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Thread: Building performance analysis with Revit

  1. #21
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    Default Re: Building performance analysis with Revit

    I'm starting to look into which product from IES my company will buy. Looking through the white paper a couple questions came to mind. We are an Arch & Engineering firm and want to use some sort of energy analysis very early on and continue throughout the project.

    1. It says plenum spaces should be created as seperate rooms. Does this mean the area above a dropped ceiling? It is my understanding that ceilings don't divide spaces when exported to gbXML. So I've been leaving the ceilings out of my test model. Will the analysis be better with ceilings and plenums taken into account? I imagine this reduces the conditioned space the VE toolkit or <VE> thinks there is.

    If I do have a dropped ceiling and create a room for a plenum do I then have to create a ceiling level and a "ceiling" made out of the floor or roof tool?

    2. When I create custom doors and windows what criteria does gbxml or IES's products use in determining what is glazing vs solid. Is it based on the transparency of the material or the subcategory?

  2. #22
    I could stop if I wanted to still.james's Avatar
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    Default Re: Building performance analysis with Revit

    i have the same problem as WS my template file keeps returning the same error

  3. #23
    AUGI Addict ws's Avatar
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    Default Re: Building performance analysis with Revit

    That's reassuring... sort of

    Maybe it's a country-specific thing?

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    All AUGI, all the time kyle.bernhardt's Avatar
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    Default Re: Building performance analysis with Revit

    My guess here is the Phasing of your Rooms, and the Project Phase parameter in the Energy Data settings for your project.

    Volume in Revit (Rooms or Spaces) are defined within a particular project Phase. There is a setting in the Revit project that defines the Phase that is used during gbXML Export (which is the basis for the IES plugin).

    Settings -> Project Information -> Energy Data -> Project Phase.

    Make sure the Phase corresponds to the Phase of your Volumes. If it doesn't you'll get the error that no Spaces are defined.

    Cheers,
    Kyle B
    Product Line Manager
    Revit Services

    Smart Questions = Smart Answers

  5. #25
    AUGI Addict ws's Avatar
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    Default Re: Building performance analysis with Revit

    Thanks Kyle, that's very useful to know and you are probably correct.

    It is quite probable that I set off in Existing Phase to create some test rooms as I have my project browser by default set up with Existing Phase levels - but the Energy Data project phase is still the default of New Construction.

    I will give it another go.

  6. #26
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    Question Re: Building performance analysis with Revit

    Such an important and timely topic seems to be lulled to sleep recently on the forum...

    Is BPA working well? Are there any new "green papers" on it? Any links I am missing to year 2009 BPA discussions?

    Of experienced users, is any of IES, Ecotect, and GBS a good tool in terms of interoperability with Revit and their "advertised" analysis capabilities?

    Thanks in advance for your responses,

    Gustavo Nogales

  7. #27
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    Cool Re: Building performance analysis with Revit

    Oops I missed AUGI's Sustainability Design Forum outside the Revit section before writing the previous post ....link: http://forums.augi.com/forumdisplay.php?f=962

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