Double-layered glass or triple-layered glass?

Tips & Tricks
1

w
w647×709 71.9 KB

window 3 stakla.pmx (2.4 MB)

PVC windows with two panes are the most widespread today, while PVC windows with three-layer glass find their place in an increasing number of offices and homes.
PVC windows, i.e. window frames, contain several chambers filled with air, and the greater the number of chambers and the more spacious the chambers, the better the isolation, especially if the space between them is filled with some noble gas, such as argon. As a rule, three-layer PVC windows contain seven or more chambers and make particularly good use of the advantages of filling the interspace with gas, because PVC windows with three panes have two such chambers, while PVC windows with two panes have one.
Almost 90% of buildings in Europe have double-glazed windows. Windows that have three-layer glass are used mainly in more luxurious homes, in “green” buildings, as well as in countries where the climate is colder. Due to climate change, there is a growing interest in windows with three panes for more efficient cooling of rooms.

1 Like
2

Since it doesn’t seem to be a question (request for help with PrePoMax simulation), but rather a showcase of a completed project, I moved it to Tips & Tricks. We have a Users Showcase section on our Discord server, feel free to join us there: PrePoMax & CalculiX

Regarding your model, I would just advise using hex meshes (shouldn’t be a problem with such blocky parts) and avoiding tie constraints. See this thread for some similar examples: Validation against ISO 10211-2017

Also, one of my older tutorials covers a double-pane window, but analyzed in 2D (and including hand calculations): https://www.youtube.com/watch?v=sfY5BEHUsmk

1 Like
3

Why should tie constraints be avoided?

4

It’s better to ensure continuous meshes and avoid such constraints, since they may lead to stress concentrations in mechanical analyses or heat flux peaks in thermal analyses. Or overconstraints if they overlap with other constraints (including contact and BCs).

1 Like