IES luminaires in Honeybee [+]

[Shane]

Hey Sarith,

Thanks for your response. I will test this approach for a Point in time simulation.
This reply answers my original question.

After doing some more research I found that using a BSDF material in a better solution for annual simulations. I also read this valuable discussion:

Solatube BSDF Simulation

Hello, I am trying to use Honeybee[+] to run a daylight simulation using the Solatube BSDF files and wondering if anyone has experience working with these? My results seemed much lower than I expected so I tried using Honeybee[+], Honeybee, and DIVA for comparison. I am wondering if I have an incorrect setting with Honeybee because the DIVA results seem much more in line with my expectations and all three models are using the same geometry, materials, etc. Below is information on the BSDF fi…

However, after setting up the workflow, the results seemed much lower than expected. In order to increase insight, I made a comparison with the same geometry, but changing the BDSF material to a glazing material. I would expect the solar tubes to give better illumination performance compared to same-sized skylights, but the simulations indicate otherwise:

In this example workflow, the size of the solartubes/skylights is based on the Solatube XML file (width = 0.60960 m) and the roomsize is 10x10x4m. I used the standard EPW file for Amsterdam. All files are included in the zip-archive below:

BSDF_Solartube_test.zip (448.1 KB)

I can’t find any explanation for the solar tubes performing significantly worse compared to the glazing skylights of the same size, but since it is my first time working with BSDF materials I might have missed something.

Any thoughts?
Many thanks in advance

Regards,

Shane