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The 15 in operation are not the puffy sails that the headline is talking about. They are a rotor design by a different manufacturer. The rotor style sails can s
by barbegal 5y ago
The 15 in operation are not the puffy sails that the headline is talking about. They are a rotor design by a different manufacturer. The rotor style sails can save about 10 to 20% of a ship's fuel https://theicct.org/sites/default/files/publications/Rotors_and_bubbles_2019_05_12.pdf https://theicct.org/sites/default/files/publications/Rotors_...
- diydsp 5y agothat's a great paper! I love that it walks the reader through the math! I wish more did that! I often feel papers I read are just a little outside my abilities, but this one actually makes a person smarter!
- pigeonhole123 5y agoI think most papers do this mostly to prevent too much scrutiny of their calculations. Publish or perish etc
- deleted 5y ago[deleted]
- whatever1 5y agoInformative video on how it works [1]. Btw the 20% is an overly optimistic scenario. [1] https://youtu.be/JhAlWHSez90 https://youtu.be/JhAlWHSez90
- briefcomment 5y agoFound this awesome simple demonstration of Flettner rotors.[1] One question I have is, how would this work with a sort of semi-circle fan version, where the blades retract when they start getting pushed into the wind. This could theoretically have the rotor turn off of just wind power instead of external power. Here's a crude drawing lol [2]. [1] https://www.youtube.com/watch?v=XsGin7CFaF8 https://www.youtube.com/watch?v=XsGin7CFaF8 [2] http://draw.to/D47BxHT http://draw.to/D47BxHT