How to perform constant pressure in a zone

asked 2022-01-27 11:07:56 -0500

MHall's avatar

updated 2022-01-27 15:12:06 -0500

Hi all, I try to implement a virtual blower door test. There is an older question (54076) in unmethours, but it is not realy answered. For this test I need a constant 50 Pa pressure difference between in-/outside. Additionally I have an AirflowNetwork. I'm struggeling with the combination of an exaust fan and the AirflowNetwork. My approace is as follows:

  1. Define an exhaust fan in Fan:ZoneExhaust
  2. Use this Fan in AirflowNetwork:MultiZone:Component;ZoneExhaustFan
  3. Define a PressureController in AirflowNetwork:ZoneControl:PressureController
  4. Define a Schedule:constant for the 50 Pa
  5. add an entry in ZoneHAVC:EquipmentList and Connection

When I run the simulation I got two error massages:

* Severe * ValidateExhaustFanInput: Zone name in AirflowNetwork:MultiZone:Component:ZoneExhaustFan = EXAUSTFAN does not match the zone name in ZoneHVAC:EquipmentConnections

* Severe * ValidateExhaustFanInput: Zone name in AirflowNetwork:MultiZone:Component:ZoneExhaustFan = EXAUSTFAN does not match the zone name

* ~~~ * the surface is exposed to WEST_ZONE_WEST_WALL * Fatal * ValidateExhaustFanInput: Program terminates for preceding reason(s).

So something is not right, but I don't know what. In AirflowNetwork:MultiZone:Component:ZoneExhaustFan I can not choose a zone name. Enclosed you'll find screenshots with my definitions. I would be glad if anyone can give me a hint.

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