Applying Conditional Statements to Radiation Analysis

Replies to This Discussion

Permalink Reply by Abraham Yezioro on May 10, 2017 at 12:16pm

You can give a conditional statement according to temperature and/or radiation.

Also, if you are interested in extreme situations, you can analyse just the extreme hot week of the year. You can aget it from the LB_importSTAT component.

-A.

Permalink Reply by Reid Weber on May 10, 2017 at 1:49pm

Thanks or the response.

I looked at the Import Stat Component and while it provides some good information, I'd like to be able to define what an extreme temperature would be. 

To further the discussion, I've setup a conditional statement with the Solar Path Component where the direct radiation is above 630 and the temperature is above 18. I'd like to take that time where those conditions exist and plug it into the Radiation Component. 

Is there a way to extract the time period of the conditional statement, in this case form the Sunpath Chart, and plug it into an analysis period for the Radiation Analysis? 

Permalink Reply by Chris Mackey on May 10, 2017 at 4:14pm

Reid and Abraham,

We weren't planning to support a conditionalStatment input on the "SelectSkyMtx" component until the release of Ladybug[+] but you can use the following workaround with the current Ladybug to apply a kind of conditional statement to your radiation analyses:

The "SelectSkyMtx" component will only use radiation from the hours of the year (HOYs) that are input into it.  So the example above effectively builds a sky radiation dome that is just for hours of the year when the dry bulb temperature is above 15 C.

Cheers,

-Chris

Attachments:

• RadaitionConditionalStatement.gh, 395 KB

Permalink Reply by Abraham Yezioro on May 10, 2017 at 4:30pm

Chris,

We just cross each other. I was trying the following, which i think can work with both (or more) conditionals:

-A.

Permalink Reply by Chris Mackey on May 11, 2017 at 2:21pm

Ah!  Very smart, Abraham.  Yea, that effectively gives you all of the capabilities of a conditional statement and is a more complete version of what I proposed.  The only suggestion that I'd make is that you might want to connect an analysis period for the full year to the sunpath if you want the statement to apply to values over the full year.

Permalink Reply by Reid Weber on May 12, 2017 at 9:16am

That worked great Abraham, thanks for the help everyone!