Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Issue with AirflowNetwork:SimulationControl in EnergyPlus

Hi everyone,

I am currently working on an EnergyPlus model containing an AirflowNetwork. This model contains multiple (AFN) zones that are served with air through a supply path by a supply fan (Fan:ConstantVolume). The air is then returned through a return path and should leave the AirLoop by going through a heatexchanger (HeatExchanger:AirToAir:SensibleAndLatent) another (return) fan (also Fan:ConstantVolume).

According to my understanding the «AirflowNetwork:SimulationControl» should be set to «MultizoneWithDistribution» (as I have a complete HVAC system). However, under this setting neither the supply fan nor the return fan will have a mass flow rate. On the other hand, when I set the SimulationControl to «MultizoneWithoutDistribution» both fans seem to operate correctly, and I can observe a mass flow rate for the fans as well as all the ZoneAirTerminals. Has anyone else experienced this issue or could provide some guidance on how to resolve this problem?

Thank you for your much appreciated help.