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[EnergyPlus_Support] Re: Open windows in the zone



Try switch off building infiltration.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Robin Cris <robin.cris@...> wrote:
>
> Hello all
> 
> I made a one zone simulation to let my client choose if they want to replace the 
> glasses in their windows.
> 
> The simulation indeed let them see the difference between the two windows in a 
> specific day but only when the window are close all day.
> I am trying to create a Schedule to open the window but with no luck and I 
> really do not know why.
> I am trying to make it as simple as possible just to get a feel but when I 
> compare the temperatures in the csv file, there is no change.
> 
> What I done after the close windows run:
> (do i really need to do all that just to open the windows?)
> 
> I attached the idf file for extra clearance.
> 
> 1. Added Schedules
> ScheduleTypeLimits,
>     Fraction,                !- Name
>     0.0,                     !- Lower Limit Value
>     1.0,                     !- Upper Limit Value
>     CONTINUOUS;              !- Numeric Type
> 
> Schedule:Compact,
>     VentingSched1,           !- Name
>     Fraction,                !- Schedule Type Limits Name
>     Through: 12/31,          !- Field 1
>     For: AllDays,            !- Field 2
>     Until:  7:00, 1.0,       !- Field 4
>     Until: 17:00, 0.0,       !- Field 6
>     Until: 24:00, 1.0;       !- Field 8
> 2.SimpleOpening
> AirflowNetwork:MultiZone:Component:SimpleOpening,
>     DrOpen,                  !- Name
>     0.001,                   !- Air Mass Flow Coefficient When Opening is Closed 
> {kg/s-m}
>     0.667,                   !- Air Mass Flow Exponent When Opening is Closed 
> {dimensionless}
>     0.0001,                  !- Minimum Density Difference for Two-Way Flow 
> {kg/m3}
>     0.55;                    !- Discharge Coefficient {dimensionless}
> 
> 3. Surfaces (5 like this one)
> AirflowNetwork:MultiZone:Surface,
>     SubObj:0020,             !- Surface Name
>     DrOpen,                  !- Leakage Component Name
>     ,                        !- External Node Name
>     0.5;                     !- Window/Door Opening Factor, or Crack Factor 
> {dimensionless}
> 4. Zone
> AirflowNetwork:MultiZone:Zone,
>     West,                    !- Zone Name
>     Temperature,             !- Ventilation Control Mode
>     WindowVentSched,         !- Ventilation Control Zone Temperature Setpoint 
> Schedule Name
>     0.3,                     !- Minimum Venting Open Factor {dimensionless}
>     5.0,                     !- Indoor and Outdoor Temperature Difference Lower 
> Limit For Maximum Venting Open Factor {deltaC}
>     10.0,                    !- Indoor and Outdoor Temperature Difference Upper 
> Limit for Minimun Venting Open Factor {deltaC}
>     0.0,                     !- Indoor and Outdoor Enthalpy Difference Lower 
> Limit For Maximum Venting Open Factor {deltaJ/kg}
>     300000.0,                !- Indoor and Outdoor Enthalpy Difference Upper 
> Limit for Minimun Venting Open Factor {deltaJ/kg}
>     VentingSched1;           !- Venting Availability Schedule Name
> 
> and I tried it with a "AirflowNetwork:SimulationControl" and without but no 
> change.
> 
> I know the most of those things I just start to understand and I took it from 
> the "AirflowNetwork_MultiZone_SmallOffice.idf" in the example files
> 
> Thank you for any help
>




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