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Update on OpenStudio Slab Integration?

asked 2017-09-25 14:48:11 -0600

DW gravatar image

I am struggling to include any ground temperatures in my OpenStudio 2.2 model. I have tried running the BCL measures for AEDG slab but the simulation fails before producing any *.err file. I created a simple 10x10 box with default spacetypes as a single thermal zone with ideal air loads and it still fails.

I tried running the slab utility from EPLaunch for the in.idf that is produced, but that also fails - only a slab.ger file is created with thousands of severe errors of "Did not find [ ___ ] in list of objects"

I saw in the question here that the slab would be integrated into OpenStudio soon - but this was over a year ago. Any updates since then?

It looks like another user here had a similar question that was never resolved.

I see from this question that since EnergyPlus 8.2, slab modeling has been somehow incorporated. I want to accurately model a radiant slab in OpenStudio without default ground temps of 18C all year. Any updates or comments would be appreciated.

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answered 2017-09-25 17:47:05 -0600

TomB gravatar image

In answer to the 'without default ground temperature' aspect of your question, see here Sample Code for Adding Ground Temperatures.

If your simulation crashes, you might find something informative in the .stderr, stdout files. I did a quick test of the AedgK12SlaAndBasement measure (which is dated from 2014) and my simulation failed. The error message points to line 326 where OS::Runmanager is called. The measure may be failing due to the deprecation of RunManager RunManager is deprecated

release notes state: "...The API for OpenStudio Model and other core namespaces was mostly preserved during the OpenStudio 2.1.0 conversion. However, the RunManager, Analysis, Project, and AnalysisDriver namespaces were completely removed. The CLI and OSW format replace the functionality of RunManager."

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Asked: 2017-09-25 14:48:11 -0600

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Last updated: Sep 25