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RE: [EnergyPlus_Support] WindowShadingControl + Schedule + ONifHighZoneAirTemp

Dear Mike,

To reproduce the problem, I have modified the windowtests.idf and I have
added the schedule condition to the "WINDOWSHADINGCONTROL,DOUBLE PANE WITH
SCREEN" object.

I run the simulation with the winter and summer design days and I check the
following variables about the window controlled by the above mentioned
object:
ZN003:WALL001:WIN001:Fraction of Time Shading Device Is On [](TimeStep)
ZN003:WALL001:WIN001:Surface Ext Sunlit Fraction [](Hourly)
ZN003:WALL001:WIN001:Window Solar Absorbed:Shading Device[W](Hourly)

The control is defined to have 0 values in winter, and the winter design day
has a sky clearness of 1. Under these conditions, the shading control should
be off for the winter design day, but I'm getting non-zero values for the
above mentioned variables.

The schedule is defined as follows:

SCHEDULE:COMPACT,Sombra Solo Verano,  !- Name
    Any Number,              !- ScheduleType
    THROUGH: 5/15,          !- Complex Field #1
          FOR: AllDays,            !- Complex Field #2
          UNTIL: 24:00,0,
    THROUGH: 9/30,          !- Complex Field #1
          FOR: AllDays,            !- Complex Field #2
          UNTIL: 07:00,0,
          UNTIL: 22:00,1,
          UNTIL: 24:00,0,
    THROUGH: 12/31,          !- Complex Field #1
          FOR: AllDays,            !- Complex Field #2
          UNTIL: 24:00,0;               !- Complex Field #4

Thanks for your attention,

Miguel Angel

-----Mensaje original-----
De: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] En nombre de Michael J. Witte
Enviado el: martes, 31 de mayo de 2005 17:55
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Asunto: Re: [EnergyPlus_Support] WindowShadingControl + Schedule +
ONifHighZoneAirTemp

With this input, both conditions must be true for the shade to be deployed.

The schedule must be >0.0 and the zone air temperature must be >23.8 (the 
setpoint value).  Is the shade active at times when the schedule is zero?

Mike


On 27 May 2005, at 9:54, Miguel Angel Pascual Buisan wrote:

> Hello,
> 
> 
> 
> 
> 
> I am running a simulation with a "WindowShadingControl" that should be
> controlled by "Schedule" AND "OnIfHighZoneAirTemp".  
> 
> 
> 
> 
> 
> The problem is that the control is only responding to the
> "OnIfHighZoneAirTemp" condition. Any suggestion about this?
> 
> 
> 
> 
> 
> 
> 
> WINDOWSHADINGCONTROL, CONTROL ON INCIDENT SOLAR, !- Name of Shading
Control
> 
>    ExteriorShade, !- Shading Type
> 
>    sun guard con persiana exterior, !- Name of construction with shading
> device
> 
>    OnIfHighZoneAirTemp, !- Shading Control Type
> 
>    Sombra Solo Verano, !- Schedule name
> 
>    23.8, !- Setpoint 
> 
>    YES, !- Shading Control Is Scheduled
> 
>    NO, !- Glare Control Is Active
> 
>    , !- Material Name of Shading Device
> 
>    , !- Type of Slat Angle Control for Blinds
> 
>    ; !- Slat Angle Schedule
> 
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
> 
> Attachments are not allowed -- please post any files to the appropriate
folder
> in the Files area of the Support Web Site.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 
> 



========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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