[EnergyPlus_Support] AFN cracks on partition sub-surfaces

["Jean marais" <jeannieboef@xxxxxxxxx>]

Dear Group,
AFN is not intended to model large openings such as holes. What is the best setup for parameters for a hole when using AFN?

Currently I'm using this for a double door sized hole:

AirflowNetwork:MultiZone:Component:DetailedOpening,
118348_Partition_1_0_0_0_0_0_Hole, !- Name - Hole
0.1, !- Air Mass Flow Coefficient When Window or Door Is Closed (kg/s @ 1Pa per m crack)
1.0, !- Air Mass Flow Exponent When Window or Door Is Closed (dimensionless)
1, !- Type of large vertical opening (LVO)
0, !- Extra crack length for LVO type 1 with multiple openable parts (m)
2, !- Number of Opening Factor Values
0, !- Opening factor #1 (dimensionless)
1.00, !- Discharge coefficient for opening factor #1 (dimensionless)
0, !- Width factor for opening factor #1 (dimensionless)
1, !- Height factor for opening factor #1 (dimensionless)
0, !- Start height factor for opening factor #1 (dimensionless)
1, !- Opening factor #2 (dimensionless)
1.00, !- Discharge coefficient for Opening factor #2 (dimensionless)
1, !- Width factor for Opening factor #2 (dimensionless)
1, !- Height factor for Opening factor #2 (dimensionless)
0, !- Start height factor for Opening factor #2 (dimensionless)
0, !- Opening factor #3 (dimensionless)
0, !- Discharge coefficient for Opening factor #3 (dimensionless)
0, !- Width factor for Opening factor #3 (dimensionless)
0, !- Height factor for Opening factor #3 (dimensionless)
0, !- Start height factor for Opening factor #3 (dimensionless)
0, !- Opening factor #4 (dimensionless)
0, !- Discharge coefficient for Opening factor #4 (dimensionless)
0, !- Width factor for Opening factor #4 (dimensionless)
0, !- Height factor for Opening factor #4 (dimensionless)
0; !- Start height factor for Opening factor #4 (dimensionless)

AirflowNetwork:MultiZone:Surface,
118348_Partition_1_0_0_0_0_0_Hole, !- Name of Associated Heat Transfer Surface
118348_Partition_1_0_0_0_0_0_Hole, !- Leakage Component Name
118348_Partition_1_0_0_0_0_0_Hole, !- External Node Name
1, !- Crack Actual Value or Window Open Factor for Ventilation (dimensionless)
Constant, !- Ventilation control mode
, !- Ventilation temp schedule
, !- Limit on multiplier for modulating venting open factor
, !- Lower value on inside/outside temperature difference for modulating the venting open factor
, !- Upper value on inside/outside temperature difference for modulating the venting open factor
, !- Lower value on inside/outside enthalpy difference for modulating the venting open factor
, !- Upper value on inside/outside enthalpy difference for modulating the venting open factor
; !- Venting Availability Schedule Name



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