Schueco uses CFD software for photovoltaic panels

A Mentor Graphics Mechanical Analysis Division product story
Edited by the Engineeringtalk editorial team Sep 9, 2008

Schueco, a producer of photovoltaic panels, used Flomerics' Flovent computational fluid dynamics (CFD) software to redesign its products to improve their thermal performance.

Today's photovoltaic panels present a major thermal design challenge since every degree centigrade of temperature rise reduces the power produced by 0.5 per cent.

'The CFD results helped us understand exactly how the panels were being heated and guided us as we made major improvements to the design,' said Hamid Batoul, technical director of the solar department, Schueco International, Paris, France.

'Examining the flow of air under the photovoltaic panels showed that the size of the passageway was constricting the flow of air.

'We increased the depth of the profile that supports the photovoltaic panels to increase the distance between the panels and the roof.

'Re-running the simulation demonstrated that this increased the airflow and reduced the temperature of the photovoltaic panels.

'Through these studies, we optimised the design of the solar energy systems and also gained an understanding of how temperature is affected by different arrangements of panels and ambient conditions.' Schueco provides complete solar energy systems, including all components needed to produce energy from the sun, including panels, collectors, tanks, mounting system, control units and monitoring electronics.

Sunlight hits the photovoltaic panels and generates direct current.

Schueco was the first company in the solar energy business to recognise that substantial improvements in photovoltaic panel performance could be achieved by optimising thermal design.

'I previously worked for several companies making telecommunications equipment and used thermal simulation to solve thermal challenges,' said Batoul.

He added: 'I found that Flomerics' Flotherm CFD software was the most powerful tool available in that space.

'Performing thermal simulation of solar energy systems requires different software because of the need to model building materials that play a role in thermal performance.

'Flomerics offers Flovent CFD software designing for addressing heating, ventilation and cooling problems in buildings.

'We tried Flovent and found it met all our requirements such as modeling the thermal characteristics of glass and simulating the effects of radiation on the panels.' Batoul uses Flovent to model complete solar systems.

Flovent simulates the absorption and reflection of solar energy by the panels, the transfer of heat to aluminum profiles and the surrounding air, and so on.

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