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RE: [EnergyPlus_Support] problem with idf file





Hello.

About the IDF not opening the file: AirLoopHVAC:ZoneSplitter and AirLoopHVAC:ZoneMixer have too many objects. only 50 outlet names are permited per each. Opening the idf in a text editor such as notepad, and deleting the outlet names so that you end up having 50 per AirLoopHVAC will enable you to open the IDF in the Editor. You probably will have to create a new object of each AirLoop and insert the outlets that you had to previously delete (i'm not very sure about this last part, i dont have much experience dealing with these objects).

As for the errors:

1. you're using window and/or door multipliers while having FullExterior Solar distribution. If you want to correctly model Solar Distribution using FullExterior, you shouldnt use window multipliers unless you are sure that doing so wont make much of a difference on the final results, considering the geometry of your model.

2. many of the zones where you have a thermostat dont require cooling or heating.

3. DB is probably trying to get all the output:variables possible in E+, when your modelation doesnt have them all available (it depends on the inputs).

There are some other errors about SizePlant and SizePump flow rates being zero (considering that you have so many zones without loads, it might be related). Other than this, only the FullExterior issue might compromise your results, the rest are just warnings that you should be aware of. Hope someone else with more experience takes a look at this and give you some more detailed help.

Pedro.


To: energyplus_support@xxxxxxxxxxxxxxx
From: kulandhai_psna@xxxxxxxxx
Date: Tue, 23 Mar 2010 23:25:52 -0700
Subject: [EnergyPlus_Support] problem with idf file

 
Hi all

             I have created a model in Design Builder which uses Energy plus as the simulation engine. while simulating the model i came across a number warnings.the problem is, I am not able to access the idf file from EPLaunch to correct or to made any changes to rectify it.can anyone help me to rectify this problem. Here i am attaching the EP file so that you will have a clear idea of what i am talking about. It took around 1:45 hours to run the simulation.




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