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| Name | Discover the Surprising Science Behind Wind Turbine Design for Lower Energy Costs! |
| Video Uploader | Video From Engineering with Rosie |
| Upload Date | This Video Uploaded At 29-09-2022 04:06:49 |
| Video Discription | Keep exploring at http://brilliant.org/EngineeringwithRosie Get started for free, and hurry—the first 200 people get 20% off an annual premium subscription. Wind turbines are big and getting bigger. The largest wind turbines now have towers that are over 150m tall, and blades that are well over 100m long. But how big can they get? And how big *will* they get? In this video I’m going to talk about the engineering behind this, that helps designers decide how big wind turbines should be. I’ll briefly cover some overall scaling effects and then go into a bit more depth about structural design of the most important components: the blades, tower, gearbox and bearings. If you would like to help develop the Engineering with Rosie channel, you could consider joining the Patreon community, where there is a chat community (and Patreon-only Discord server) about topics covered in the videos and suggestions for future videos and production quality improvements. https://www.patreon.com/engineeringwithrosie Or for a one-off contribution you can support by buying a coffee ☕️ here — https://www.buymeacoffee.com/engwithrosie Bookmarks: 00:00 Intro 02:26 Factors affecting wind turbine sizes 03:14 The Square-Cube Law 04:29 Thanks to Brilliant for sponsoring this video! 05:13 Which is more aerodynamically efficient? 06:07 Tug of War Analogy 06:42 Team Big - Cost increases slower than power output 07:15 The Audience - Cost increases in line with power output 07:37 Team Small - Cost increases faster than power output 07:56 Wind turbine structural design and classical beam theory 09:23 Bending due to self-weight 10:34 Wind turbine blade mass vs length evolution 11:08 Potential solutions to the blade mass problem 11:23 Other issues with large blades 12:10 Issues with towers getting bigger 13:00 Potential solutions to the tower problem 13:22 Issues with the gearbox 14:17 Rosie's thoughts on the issue 15:30 Rosie's 10-year anniversary cake speech 17:13 Outro Sources: IRENA Wind Power cost analysis report: https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2012/RE_Technologies_Cost_Analysis-WIND_POWER.pdf NREL Increasing Wind Turbine Tower Heights: https://www.nrel.gov/docs/fy19osti/73629.pdf NREL 2019 Cost of Wind Energy Review: https://www.nrel.gov/docs/fy21osti/78471.pdf RISOE Cost Optimisation of Wind Turbines for Large-Scale Offshore Wind Farms: https://www.osti.gov/etdeweb/servlets/purl/605630 Upscaling wind turbines: Theoretical and practical aspects and their impact on the cost of energy: DOI: 10.1002/we.527 Key Performance Indicators and Target Values for Multi-Megawatt Offshore Turbines: https://www.researchgate.net/publication/263209341_Key_Performance_Indicators_and_Target_Values_for_Multi-Megawatt_Offshore_Turbines Tall towers for large wind turbines: https://www.osti.gov/etdeweb/servlets/purl/992745 YouTube clips: Nabrawind 160m tower prototype installation: https://www.youtube.com/watch?v=RW9ENWdM79Q&t=14s Airborne wind: https://www.youtube.com/watch?v=z94mLMAhl3s Kincardine floating offshore: https://www.youtube.com/watch?v=O6ROkGgPfIo ACT Blade sailcloth blade: https://www.youtube.com/watch?v=9d1W-yARkRs This video was sponsored by Brilliant |
| Category | Science & Technology |
| Tags | renewable energy | mechanical engineering | circular economy | clean energy transition | climate change | green economy | stem | women in stem | stem education | Rosemary Barnes | Engineering with Rosie | women in engineering | technology | environmental science | environmental engineering | engineering tutorials | sustainability | science news | engineering news | explainer video | engineering explained | new energy |
