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Re: [EnergyPlus_Support] Unexpected results when running model with Daylight and Window Shading control
You didn't say whether the 3rd case has lower/higher heating energy than
the 1st case, only that the 2nd case is lower than both of these. The
switchable glazing can help to retain heat (can reduce glazing heat
loss). It would be a trade off on solar heat gain vs glazing heat loss
You should look more closely at available report variables (*.rdd) to
further investigate.
diorthotis wrote:
>
> I get some really strange results when I run a simulation for a
> Benchmark Medium Office New V1.3_5.0 model (I downloaded it from the
> benchmark buildings web page of DOE). I created three scenarios:
>
> Reference scenario: nothing changed to the model
>
> 1st scenario: added Daylight Control for lights
>
> 2nd scenario: Daylight Control in the lights together with switchable
> glazing control.
>
> Adding Daylight Controls is supposed to reduce cooling energy and
> increase heating energy, as the lights, which are internal load, are
> dimmed when possible. In the second scenario, the required heating
> energy will be further increased and cooling energy decreased, because
> additional solar gains are rejected.
>
> Running the simulation for different weather files I discovered that
> in some cases (for example for the Amsterdam weather file) the
> required heating energy is for the 2nd scenario less than in the other
> cases. (Concerning cooling energy, there everything is OK).
>
> How can this be possible?
>
>
--
Richard A. Raustad
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