Modelling a Low Temperature Radiant Floor

asked 2016-03-06 14:15:36 -0500

Hyphen32 gravatar image

updated 2016-03-06 16:20:27 -0500

Hello everyone,

I have been encountering a problem lately when I try to model a radiant floor in OpenStudio.

I am currently using the OpenStudio 1.10.0 plugin for SketchUp.

My building is a residential building with 6 stories plus 2 parking lots underground. After setting all thermal zones and space types, I use a HVAC system template found in BCL(by apply measure). The HVAC template I used named AEDG Office HVAC radiant DOAS.

When I run the simulation, sometimes it shows errors, sometime it doesn't. It seems very random. Does anyone know how to fix it? Errors:

Process exited with a non-zero exit code of: 1 Error report file indicates that the process did not complete successfully GetSurfaceData: There are 24 degenerate surfaces; Degenerate surfaces are those with number of sides Weather Simulation requested, but no weather file attached. GetNextEnvironment: Errors found in getting a new environment Error condition occurred. Previous Severe Errors cause termination.

Thanks for any help.

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Comments

hard to believe that your errors are random. The error message you've posted suggests two specific itesm worth checking 1. Have you defined the weather file ? 2. The message about degenerate surfaces seems incomplete. What does the full error message say ? Have you created any surfaces in an unusual way? i.e manually edited vertices?

PBrain gravatar imagePBrain ( 2016-03-07 00:42:28 -0500 )edit

Hi, I do define the weather file.And Sometimes, when it can simulate and generate the report, it still has an error for degenerate surface. Therefore, I dont think degenerate surface would affect the simulation. It is so weird.

Hyphen32 gravatar imageHyphen32 ( 2016-03-07 00:57:08 -0500 )edit

It's worth running the diagnostic script to remove the degenerate surfaces, just to confirm they are not the issue.

David

David Goldwasser gravatar imageDavid Goldwasser ( 2016-03-08 10:07:48 -0500 )edit