ANALYSIS OF THE SYSTEM

The amount of the rainwater delivered to the PV panels is determined by the gas expansion volume. The expansion volume is a function of tem­perature that varies with the solar energy the gas received. Therefore, there is a relationship between the amount of rainwater delivered and solar inci­dence. The relationship can be derived from the energy conservation law.

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Подпись: Passive Cooling Technology for Photovoltaic Panels 145

Passive coolir

 

7

 

6- Water sprary pipe

7- Nozzles

8- PV module

9- Control panel

 

FIGURE 2: Schematic diagram of cross section of the solar-driven rainwater cooling system.

 

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FIGURE 3: Schematic diagram of cross section of the gas chamber.

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