[Bldg-sim] TRNSYS/EnergyPlus questions
jon hand
jon at esru.strath.ac.uk
Tue Jul 2 07:38:21 PDT 2002
Bryant Walker Smith on the Bldg-sim list asked:
> 2. Are there any building simulation programs/add-ons that incorporate
> daylighting analysis? Alternately, is there any compatability between
> programs like EnergyPlus/TRNSYS and Radiance?
For a number of years ESP-r has supported several approaches to
simultaneous thermal and lighting simulation via Radiance. Esp-r
includes a module which exports the current thermal model into
a highly structured Radiance model with full attribution and
then coerces Radiance modules to accomplish a number of
lighting/visualisation tasks (external and internal views,
daylight factors, glare assessments, etc.).
The module is designed to protect practitioners from the "black hole of
parameter tweaking" which typifies raw use of Radiance. Expert uses can
use the module to tweak the parameters and the model description if they
wish.
In "simultaneous thermal/lighting assessments" the user can use Radiance
derived fixed daylight factors within lighting control circuits or the
simulation engine can call Radiance at each time step to enquire about
the lux at various points for purposes of control. There is also an
option pre-calculates daylight coefficients for each external glazing
which can be useful for high-frequency long-period assessments.
Additional information is available at <http://www.esru.strath.ac.uk>.
Regards, Jon Hand ESRU
======================================================
You received this e-mail because you are subscribed
to the BLDG-SIM at GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE at GARD.COM
More information about the Bldg-sim
mailing list