[Radiance-general] The Three-Phase Method for Simulating Complex Fenestration with Radiance

[Germán Molina Larrain]

If I understand your question correctly, I guess I would do the rest on a
spreadsheet or on a script.

For a spreadsheet, I would do:

rlam 'Results of venetian blind' 'Results of tinted' 'results of untinted'
> Results.txt

rlam '!dctimestep -n 8760 results/photocells_windowglow_W.vmx
xml/venetain80.xml results/windows.dmx Milwaukee.smx' '!dctimestep -n 8760
results/photocells_windowglow_C.vmx xml/tinted.xml results/clerestories.dmx
Milwaukee.smx' '!dctimestep -n 8760 results/photocells_windowglow_C.vmx
xml/untinted.xml results/clerestories.dmx Milwaukee.smx' >
results/Results.txt

And, you should get, for each timestep, the parameter you are using for
controlling the tint on your clerestories, and add that as an extra column.

Then, on excel it is possible to do:

|             A             |            B           |              C
     |                D            |          E           |
|  Venetian Results  |  Tinted Results  |  Untinted Results  |  Control
Parameter  |  Final Results  |

and put a formula to final result saying that, if(Control > theshold;
Venetian+Tinted;Venetian+Untinted).

Hope it helps... I am working on something to do this kind of things on a
single program, but it is not ready yet.

Regards,

German


2013/7/23 Leyla Sanati <leylasanati at gmail.com>

> Dear list,
>
> I am trying to use the three phase method to calculate dynamic daylight
> performance metrics for a dynamic shading device. Similar to the example 2
> in the three phase method tutorial, I have two sets of windows
> (clerestories and windows). I want to first calculate the annual
> illuminance levels on a 6 by 8 grid. Then filter the data by occupancy
> (normal working hours) and calculate the dynamic daylight metrics.
>
> Since is the shading device in my model is dynamic and has to change based
> on the incident light, I have two BSDF files for each window (e.g.
> tinted.xml and untinted.xml).
>
> I have created the vmx, dmx, xml, and smx files. But I am confused on how
> to write the dctimestep and the rest of the calculations. Bellow is what I
> have typed so far.  I'd truly appreciate it if you could help me from
> this point on.
>
> Thank you,
>
> Leyla Sanati
>
> oconv materials/room.mat objects/room.rad objects/windows.rad
> objects/clerestories.rad objects/ground.rad > model_vmx.oct
>
> rcontrib -f klems_int.cal -bn Nkbins -fo -o results/photocells_%s.vmx -b
> kbinS -m windowglow_W -b kbinS -m windowglow_C -I+ -ab 12 -ad 50000 -lw
> 2e-5 model_vmx.oct < data/photocells.pts
>
> oconv materials/room.mat objects/room.rad objects/ground.rad
> objects/sky_white1.rad > model_dmx.oct
>
> genklemsamp -vd 0 -1 0 objects/windows.rad | rcontrib -c 1000 -e MF:4 -f
> reinhart.cal -b rbin -bn Nrbins -m sky_glow -faf model_dmx.oct >
> results/windows.dmx
>
> genklemsamp -vd 0 -1 0 objects/clerestories.rad | rcontrib -c 1000 -e MF:4
> -f reinhart.cal -b rbin -bn Nrbins -m sky_glow -faf model_dmx.oct >
> results/clerestories.dmx
>
> epw2wea USA_WI_Milwaukee_TMY3.epw Milwaukee.wea
>
> gendaymtx -m 4 Milwaukee.wea > Milwaukee.smx
>
> rlam '!dctimestep -n 8760 results/photocells_windowglow_W.vmx
> xml/venetain80.xml results/windows.dmx Milwaukee.smx' '!dctimestep -n 8760
> results/photocells_windowglow_C.vmx xml/tinted.xml results/clerestories.dmx
> Milwaukee.smx' > results/venetain80_tinted.dat
>
> rlam '!dctimestep -n 8760 results/photocells_windowglow_W.vmx
> xml/venetain80.xml results/windows.dmx Milwaukee.smx' '!dctimestep -n 8760
> results/photocells_windowglow_C.vmx xml/untinted.xml
> results/clerestories.dmx Milwaukee.smx' > results/venetain80_untinted.dat
>
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