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