[Equest-users] Roof monitor "Open to Below"

[Umesh Atre]

If you wouldn't mind sharing your model with the group, maybe we could
help better.
 
A starting point could be to make the monitor a part of the zone you
want to daylight so that the monitor glazing can
contribute to that zone. In your case, the monitor should be
contributing to its zone only, which is the top zone. You can verify
this by placing a 
sensor in the top zone. 
 
 


________________________________

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Smith,
Aaron Matthew
Sent: Thursday, November 19, 2009 10:42 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Roof monitor "Open to Below"



Hello E-quest group,

 

I am working on ways to implement Equest in my workflow for the purpose
of daylighting design evaluation, and I am having trouble implementing a
roof monitor. I have read the help files that describe the limitations
of Equest to perform daylighting calculations, but I have also seen that
some people have been able to implement multilevel atriums and I have
seen one application of a roof monitor. Anyways I want to give it a go
before I start programming in Daylight Factors.  

 

Attached is an example building I would like to be able to evaluate. My
evaluation goal is to put a light meter on the bottom zone under the
monitor and see what results pop out in the detailed daylighting summary
reports (LS-G, LS-J, ect.) I would like to compare Equest results to the
results of other software/calculations/measurements I am investigating,
however it seems that no light from the roof monitor is making it to the
bottom zone.

 

The bottom shell is all one zone and the top is all one zone. I have
found that it is necessary that the bottom zone have windows or else no
daylighting dialog screen shows up in the DD wizard, and that means no
light meter. At first I tried to make the top zone "open to below" and
then in the detailed edit mode moved the light meter under the monitor,
but the results do not indicate any light is making it from the roof
monitor to the bottom zone.

 

I was hoping some of you might have some suggestions to help implement
this roof monitor setup.

 

Thanks,

Aaron

 

Aaron Smith

Sr. Research Specialist

smitha11 at rpi.edu

 

Lighting Research Center

21 Union Street

Troy, NY 12180

p. 518.687.7167

f.  518.687.7120

 

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