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[EnergyPlus_Support] FanPerformance:NightVentilation: nightmanager not turning fan on? Any ideas?
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] FanPerformance:NightVentilation: nightmanager not turning fan on? Any ideas?
- From: "Jean marais" <jeannieboef@xxxxxxxxx>
- Date: Thu, 25 Aug 2011 12:35:30 -0000
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- Delivery-date: Thu, 25 Aug 2011 06:35:33 -0600
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I am trying to reduce the fan flowrate to 30% during night hours...using FanPerformance:NightVentilation
Schedule:Compact,
DOAS Supply Fan 100 Percent,
Any Number,
Through: 12/31,
For: AllDays,
Until: 05:00, 0,
Until: 22:00, 1,
Until: 24:00, 0;
Schedule:Compact,
DOAS Supply Fan 30 Percent,
Any Number,
Through: 12/31,
For: AllDays,
Until: 05:00, 1,
Until: 22:00, 0,
Until: 24:00, 1;
Fan:VariableVolume,
DOAS Supply Fan, !- Fan Name
DOAS Supply Fan 100 Percent, !- Availability Schedule Name
.7, !- Fan Efficiency
0, !- Delta Pressure {Pa}
555, !- Max Flow Rate {m3/s} 555,
Fraction, !- Min Flow Rate Input Method , FixedFlowRate
1, !- Min Flow Fraction
0, !- Min Air Flow Rate {m3/s}
1, !- Motor Efficiency
1, !- Motor in Airstream Fraction
0.35071223, !- Fan Coefficient 1
0.30850535, !- Fan Coefficient 2
-0.54137364, !- Fan Coefficient 3
0.87198823, !- Fan Coefficient 4
0, !- Fan Coefficient 5
DOAS Cooling Coil Air Outlet, !- Fan Inlet Node
DOAS Supply Fan Outlet; !- Fan Outlet Node Name
AvailabilityManagerAssignmentList,
AHU Availability Managers, !- Name
AvailabilityManager:NightCycle, !- System Availability Manager type
DOAS Availability; !- System Availability Manager name
AvailabilityManager:NightCycle,
DOAS Availability, !- Name
DOAS Supply Fan 30 Percent, !- Applicability Schedule Name
DOAS Supply Fan 100 Percent, !- Fan Schedule Name
CycleOnAny, !- Control Type
1, !- thermostat on/off tolerance {deltaC}
3600, !- Cycling run time {s}
; !- Control Zone Name
!-specifies alternative parameters for fan.
!-These alternate parameters are used when a system manager
!-(such as AvailabilityManager:NightVentilation) sets a specified flow rate for a central forced air system.
FanPerformance:NightVentilation,
DOAS Supply Fan, !- Fan Name
0.7, !- Fan Efficiency
0, !- Pressure Rise {Pa}
166.6, !- Maximum Flow Rate {m3/s} !30% of 395 = 118.5.....50% of 395 = 197.5
1, !- Motor Efficiency
1.0; !- Motor in Airstream Fraction
------------------------------------
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