Outside Reveal Depth field not working in OS:WindowProperty:FrameAndDivider

asked 2023-07-08 06:02:33 -0600

It seems that the field "Outside Reveal Depth" has no effect in OS:WindowProperty:FrameAndDivider.

I have run multiple simulations changing this value with no change in the results.

In this thread: https://unmethours.com/question/8008/... it is said that this field was added to the openstudio in order to offset the OS:SubSurface vertices to model the additional shading provided by the outside reveal surface, but when I modify this Outside Reveal Depth I can't see any difference nor in the Zone Total Window Transmitted radiation neither in the subsurface vertices coordinates in the idf file.

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@mapascual, an OpenStudioApp bug maybe? I opened a small office prototype OSM (already holding a frame & divider object), made sure it had valid outside reveal inputs and that it applied to all glazed sub surfaces. Like you, no differences in E+ results. Also opened the translated IDF: no offset in sub surface vertices vs their respective base surface vertices. No plane offset == no outside reveal in E+.

Denis Bourgeois's avatar Denis Bourgeois  ( 2023-07-09 08:08:03 -0600 )edit

The App tutorial suggests that "During translation from OpenStudio Application to EnergyPlus, OS:SubSurface vertices are offset by this amount in order to model the additional shading provided by the outside reveal surface". Either it's a bug, or I'm doing something wrong ... but the vertices aren't offset. It's possible that it's not the App, but rather OpenStudio itself. Not sure, so I can't conclude it's an App bug at this stage. Hopefully developers can chime in. Might file an issue ...

Denis Bourgeois's avatar Denis Bourgeois  ( 2023-07-09 08:13:57 -0600 )edit

For what it's worth, I manually offset sub surface vertices vs base surface vertices in the translated IDF. Now noticed expected differences in simulations results (without warnings in the .err file). In short, E+ seems to handle outside reveals just fine.

Denis Bourgeois's avatar Denis Bourgeois  ( 2023-07-09 08:29:50 -0600 )edit

Filed an issue.

Denis Bourgeois's avatar Denis Bourgeois  ( 2023-07-09 14:10:54 -0600 )edit

Thank you Denis!

mapascual's avatar mapascual  ( 2023-07-10 00:50:13 -0600 )edit