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AW: Re: [EnergyPlus_Support] Interior Blind - BlockBeamSolar
Rob,
thank you for your response.
The radiation on the window is several times over the setpoint of 180 W/m². I printed, also,
out the output "shading device is on". And it is on (1).
I calculated the same example with an exterior blind. And it works well. But not yet for
the interior blind. Below I listed the material properties for the interior blind.
Perhaps you can have a look on this.
Thanks, Arno
MATERIAL:WINDOWBLIND,
Typ11, !- Name
HORIZONTAL, !- Slat orientation
0.035, !- Slat width {m}
0.04000, !- Slat separation {m}
0.001, !- Slat thickness {m}
45.0, !- Slat angle {deg}
221.0, !- Slat conductivity {W/m-K}
0.1, !- Slat beam solar transmittance
0.4, !- Slat beam solar reflectance, front side
0.4, !- Slat beam solar reflectance, back side
0.1, !- Slat diffuse solar transmittance
0.4, !- Slat diffuse solar reflectance, front side
0.4, !- Slat diffuse solar reflectance, back side
0.1, !- Slat beam visible transmittance
0.4, !- Slat beam visible reflectance, front side
0.4, !- Slat beam visible reflectance, back side
0.1, !- Slat diffuse visible transmittance
0.4, !- Slat diffuse visible reflectance, front side
0.4, !- Slat diffuse visible reflectance, back side
0.0, !- Slat IR (thermal) hemispherical transmittance
0.3, !- Slat IR (thermal) hemispherical emissivity, front side
0.3, !- Slat IR (thermal) hemispherical emissivity, back side
0.100, !- Blind-to-glass distance {m}
1.0, !- Blind top opening multiplier
1.0, !- Blind bottom opening multiplier
1.0, !- Blind left-side opening multiplier
1.0, !- Blind right-side opening multiplier
0, !- Minimum Slat Angle {deg}
180; !- Maximum Slat Angle {deg}
--- Originalnachricht ---
> Arno,
> There are several factors interacting under your desired control
> strategy. You are deploying your interior blind only when beam
> +
> diffuse solar incident on the window is > 180 W/m2. You should
> output
> this variable so that you can assure that your blind is being
> properly
> deployed. Also, the BlockBeamSolar control uses the input data
> in the
> Material:WindowBlind object, which you have not included in
> your email
> message. The Material:WindowBlind construction must be complete
> and
> accurate enough for EnergyPlus to determine the appropriate
> slat angle
> to block beam when the blind is deployed.
> Rob Hitchcock
> =========
> Arno Dentel wrote:
> > Dear Users.
> >
> > I simulate a simple room with an interior blind. The control type of the
> > slat angles is: BlockBeamSolar.
> > But in the output (FENSTER_1:Window Blind Slat Angle [deg](TimeStep)) is
> > always 0.
> > At the end of my mail you can find the specifications of the window
> > control
> > object out of my idf file.
> > Has any body an idea?
> >
> > Best Regards,
> > Arno
> >
> > !- =========== ALL OBJECTS IN CLASS: SURFACE:HEATTRANSFER:SUB
> > ===========
> >
> > Surface:HeatTransfer:Sub,
> > Fenster_1, !- User Supplied Surface Name
> > WINDOW, !- Surface Type
> > 2003, !- Construction Name of the Surface
> > Wand_2, !- Base Surface Name
> > , !- OutsideFaceEnvironment Object
> > 0.0, !- View Factor to Ground
> > ysun_1_11, !- Name of shading control
> > , !- WindowFrameAndDivider Name
> > 1, !- Multiplier
> > 4, !- Number of Surface Vertex Groups -- Number of
> > (X,Y,Z) groups in this surface
> > 0.32260, !- Vertex 1 X-coordinate {m}
> > 0.00000, !- Vertex 1 Y-coordinate {m}
> > 0.95517, !- Vertex 1 Z-coordinate {m}
> > 3.62740, !- Vertex 2 X-coordinate {m}
> > 0.00000, !- Vertex 2 Y-coordinate {m}
> > 0.95517, !- Vertex 2 Z-coordinate {m}
> > 3.62740, !- Vertex 3 X-coordinate {m}
> > 0.00000, !- Vertex 3 Y-coordinate {m}
> > 2.54483, !- Vertex 3 Z-coordinate {m}
> > 0.32260, !- Vertex 4 X-coordinate {m}
> > 0.00000, !- Vertex 4 Y-coordinate {m}
> > 2.54483; !- Vertex 4 Z-coordinate {m}
> >
> > !- =========== ALL OBJECTS IN CLASS: WINDOWSHADINGCONTROL ===========
> >
> > WindowShadingControl,
> > ysun_1_11, !- User Supplied Shading Control Name
> > InteriorBlind, !- Shading Type
> > 2003_Shaded11, !- Name of construction with shading
> > OnIfHighSolarOnWindow, !- Shading Control Type
> > , !- Schedule Name
> > 180.00, !- SetPoint {W/m2, W or deg C}
> > No, !- Shading Control Is Scheduled
> > No, !- Glare Control Is Active
> > , !- Material Name of Shading Device
> > BlockBeamSolar, !- Type of Slat Angle Control for Blinds
> > ; !- Slat Angle Schedule Name
> >
> > ______________________________________________________
> >
> > Arno Dentel - MEng, Dipl.-Ing. (FH)
> > Georg-Simon-Ohm Fachhochschule Nürnberg
> > Institut für Energie und Gebäude - ieg
> > Keßlerplatz 12
> > 90489 Nürnberg
> >
> > Tel: +49 - 911 - 5880 -1846
> > Fax: +49 - 911 - 5880 -5846
> >
> > E-Mail: arno.dentel@xxxxxxxxxxxxxxx (mailto:arno.dentel%40fh-nuernberg.de) <mailto:arno.dentel%40fh-nuernberg.de>
> > web: www.ieg.fh-nuernberg.de <http://www.ieg.fh-nuernberg.de/ (http://www.ieg.fh-nuernberg.de/)
> > <http://www.ieg.fh-nuernberg.de/ (http://www.ieg.fh-nuernberg.de/)>>
> >
> > [Non-text portions of this message have been removed]
> >
> >
> --
> Robert J. Hitchcock, Ph.D.
> Lawrence Berkeley National Laboratory
> 1 Cyclotron Road, Mailstop 90-3111
> Berkeley, CA 94720
> RJHitchcock@xxxxxxx (mailto:RJHitchcock%40lbl.gov)
> 530.295.9433 (telecommute office)
> [Non-text portions of this message have been removed]
>
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