Vertical Axis Wind Turbines - IN 60 SECONDS

What to choose? Vertical or Horizontal axis turbines? When you imagine a wind-turbine you probably think about something like this… But there are other designs out there, like the Vertical Axis Wind Turbine, or VAWT inshort. The savonius model is very crude and was already used by the Persians three and a half thousand years ago. Then there is the newer Darrieus model, with blades revolving around a vertical shaft. Each blade gets hit by the wind at a different angle. They make use of an airfoil design so they generate lift, to make the turbine rotate. A generator at the bottom of the structure converts the kinetic energy into electricity. The VAWT’s are omnidirectional. They do not need yaw mechanisms to be pointed in the wind. Also compared to Horizontal turbines VAWT’s can be grouped closer together. Because they can operate in turbulent and gusty wind. So why don’t we see more VAWT’s then? Well, VAWT's tend to be less reliable and less efficient than horizontal turbines This makes them less suited for large scale energy production But the field is still under development, so who knows. We hope you enjoyed this short lecture. Would you like to know more about offshore energy? Click here to see more of our video. And make sure to click here to subscribe to our channel.

Channel: DOB-Academy

Views: 285,002

Keywords: DOB-Academy, ecological impact, fossil fuels, sustainability, renewables, energy transition, wind farms, wind turbine, bird migration, wind energy, wind, energy, green energy, energietransitie, energiewende, wind power, offshore, offshore wind, sea, windmolen, VAWT, Vertical, Competition, Axis, Axes, De oude bibliotheek, wind op zee, climate, turbine

Id: RPcQLZ0xBAI

Length: 1min 26sec (86 seconds)

Published: Mon Mar 26 2018