Assembly of the laminates

Figure 5: Solar Laminate

The solar laminates were made up as shown in figure 5. Six-inch square samples of glass, EVA and tedlar were chosen and the PV cells were placed in the centre of the laminate. A layer of fibreglass was placed behind the cell and is the same size as the cell. All the layers were cleaned with a chemical detergent to ensure full contact between the individual layers.

Eighteen such laminates were made up and individually tagged to account for all possible combinations shown in table 2.

Using heat resistance equations and the measured data from earlier conducted at University of Limerick, the following results were obtained:

Material

Thermal Resistance K/W

Glass

3.08

Solar EVA

2.55

PV Cell

0.00563

Fibreglass

0.127

Solar EVA

2.55

Tedlar

1.50

Laminate

9.813

Table 3: Thermal Resistance of the individual layers in the Tedlar laminates