{"product_id":"darrieus-wind-turbine-von-undefined-1","title":"Darrieus wind turbine","description":"\u003cp\u003eThe Darrieus wind turbine is a type of vertical axis wind  turbine (VAWT) used to generate electricity from the energy  carried in the wind. The turbine consists of a number of  aerofoils usually--but not always--vertically mounted on a  rotating shaft or framework. This design of wind turbine  was patented by Georges Jean Marie Darrieus, a French  aeronautical engineer in 1931. The Darrieus type is  theoretically just as efficient as the propeller type if  wind speed is constant, but in practice this efficiency is  rarely realised due to the physical stresses and  limitations imposed by a practical design and wind speed  variation. There are also major difficulties in protecting  the Darrieus turbine from extreme wind conditions and in  making it self-starting.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9786130677176\"\u003e\u003ch3\u003eVertical axis wind turbine, Electricity, Energy, Wind, Turbine, Airfoil,        Georges Jean Marie Darrieus, Aerospace engineering, Efficient energy        use, Symmetry, Angle of incidence, Angle of attack\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9786130677176","offer_id":57401323946309,"sku":"9786130677176","price":180.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/235d28ae-6ede-466e-a2dc-3ac720bf5213.jpg?v=1774849789","url":"https:\/\/shop.autorenwelt.de\/products\/darrieus-wind-turbine-von-undefined-1","provider":"Autorenwelt Shop","version":"1.0","type":"link"}