[–]Grospoliner0 points
0 points
0 points
(+0|-0)
ago
(edited ago)
I would expect it to be more of a economic factor than anything else. With a single blade, they can counter weight it with cheaper materials than multiple blades. From what I've read though, multi-bladed turbines have increased efficiency, though it becomes marginal after two. For the energy aspect, a single blade will be less efficient than a two or three blade system from the physics of it.
The inertia aspect of it is for the braking system, which with lower inertia, it is easier to start and stop which is better for maintenance and reduced cost.
[–] ZYX321 ago
I was talking versus 2 blades. Same mass as a balanced single blade, more energy capture. No?
[–] Grospoliner ago (edited ago)
I would expect it to be more of a economic factor than anything else. With a single blade, they can counter weight it with cheaper materials than multiple blades. From what I've read though, multi-bladed turbines have increased efficiency, though it becomes marginal after two. For the energy aspect, a single blade will be less efficient than a two or three blade system from the physics of it.
The inertia aspect of it is for the braking system, which with lower inertia, it is easier to start and stop which is better for maintenance and reduced cost.