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airflow network air distribution error in E+

asked 2019-02-21 07:30:39 -0500

elenc's avatar

updated 2019-02-21 17:47:13 -0500

Hi! I am getting the following warning message while modelling AirflowNetwork in EnergyPlus:

 ** Severe  ** The number of entered AirflowNetwork:Distribution:Component:Fan objects is 1
   ** Severe  ** The number of entered AirLoopHVAC objects is 0
   **   ~~~   ** Both numbers should be equal. Please check your inputs.
   **  Fatal  ** GetAirflowNetworkInput: Errors found getting inputs. Previous error(s) cause program termination.
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=2
   ..... Last severe error=The number of entered AirLoopHVAC objects is 0

I am modelling a HVAC loop with only a supply fan on the supply side and an ideal load on the demand side. The fan is modelled as a constant volume fan and connected to the airloop of the HVAC, so i don't understand when the error says that the number of AirLoopHVAC objects is 0.

Could you please help me? Here is the link

Thank you

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answered 2019-03-01 11:29:35 -0500

Your IDF has several Schedule:File objects, so I can't run it, but I do see that your AirflowNetwork:SimulationControl object has the control field set to MultizoneWithoutDistribution, which is probably not what you want. Set that to MultizoneWithDistribution and see if you get a better result or better error message. It's possible that EnergyPlus is getting confused by some other problem and not quite giving you the feedback you need.

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Thank you. changing the control field helped.

elenc's avatar elenc  ( 2019-03-06 04:45:36 -0500 )edit

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Asked: 2019-02-21 07:30:39 -0500

Seen: 159 times

Last updated: Mar 01 '19