Internal Shading seasonal Control

johntaylor · Posts: 52

I want to have shades that are 100% covering for part of the year and 65% covering for part of the year. It looks like I can only have shades turned on or off (no partial shading).

So is it possible with schedules to schedule 1 shade type for summer, and 1 shade type for winter?

In other words: Schedules seem to be set to adjust the amount of something, can they be used to switch between the type of something?

thanks

Andy Tindale · Posts: 1197 Location: Stroud

You can use component blocks as shades and these can have time-varying transmittance. See:

http://www.designbuilder.co.uk/programhelp/component_block.htm

for more on component blocks

Andy

johntaylor · Posts: 52

Sorry, I wasn't specific enough

I meant internal shades, blinds, etc.

Andy Tindale · Posts: 1197 Location: Stroud

This is not currently possible with EnergyPlus:

johntaylor · Posts: 52

Yes, that isn't possible in E+.

But what about using schedules to chose between two different shading objects (one with 70% transparency and another with 95% transparency)

Andy Tindale · Posts: 1197 Location: Stroud

Yes true, you can do what you suggest by using the OnIfScheduleAllows Shading Control Type in WindowShadingControl as described in the E+ manual. and using the “Name of Construction with Shading” approach to shading definition.

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