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Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Hi

I have set up a EMS that switches between several Construction:ComplexFenestrationState, in order to model dynamic solar shading (drawing inspiration from the example file ThermochromicWindow.idf). To test the validity of the EMS approach I have created a simple comparison:

idf 1) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by Construction Name.

idf 2) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by a EMS that overides the existing constructions.

(all the relevant objects are at the bottom of the files)

This should in my mind produce the excact same results, however there are some big differences in the output. Does anybody have an idea as to why?

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Hi

I have set up a EMS that switches between several Construction:ComplexFenestrationState, in order to model dynamic solar shading (drawing inspiration from the example file ThermochromicWindow.idf). To test the validity of the EMS approach I have created a simple comparison:

idf 1) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by Construction Name.

idf 2) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by a EMS that overides the existing constructions.

idf files

(all the relevant objects are at the bottom of the files)

This should in my mind produce the excact same results, however there are some big differences in the output. Does anybody have an idea as to ~~why?~~ why?

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Hi

I have set up a EMS that switches between several Construction:ComplexFenestrationState, in order to model dynamic solar shading (drawing inspiration from the example file ThermochromicWindow.idf). To test the validity of the EMS approach I have created a simple comparison:

idf 1) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by Construction Name.

idf 2) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by a EMS that overides the existing constructions.

idf files

(all the relevant objects are at the bottom of the files)

This should in my mind produce the excact same results, however there are some big differences in the output. Does anybody have an idea as to why?

Cheers

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Hi

I have set up a EMS that switches between several Construction:ComplexFenestrationState, in order to model dynamic solar shading (drawing inspiration from the example file ThermochromicWindow.idf). To test the validity of the EMS approach I have created a simple comparison:

idf 1) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by Construction Name.

idf 2) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by a EMS that overides the existing constructions.

idf files

(all the relevant objects are at the bottom of the files)

This should in my mind produce the excact same results, however there are some big differences in the output. Does anybody have an idea as to why?

Cheers

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Hi

I have set up a EMS that switches between several Construction:ComplexFenestrationState, in order to model dynamic solar shading (drawing inspiration from the example file ThermochromicWindow.idf). To test the validity of the EMS approach I have created a simple comparison:

idf 1) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by Construction Name.

idf 2) Assigns ONE Construction:ComplexFenestrationState to all windows in the model by a EMS that overides the existing constructions.

idf files

(all the relevant objects are at the bottom of the files)

This should in my mind produce the excact same results, however there are some big differences in the output. Does anybody have an idea as to why?

Cheers

+++++ Update +++++

@vidanovic thank you for your reply - tried running the same .idf files only changing the window construction Construction:ComplexFenestrationState named "CFS_Window" with the simple window construction. This yielded exactly the same result for the two files (named "..._simpleWindowConstruction"):

idf files

Also in the same link two files called "..._newCFSconstruction" which employs a different Construction:ComplexFenestrationState than the original files. They also result in discrepancies.

This makes me think that the problem lies in using EMS with Construction:ComplexFenestrationState

@Aaron Boranian thank you for your reply. I have used the same approach for EMS as seen in the example file "EMSThermochromicWindow.idf". As stated in the input/output reference it should be possible to use EMS and Construction:ComplexFenestrationState together:

image description

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Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name

Discrepancies when using EMS to assign Construction:ComplexFenestrationState compared to assigning by construction name