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Temperature 7 [°C]
5. Lamination Process & PV Module Materials
step
Preheating: Curing step
160
Cooling step-
0.9
120
80
40
0.6
0.3
0.0
0
200 400 600 800
1000
Time t[s]
An encapsulation cycle can take 10-20 min.
Pressure p [bar]
-
EPFL
1. Pre-heating step (100s to 500s) → the upper and the
lower chambers are evacuated.
Removal of the air (de-gas) to minimize the risk
of voids formation.
The softening encapsulant temperature (60-70 °C) is
reached.
2. Curing step (300s to 900s) → the module layups lie
on the heating plate directly. A
Enhances
the adhesion
between the
encapsulant and neighboring components.
The gel content (crosslink degree) at the end of the
process must be >80%.
→
3. Cooling step the encapsulated PV modules cool to
room temperature.
Open the Black Box: Understanding the Encapsulation Process of Photovoltaic Modules, 2013
GoPV Project | SUMMER SCHOOL 24
PV SYSTEMS TECHNOLOGIES AND DESIGNView entire presentation