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How can I divide a fenestration surface into smaller parts?

asked 2019-07-03 23:20:33 -0500

aysuek's avatar

I am trying to model a window in Energy Plus with an opaque part that I want to set as a construction and link with solar temperature in EMS. How can I subdivide a fenestration surface in EP?


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answered 2019-07-09 07:16:16 -0500

In EnergyPlus you would create two or more objects (such as Fenestration:Detailed) that each portion has vertex coordinates that correspond to the smaller parts that you are using. For example, if the original window goes from 1 m to 2 m in height you might need to define a smaller fenestration object using vertices that go from 1 m to 1.5 m and the second to go from 1.5 m to 2 m.

If you are using also using a WindowProperty:FrameAndDivider object it is trickier since those are attached to each fenestration object defined and you might need to estimate the impact if you are using multiple fenestration objects.

Depending on the version of EnergyPlus that you are using, you may be able to visualize it using Euclid.

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answered 2019-07-04 20:59:17 -0500

If you happen to be using OpenStudio to make your model you can use this measure that splits existing rectangular windows into horizontal bands. It could be expanded to break into grid of surfaces vs. stacked bands.

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Hey @David I am not using Open Studio, I`ve built the model in EP which is only one thermal zone with 2 identical windows. Any chance I can view my drawing file somewhere? Maybe it helps visualising and understanding the geometries. Thanks!

aysuek's avatar aysuek  ( 2019-07-04 21:45:27 -0500 )edit

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Asked: 2019-07-03 23:20:33 -0500

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Last updated: Jul 09 '19