Figure 2
The visual is a two-part schematic diagram arranged from left to right, showing a layered structure and its simplified equivalent, connected by arrows. On the left side, a vertical rectangular section shows a layered assembly. The outer top and bottom layers are labeled “Tempered glass”. Between them are multiple thin horizontal layers labeled “E V A”, “Cells”, and “PET”, stacked in sequence. Arrows from the left point to “Tempered glass” and “E V A”, while arrows from the right point to “Cells” and “PET”. On the right side of this section, two vertical dimension arrows are shown: a longer one labeled “13.97” spanning the full height, and a shorter one labeled “6” aligned from the top edge to the upper E V A layer. An orange rightward arrow is placed between the two sections, showing transition to the next representation. On the right side, a simplified vertical rectangular section is shown. The top and bottom regions form a single continuous layer labeled with material properties “E, G, v, rho”. The middle horizontal layer is labeled “E subscript int, G subscript int, v subscript int, rho subscript int”, representing the internal layer. A label “E V A” appears, pointing to the middle region. On the right side of this section, vertical dimension arrows are shown: a full height labeled “13.97” and a shorter height for the E V A layer labeled “h subscript int”. Another vertical dimension on the right side extending from the upper edge to the E V A layer is labeled “h subscript 1 equals h subscript 2 equals 6”. A second orange arrow to the right points toward the text “h subscript w, h subscript sigma”.Nominal cross-section and effective thickness calculation for the examined BIPV tile. Source: Authors’ own work