April 17, 2024

New research shows impact of dust on PV module temperature, performance

International researchers have investigated the impact of dust accumulation on the performance of PV systems in two climate regions of Pakistan. They quantified the precise amount of dust density on the panels and analyzed the composition and particle size.

The scientists created one setup on the rooftop of a building in the Pakistani capital, Islamabad, and another one in the southern city of Bahawalpur.

“Islamabad’s climate is clean, pleasant and warm with an average annual temperature of 20.3 C. Even the driest month contains much rainfall, which contributes to cleaning PV modules,” they said. “Bahawalpur is located in a desert region with a dry climate with virtually no rainfall but with frequent wind and dust storms with an average annual temperature of 26.1 C.”

The setups consisted of 40 W polycrystalline modules and reference panels that were kept constantly clean. All modules were mounted on south-facing metal stands with fixed tilt angles of 34 degrees.

The research group collected global solar radiation data as well as the voltage and current of each module. They adjusted glass sheets to the PV modules to collect dust and analyze its properties.

“After six weeks of atmospheric exposure, dusty modules displayed significantly smaller efficiency as a function of different dust densities in the two regions,” they noted.

Read full story on PV magazine

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सम्पर्क

फाेन: +977-9800000000
ईमेल: example@gmail.com

ठेगाना

नयाँ बानेश्वर, काठमाडाैं, नेपाल
Kathmandu, Nepal

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