3 ms·

Does anyone have a link to an explanation of exactly how this turbine works? I'm particularly interested to know whether it's bi-directional, how power is trans

by yosito 6y ago

Does anyone have a link to an explanation of exactly how this turbine works? I'm particularly interested to know whether it's bi-directional, how power is transmitted back to shore, and how it's anchored in place.

harry-wood 6y ago
yes I'd like to know more details. This video shows a bit more: https://www.youtube.com/watch?v=9hN3dBpPu8Q https://www.youtube.com/watch?v=9hN3dBpPu8Q Bi-drectional? Looks like those adjusting flaps are to make it bi-directional yes, but maybe the angled legs mean it has a preferred flow direction (I'm guessing). How power is transmitted back to shore? The video seems to show, in red, some good old "big fat cable" technology. It's described only as powering the Orkney Islands. I wonder if surplus energy there can be fed back to the mainland grid. How it's anchored in place? Two massive mooring cables front and back. The main central cylinder floats, with the legs and rotors dipping down into the water (Maybe obvious, but not to me at first)
- yosito 6y ago
  Thanks! This video was exactly what I was looking for.
papercrane 6y ago
I can't find a lot of detail, but to answer a couple of your questions. > how power is transmitted back to shore, Article says there is a static sea-bed cable that that is connected via a "dynamic" cable to the turbine. > how it's anchored in place. > whether it's bi-directional Very high level overview of the platform here: https://orbitalmarine.com/o2/ https://orbitalmarine.com/o2/ It shows an forward and aft mooring points, so my assumption would be is that at anchors are put in the ocean bed and that the whole structure is held in place by cables. It also shows a "Two-bladed pitching hub allows bidirectional operation", so I take that to mean the blades are rotated in the hub depending on which way the tide is flowing.

3 ms·

Does anyone have a link to an explanation of exactly how this turbine works? I'm particularly interested to know whether it's bi-directional, how power is trans

by yosito 6y ago

harry-wood 6y ago
yes I'd like to know more details. This video shows a bit more: https://www.youtube.com/watch?v=9hN3dBpPu8Q https://www.youtube.com/watch?v=9hN3dBpPu8Q Bi-drectional? Looks like those adjusting flaps are to make it bi-directional yes, but maybe the angled legs mean it has a preferred flow direction (I'm guessing). How power is transmitted back to shore? The video seems to show, in red, some good old "big fat cable" technology. It's described only as powering the Orkney Islands. I wonder if surplus energy there can be fed back to the mainland grid. How it's anchored in place? Two massive mooring cables front and back. The main central cylinder floats, with the legs and rotors dipping down into the water (Maybe obvious, but not to me at first)
- yosito 6y ago
  Thanks! This video was exactly what I was looking for.
papercrane 6y ago
I can't find a lot of detail, but to answer a couple of your questions. > how power is transmitted back to shore, Article says there is a static sea-bed cable that that is connected via a "dynamic" cable to the turbine. > how it's anchored in place. > whether it's bi-directional Very high level overview of the platform here: https://orbitalmarine.com/o2/ https://orbitalmarine.com/o2/ It shows an forward and aft mooring points, so my assumption would be is that at anchors are put in the ocean bed and that the whole structure is held in place by cables. It also shows a "Two-bladed pitching hub allows bidirectional operation", so I take that to mean the blades are rotated in the hub depending on which way the tide is flowing.