[Radiance-general] OT: modeling moving fenestration systems

[Reinhart, Christoph]

Hi Randolph:
 
Daysim allow you to simulate dynamic shading devices such as Venetian blinds (www.daysim.com). The Daysim GUI only allows you to model the blinds in either up or down states but, as Zack suggested, you can use scripting to add as many intermediate blind states as you want. For an automatically controlled system such a external louvers that are maintained in cutoff position modeling many louver slat angle states might be worthwhile. For your typical 'reference system' (manual controlled Venetian blinds), I think that an up or down state is largely sufficient since we still know relatively little about how occupants actually operate blinds. Daysim incorporates the lightswithch 2002 algorithm that aims to mimic occupant behavior based on field studies. An interesting extension of the lightswitch algorithm was proposed by Jan Wienold at the Building Simulation 2007 conference in Beijing in September. You should be able to find the paper somewhere online.
 
Christoph

________________________________

From: radiance-general-bounces at radiance-online.org on behalf of Randolph Fritz
Sent: Mon 11/12/2007 3:31 PM
To: Radiance general discussion
Subject: [Radiance-general] OT: modeling moving fenestration systems



Anyone know of commonly-used software which is used to model the 
kinematics of active fenestration systems?  Or, for that matter, any 
building lighting element which moves?

Enquiring minds want to know!

Randolph

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