Re: [EnergyPlus_Support] Design days

[Linda Lawrie <linda@xxxxxxxxxxxxxx>]

Yes, for any sizing calculations, you need a
SizingPeriod.  -- whether design days or chosen from the weather
files.

You just don't need to select to "run" the Sizing periods if
you don't want to see those results.

If you choose the sizing calculations, then the "autosized"
values are automatically inserted for the calculation results (i.e. Run
Simulation for Sizing Periods or Run Simulation for Weather File Run
Periods)

Terminology is V3.0, V3.1.

EnergyPlus Development Team

 At 10:55 AM 5/15/2009, v s wrote:
> In "simulation
> control", i choose No for simulation run periods and yes for
> simulation for weather file.I want to use only the weather file, but
> without the design days, i get the following "severe":
>
> "CheckEnvironmentSpecifications: Sizing for Equipment/Plants has
> been requested but there are no design environments
> specified."
>
> It seems like if i choose Yes for "Do plant sizing
> calculations", it needs design days.
> If i want weather file, then how the Autosized components will work
> without the plant sizing calculations?

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