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Re: [EnergyPlus_Support] Internal shades in EnergyPlus



You might try setting Solar Diffusing = Yes for the inner material layer of your window to approximate the semitransparent shade that is always on, and then input the darkening shade as an internal shade.  See Field: Solar Diffusing under WindowMaterial:Glazing in the Input/Output Reference.

Rob Hitchcock

maryanad@xxxxxxxxx wrote:

Hello all,
I'm doing a research about energy consumption in hotel buildings. I'm
trying to define the conditions to simulate the rooms. In the process
I'm stuck with the following problem: Normally the hotel rooms have 2
drapes (internal shades). One light and semitransparent, which is
closed during the day time (always on), and the other is dark and
heavy, which is closed at night time (controlled by schedule). This is
typical shadowing solution for hotel rooms.

EnergyPlus can't define 2 internal shades for one window at the same
time. In my case, either I define the light drape or the heavy, but I
can't have both of them.

Trying to "trick" EnergyPlus defining the window with another material
layer mimicking the drape as part of the window, EnergyPlus didn't
like that and I get a severe error.
So my question is: How can I simulate this situation?

Any help will be appreciated.

Mariana




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