[Equest-users] [Bldg-sim] Equest: Solarwall, Trombe Wall modeling

Kevin Kyte kkyte at robsonwoese.com
Wed May 28 05:28:41 PDT 2008

Yes, I have used RETScreen and understand a solar wall can be modeled within
it.  In fact, Conserval has already done this for us.  In considering
SolarWallR, all the air handlers have been sized down and when I enter in
the system inputs for capacity there isn't enough juice so I have to
incorporate solar air heating into this model.  Either that or autosize
everything to get 300 and subtract the retscreen model as an ECM.


So create a plenum for each air handler and then make all the plenum walls
Trombe-wall and just fiddle with it until it works, maybe.  I can spend a
minute on it and try.  Either way its modeling reality, right?  There should
be a lot more discussion on this.  Someone must have submitted an energy
model with solar air heating to USGBC using equest.





From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Karen Walkerman
Sent: Tuesday, May 27, 2008 4:07 PM
To: Eric Wilson
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Equest: Solarwall, Trombe Wall modeling


You could also experiment with creating a space of type "plenum" with the
dimensions and properties of a solar wall.  If I were taking the
experimentation route, this is where I would start.


On Tue, May 27, 2008 at 4:04 PM, Eric Wilson <ejwilsn1 at uiuc.edu> wrote:


I've modeled a SolarWall, aka "Solar Air Heating" or transpired air
collectors using RETScreen <http://www.retscreen.net/> .  They have a Solar
Air Heating module that is included in the RETScreen 4 download.  If you
don't mind modeling the SolarWall separate from the rest of the building,
then that should work pretty well.

Eric Wilson
Smart Energy Design Assistance Center
University of Illinois - Urbana-Champaign
(217) 244-4671
(800) 214-7954

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