Question-and-Answer Resource for the Building Energy Modeling Community

How to associate node numbers in the CondFD output with the corresponding surface layer?

asked 2023-07-14 02:54:40 -0500

fransmich
41 ●3

updated 2023-07-18 10:19:04 -0500

Aaron Boranian

13830 ●76 ●24 http://bigladdersoftware.com/

I got my RDD from simulation using Conduction Finite Difference solution algorithm and it is showing several output variable for example "Output:Variable,*,CondFD Phase Change State 1".

Based on the EnergyPlus Input Output Reference the number "1" is indicating the nodes in the surface.

How can I know which layer of the surface that the node representing for? the RDD files showing node from 1-18.

Thank you!

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2023-07-18 09:25:15 -0500

shorowit

10956 ●181 ●9 https://www.nrel.gov/b...

The EnergyPlus I/O Reference has the following documentation for some of the CondFD Phase Change inputs (like this one):

The nodes are numbered from outside to inside of the surface. The full listing will appear in the RDD file.

edit flag offensive delete link

Comments

Thank you for answering. However in my RDD file, it is showing 18 nodes. So, which number of node is representing that specific surface that use the Conduction Finite Difference algorithm?

fransmich ( 2023-07-18 09:30:21 -0500 )edit

Have you seen the Engineering Reference description on how the nodes are determined? See here.

shorowit ( 2023-07-18 10:26:46 -0500 )edit

Thanks for your guidence!

fransmich ( 2023-07-26 03:06:19 -0500 )edit

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops

Careers

Question Tools

1 follower

Stats

Asked: 2023-07-14 02:54:40 -0500

Seen: 28 times

Last updated: Jul 18 '23

Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The Unmet Hours and Big Ladder names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the Creative Commons Attribution Share Alike 3.0 License.

How to associate node numbers in the CondFD output with the corresponding surface layer? edit