
programs used besides IES-VE, Ecotect and ESP-r that support SI units.
Do any of these programs combine heating and cooling load calculation
with energy simulation like Trane Trace 700? Which programs support 3-D
BIM? We have projects coming up in Spain and Italy that need to be
simulated by resident engineers.

Mark Zoeteman

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Mark,

We use Trnsys here at Transsolar, in Germany (and we're part of the
development team). It's SI-only, with heating & cooling loads and just
about any system you want via its modularity - but it's a bit of a
learning curve. No BIM support, though (yet, anyways); it has its own
building model language, with a frontend to create the files. We use it
a lot for initial studies of a building's intrinsic performance (in
addition to later stuff). That is, you can create a building with no
mechancial systems and look at just the native heating & cooling loads,
to directly study various aspects of passive performance (solar, facade,
etc...). The homepage is here: http://sel.me.wisc.edu/trnsys/

Also, check out: http://www.eere.energy.gov/buildings/tools_directory/

It's a pretty decent reference, and includes a Country breakdown, though
I'm not sure how accurate it really is (based on the fact that trnsys is
not mentioned under Germany or France, where two of the four developer
companies are located).

Hope this helps,

J. Cramer Silkworth

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Joined: 2011-09-30
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Does anyone know if ASHRAE 90.1-2007 will be adopted by USGBC for EAc1
compliance in near future to replace 2004 version with all the various
addendums (and confusion)?

Zoeteman, Mark R.'s picture
Joined: 2011-09-30
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Mark,

I think we're all wondering the same thing. I heard various rumors of
ASHRAE and USGBC aligning their review cycles somehow, so both documents
progress hand-in-hand. I also heard that 2007 will be referenced by NC
3.0, which may be soon (within a year, fingers-crossed?).

However, there are already at least 10 addenda in draft status for
90.1-2007, so don't get your hopes up. And the day this gets easy is the
day we need to find new jobs. :-)

J. Cramer Silkworth

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Joined: 2011-09-30
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European Energy SimulationDesignBuilder is being used widely in Europe and supports SI and IP units. It combines energy simulation (including natural ventilation and daylight control) with heating and cooling load calculations. It has a high quality OpenGL user interface, uses the EnergyPlus simulation engine and also has Spanish and Italian language translation and support available. It does not yet support 3-D BIM but future versions will.

More at:

www.designbuilder.co.uk

Andy Tindale

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