SF Residential prototype models - heated basement errors

asked 2022-08-09 15:19:08 -0600

ericmartinpe's avatar

updated 2022-08-09 17:35:33 -0600

Aaron Boranian's avatar

I'm trying to simulate the single-family residential prototypes, and I get the error below for all of the heated basement models. Here's the CZ7 IDF + EPW for reference.

I've tried multiple code years, IECC and ASHRAE, and get the same error for all of the heated basement prototypes. Does anyone know how to simulate these?

   ** Severe  ** Output:PreprocessorMessage="GroundTempCalc - Basement" has the following Severe conditions:
   **   ~~~   ** EPlusOutput: Calculations have resulted in invalid results (NAN). (Could be divide by zero.
   **   ~~~   ** Overflows. Other causes.) Check Input Parameters.  Hint: Start from defaults for each object
   **   ~~~   ** and work forward.

   ** Severe  ** Output:PreprocessorMessage="GroundTempCalc - Basement" has the following Fatal condition:
   **   ~~~   ** Program terminates due to preceding condition(s).

   **  Fatal  ** Preprocessor condition(s) cause termination.
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Comments

Might be related to this? https://github.com/NREL/EnergyPlus/is...

shorowit's avatar shorowit  ( 2022-08-11 13:37:06 -0600 )edit

Might be, but I tried the suggested workaround (below) and they still don't simulate successfully. I'm also surprised that this was a bug in 9.4, but was not corrected in 9.5, 9.6, or 22.1. I updated the IDF to each of these and got the same errors.

Copy the v9.3 basement.exe file over the v9.x basement.exe.
ericmartinpe's avatar ericmartinpe  ( 2022-08-11 14:08:23 -0600 )edit

Did you ever figure out a solution to this? I am getting the same severe errors. I have tried running multiple code years as well as in Windows, Mac, and Ubuntu environments and none of them are working.

crossm2's avatar crossm2  ( 2023-11-11 12:47:17 -0600 )edit

The workaround Scott mentioned above has worked for me, sometimes. I tried it on 3 different computers; it has worked on 2 out of the 3 (all Windows). The workaround is:

Copy the v9.3 basement.exe file over basement.exe in the version you're simulating in - found in EnergyPlusVX-X-X\PreProcess\GrndTempCalc.

Edit: looks like this might've been fixed in 22.1, but I haven't confirmed.

ericmartinpe's avatar ericmartinpe  ( 2023-11-13 09:44:04 -0600 )edit

Ah thank you yes I tried that and it is working. I am still getting some errors and warnings but the overall results look like they make sense

crossm2's avatar crossm2  ( 2023-11-13 10:01:51 -0600 )edit
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