Create Baseline Building measure error OpenStudio 2.8

asked 2019-05-08 11:41:08 -0500

updated 2019-05-08 12:21:34 -0500

Hello everyone,

I am modeling a 7 story office building for LEED v3 compliance. I am trying to use the "Create Baseline Building" measure but every time I get the following error:

"ERROR The run failed with the following severe or fatal errors: GetInternalHeatGains: Lights="OFFICE:CLOSEDOFFICE:DIRECTOR0050_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:ELEC/MECHROOM:MECANICNT5-7_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:IT_ROOM:IT1_0_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:OPENOFFICE:WORKSTATIONS0012_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:PRINTROOM:COPY0041_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:RESTROOM:RESTROOM1_0_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="OFFICE:STAIR:STAIRS1_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Lights="QUICKSERVICERESTAURANT:KITCHEN:PANTRY0037_0_LIGHTSOBJECT", Sum of Fractions > 1.0\nGetInternalHeatGains: Errors with invalid names in ElectricEquipment objects. ...These will not be read in. Other errors may occur.\nGetInternalHeatGains: Errors found in Getting Internal Gains Input, Program Stopped"

I have tried modifying the values in the lights definitions and replacing them with the "Swap Lights Definition" measure without success.

Does anyone have any idea on how I should resolve this problem?

Thanks in advance Best Arturo Reyes

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what are the radiant, visible, and return air fractions on your lighting objects in those zones?

mdahlhausen's avatar mdahlhausen  ( 2019-05-08 12:04:52 -0500 )edit

From my initial model, they were all 0. But I have tried all combinations I could find in older posts for LED lights without success.

ArturoReyes's avatar ArturoReyes  ( 2019-05-08 12:12:16 -0500 )edit

are you able to share your model? what standards space type definition to you have listed in those spaces?

mdahlhausen's avatar mdahlhausen  ( 2019-05-08 12:27:58 -0500 )edit

link text Here is the link, and the standards space types are as shown in the image: link text

ArturoReyes's avatar ArturoReyes  ( 2019-05-08 12:43:24 -0500 )edit

I've experienced this error in 2.7.0, which was because OSS uses/changes some but not all fractions so the baseline model ends up with a total > 1.0. If I remember correctly I was able to work around it by setting the Return Air Fraction to 0.

MatthewSteen's avatar MatthewSteen  ( 2019-05-08 15:11:14 -0500 )edit