Hi, everyone, I’m quite new to HB and I was trying to get a thermal comfort map following Chris’s code, But there are two main questions.
A. The E+ simulation get a warning: there are non-convex srf. I have modeled all zones as cubes and not sure why it is still considered as non-convex. I have looked through several posts and it seems like this error will effect the surface temperature simulation which would be not accurate for thermal comfort. But I don’t know how to find those surfaces and rebuild the model (some posts mentioned to split the non-convex zone, anyone can give an example about how to do that?)
B.After hours not figuring out the previous problem, I was thinking about running the thermal map to see how serious the error would effect. And there’s come another problem. I set a summer day and Before sunset the result seems reasonable, however after 6 pm, the indoor temperature keeps over 38 C ( I used weather file of San Antonio). It seems like my cooling system doesn’t work. And I have no clue how to check them out.
The thermal map is a really detailed, time-consuming analysis that you usually don’t want to dive into until you have already understood/debugged your energy model on a coarse zone-by-zone level. I would really recommend watching the full youtube tutorial series on the EnergyPlus workflow before jumping to the thermal maps:
The series will also show you how to set up your geometry as multi-zone with air walls, which you will have to do in order to get the “non-convex” error to go away.
I have watched through the series before, thank you again for this amazing tutorial. After Mostapha’s advise the non-convex error has solved. I think now I need to dig deeper about the shcedule and load.
