Mold Simulator – Tutorial 5
Internal or external linear thermal transmittance
In many cases, you can choose the reference point against which to calculate the linear thermal transmittance (psi). The most common example is the edge of a building:
It is possible to calculate psi compared to the internal reference point (lengths A and B) or outside (C and D). Thanks to Mold Simulator 3's new features, you can do both with a single project following these simple steps:
1- plot the section elements to identify lengths C and D:
2- change the properties of the newly created items by enabling the "double-length" option. Some new lines will appear for each item;
3- adapt to the new lines in order to identify the lengths A and B:
Turning to "Simulation" tab, you will notice two distinct values of linear thermal transmittance (psi): one refers to the internal reference point and the other one to the outside point. You will find this project in file example12.mos contained in “samples” folder.