EnergyPlus Warning: reverse order construction

energyplus
warning
wall
construction
retag add tags

A warning is displayed in my simulation in EnergyPlus :

"GetSurfaceData: Construction DIVIDER WALL of interzone surface SURFACE 3 does not have the same materials in the reverse order as the construction DIVIDER WALL of adjacent surface SURFACE 16 * ~~~ * ...but Nominal U values are similar, diff=[0.0000] ... simulation proceeds. * ~~~ * ...if the two zones are expected to have significantly different temperatures, the proper "reverse" construction should be created ".

What does it mean? How can I solve it?

139

Jenny

asked 2018-01-06 05:37:37 -0500

4.4k

__AmirRoth__

updated 2018-05-28 13:59:29 -0500

edit flag offensive 0 remove flag close merge delete

Comments

add a comment see more comments

2 Answers

Sort by

oldest

newest

most voted

As it reads I am not sure you must change anything. Anyway if you would like to get reed of the warning you need to make a new construction , let's name it OPPOSITE DIVIDER WALL, and assign the same layers which form DIVIDER WALL just in opposite order. Now assign the the new construction to one of your surfaces 3 or 16 (but not both).

4.3k

Avi

answered 2018-01-06 10:06:03 -0500

edit flag offensive 0 remove flag delete link

Comments

Thank you, you answer has been very valuable.

Jenny (2018-01-06 15:08:20 -0500) edit

add a comment see more comments

Alternatively, if you create an interior wall construction that is symmetrical (i.e. gypsum, insulation, gypsum), I don't believe you will get this error and you don't need to create the "reverse" construction.