Re: [EnergyPlus_Support] Intermediate Building Layer Temperatures

["O. Tugrul Karaguzel" <tugrulkaraguzel@xxxxxxxxx>]

Hi Mrs. Lawrie,

I've just received your reply from the Helpdesk system. I solved crash problem when I removed the material defined as Material:InfraredTransparent.

Now I can run simulations and get CondFD Nodal Temperature values for every building surface (including glazing materials). The thing is EnergyPlus generated results for a number of nodes (which is different for each surface). For example I have a partition wall with  3 nodes reported, or a floor slab with 11 nodes reported.

I'd like to learn how E+ defines the number of nodes to be reported? Are the nodes representing mid-layer or layer-surface temperatures?

Thanks so much.

Regards.

Omer T. Karaguzel

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From: O. Tugrul Karaguzel <tugrulkaraguzel@xxxxxxxxx>
To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Monday, September 26, 2011 3:00 PM
Subject: [EnergyPlus_Support] Intermediate Building Layer Temperatures

 

Hi All,

My question is about EnergyPlus  output variables:

Is there are method to get surface temperature values of intermediate building layers that make up the whole envelope construction assembly ?

Normally, inside and outside temperature of building surfaces are reported. I tried to use Conduction Finite Difference (CondFD) as a surface heat balance algorithm instead of the usual CTF (Conduction Transfer Function).

According to E+ input/output reference, one of the CondFD outputs is "CondFD Nodal Temperature [C]" for each node in the surface simulated. However, E+ crashes with such input. I already send a ticket to E+ support system.

However, there may be another way of getting such a variable from E+ which I may be ignoring now.

Thanks for the replies.

Best.

Omer T. Karaguzel

PhD Candidate Carnegie Mellon University

Center for Building Performance and Diagnostics

Pittsburgh, PA, U.S.A.

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