EnergyPlus: changing insulation inputs does not change my simulation outputs?

asked 2021-03-01 10:24:46 -0600

devd4199
13 ●4

updated 2021-03-01 14:07:39 -0600

14145 ●83 ●24 http://bigladdersoftware.com/

So I've been changing my insulation values by increasing its thickness as well as lowering its thermal conductivity in the 'Material' section under the Surface Construction Elements list, but no matter what I change the values to, my output numbers are always the same. Am I not accounting for something? Or is it a case where the insulation values aren't actually affecting the results to a noticeable extent? The program runs without any errors, and I have tried changing the values by a magnitude of 100 but to no avail, any help is appreciated!

(The EnergyPlus version I'm using is v9.4.0)

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Do you have non-zero end uses for heating and cooling, and have you confirmed that the construction you are altering is used by one or more surfaces in the building.

David Goldwasser ( 2021-03-01 11:52:23 -0600 )edit

I have non-zero end uses, but I am unsure on how to check for whether the construction being altered is used by one or more surfaces in the building

devd4199 ( 2021-03-01 13:46:43 -0600 )edit

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Wow that was the problem, turns out the values I was changing wasn't actually referenced in the Constructions list, I changed a value that was referenced and my outputs are giving different values now, thank you so much @David and @Julien for helping me out! This was really stressing me out

devd4199 ( 2021-03-02 11:56:44 -0600 )edit

Cool. Remember to mark the answer as accepted, so the thread is flag as resolved. thanks!