Wind tunnel checks seen by smoke circulate at IFI Aachen
Picture: Extra Simple
Norwegian startup Over Simple reviews the preliminary outcomes of a sequence of computational fluid dynamics (CFD) simulations of its vertical bifacial rooftop PV system, which makes use of specifically designed photo voltaic modules.
The IFI Institut für Industrieaerodynamik GmbH in Germany supported the corporate in measuring the wind resistance of the system.
“Wind tunnel checks on a 1:50 mannequin with 360 stress faucets have been carried out in a big boundary layer wind tunnel laboratory at IFI Aachen,” CEO Customs of Trygve Mongstad pv journal. “Assessments have been carried out for various heights of the constructing and at totally different angles of assault on the constructing. “
The German institute proved that the vertical system has no elevate, even with robust winds of as much as 47 meters per second, in response to Mongstad.
“All measurements and analyzes are in accordance with the German Requirements DIN EN 1991-1-4:2010-12, DIN EN 1991-1-4/NA:2010-12 and the wind tunnel testing guideline of the German/Austrian/ Swiss Wind Engineering Affiliation, WtG, in addition to EN 1991-1-4: 2005,” he mentioned. “As well as, they adjust to worldwide codes akin to ASCE 7-22 and ASCE 49-21.”
Simulations confirmed the system might work with out ballast or roof attachment, in response to his assertion.
The corporate at the moment makes use of PERC cells with a bifaciality of 77% to 81% or HJT cells with a bifaciality of 90% in its demonstrators. The PV system, which features a mounting system and photo voltaic panels, is available in a pre-assembled package deal, which makes them simple to mount. Every unit measures 1,600 mm x 1,510 mm x 350 mm, weighs 24.5 kg, and has an IP68 enclosure score and three.2 mm double tempered glass.
Over Simple plans to work with manufacturing companions in China and Spain to start manufacturing photo voltaic modules. Presently, it makes use of photo voltaic cells from undisclosed Asian producers.
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