Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
3

Is there any way to feed illuminance calculaed by Radiance to EnergyPlus

asked 2021-11-07 20:22:14 -0600

yongqingzhao's avatar

updated 2021-11-08 07:58:03 -0600

Hi, everyone

I am investigating the energy saving of prismatic daylight redirecting fenestration (PDRF), whose fundamental is that the light is introduced into the deeper inside by PDRF, thus the daylight would be fully utilized, resulting in less artificial lighting energy and lighting heat gain. However, the daylight model in Eneryplus cannot model the redirecting effect of PDRF, so I would like to use EnergyPlus to couple with radiance. The illuminance calculated by Radiance where the sensor is placed is transferred to EnergyPlus in each timestep. I know BCVTB can implement a couple of Energyplus and Radiance, but I don't know which variable in Energyplus should receive the calculated illuminance of Radiance.

Any Suggestion?

Thank you!

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
1

answered 2021-11-09 10:36:05 -0600

The OpenStudio Radiance measure works in a similar way to what you described, running Radiance prior to EnergyPlus. However in this measure instead of passing illuminance values to EnergyPlus the measure takes the Radiance illuminance values along with the EnergyPlus lighting schedules and creates and applies a modified lighting schedules that reflect the Radiance daylighting results on the EnergyPlus usage profile. I don't know if the measure currently supports PDRF, but if not it could be updated to support that.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops

Careers

Question Tools

1 follower

Stats

Asked: 2021-11-07 20:22:14 -0600

Seen: 164 times

Last updated: Nov 09 '21