I have Illuminance output in .csv format from energy plus. I want a tool to calculate DA which can take:
If the .csv file looks similar to Daysim's .ill file Honeybee can calculates the values for you without re-running the analysis.
In general, I know of no available tools that would take either of these input formats and compute DA, unfortunately. Again, you can use a spreadsheet to take the illuminance values (option two in your post) and plot them, or you could use OpenStudio to take an idf (option one above -- assuming it has all the daylighting objects properly placed) and run it through an annual simulation with Radiance, which will produce a summary csv file which does a lot of the work for you.
Many of the other tools out there (e.g., Honeybee, DIVA for Rhino, SPOT) that are geared toward climate-based daylight modeling have their own methods for reporting DA and other dynamic daylight metrics, as well. In most of these cases you will need to build a new model in the host program(s) before running the analysis and getting your desired results.
Note: this question is tagged spatial daylight autonomy, which is a totally different animal. sDA and its companion metric ASE are quite a bit more complicated to calculate than DA, or cDA and UDI. There are a few projects that are working on making these metrics easily available to users, but to my knowledge IES-ve is the only tool currently available that claims to do it.
Asked: 2014-11-07 12:32:59 -0500
Seen: 685 times
Last updated: Feb 07 '15
