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Hello everyone,

I am trying to do sizing runs using Open Studio 2.5. I exported the project file from CBECC-Com and manually autosized the model. The weather file chosen is San Francisco (SFO). When the software is running the calculations, it uses SFO weather file for sizing but uses another weather file for calculating Detailed daylighting factors. Can I know why is it choosing another file other than the one chosen? Will, that impact the sizing? How can I change it? Thanks

C:\fakepath\weather.JPG

Hello everyone,

I am trying to do sizing runs using Open Studio 2.5. I exported the project file from CBECC-Com and manually autosized the model. The weather file chosen is San Francisco (SFO). When the software is running the calculations, it uses SFO weather file for sizing but uses another weather file for calculating Detailed daylighting factors. Can I know why is it choosing another file other than the one chosen? Will, that impact the sizing? How can I change it? Thanks

C:\fakepath\weather.JPG

Hello everyone,

I am trying to do sizing runs using Open Studio 2.5. I exported the project file from CBECC-Com and manually autosized the model. The weather file chosen is San Francisco (SFO). When the software is running the calculations, it uses SFO weather file for sizing but uses another weather file for calculating Detailed daylighting factors. Can I know why is it choosing another file other than the one chosen? Will, that impact the sizing? How can I change it?

C:\fakepath\weather.JPG

I am also trying to compare the HVAC sizing between 2 glass types and I see no difference in the HVAC system capacities, (especially plant side components) between the glass types. I did check the calculations under simulation settings-C:\fakepath\Sim control.JPG, still, I see no difference. I have attached the OS models.

Thanks

Hello everyone,

I am trying to do sizing runs using Open Studio 2.5. I exported the project file from CBECC-Com and manually autosized the model. The weather file chosen is San Francisco (SFO). When the software is running the calculations, it uses SFO weather file for sizing but uses another weather file for calculating Detailed daylighting factors. Can I know why is it choosing another file other than the one chosen? Will, that impact the sizing? How can I change it?

C:\fakepath\weather.JPG

I am also trying to compare the HVAC sizing between 2 glass types and I see no difference in the HVAC system capacities, (especially plant side components) between the glass types. I did check the calculations under simulation settings-C:\fakepath\Sim control.JPG, still, settings

Still, I see no difference. I have attached the OS models.

Thanks

Hello everyone,

I am trying to do sizing runs using Open Studio 2.5. I exported the project file from CBECC-Com and manually autosized the model. The weather file chosen is San Francisco (SFO). When the software is running the calculations, it uses SFO weather file for sizing but uses another weather file for calculating Detailed daylighting factors. Can I know why is it choosing another file other than the one chosen? Will, that impact the sizing? How can I change it?

I am also trying to compare the HVAC sizing between 2 glass types and I see no difference in the HVAC system capacities, (especially plant side components) between the glass types. I did check the calculations under simulation settings

Still, I see no difference. I have attached the OS models.

Thanks