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Shading for internal windows

asked 2017-11-18 16:15:41 -0500

Dinosaver's avatar

updated 2018-04-14 07:32:32 -0500

A building with atrium - windows adjacent to it are considered as internal, but they receive a lot of sun. So, we need a shading. But I could not find a workable combination for a shading control - I always receive a message "invalid Shading Control Name because it is not an exterior window" Does it mean that Energy Plus cannot calculate shading for internal windows? E+ 8.8

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Not exactly the answer you need, but related to this I do know that in the past light came through internal windows as diffuse light. Not sure if that has changed.

David Goldwasser's avatar David Goldwasser  ( 2017-11-18 16:33:26 -0500 )edit

The settings are "Full exterior and interior with reflections". I see the difference in "Zone Internal Window Total Transmitted Beam Solar Radiation Rate" for different windows. For me it sounds like E+ traces the light through a space correctly. Even if it not so and I want to simulate a window with permanent blinds, E+ gives me an error...

Dinosaver's avatar Dinosaver  ( 2017-11-19 03:21:57 -0500 )edit

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answered 2017-11-20 15:00:51 -0500

Dinosaver's avatar

the program does not allow shading devices on interior windows - engineering reference. Pity. Any idea how to implement EMS to switch between 2 "Window"filw based construction? I'm not familiar with this instrument and the documentation is quite confusing.

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answered 2024-02-29 19:34:28 -0500

BJ's avatar


I have added interior shading for the windows and it seems that there is no really changing in bldg performance any idea about that ?

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Asked: 2017-11-18 16:15:41 -0500

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Last updated: Nov 20 '17