h a l f b a k e r y"More like a cross between an onion, a golf ball, and a roman multi-tiered arched aquaduct."
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Appartently yer traditional wind turbines kill a lot of birds,
which I'm told is a bad thing.
And so, the research department of NMRM Co (me)swung
into action. After three coffees and a few fags, I could see
the light, despite the fumes. But, I am digressing. The
idea was a large tall silhouette
of a cat that goes in front
of wind turbine and the turbine blades are painted to
resemble furry cat limbs. If you think of a huge
manikeneko with rotary arms, you're getting there.
More versatility would come from just having a blank
screen, projecting a moving cat on it daytimes, and you
could have an owl at night, to keep off or something.
Regrettably the original prototype of a wind-turbine with
cats epoxied in place with Araldite didn't work out to well,
aerodynamically but you can't have everything in the life,
ne?
Bird of Prey Illusions
Put_20Window_20Tint..._20Rise_20Buildings
[theircompetitor, Feb 13 2016]
LEDs on moving blades
CFDU
So, construct a picture of an owl or cat or ... that is as big as the entire circle swept out by the moving turbine blades. [Vernon, Feb 13 2016]
[link]
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It's only the turbine blades that cause problems, yet
its the hub that generates the power. So... |
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ONE problem is that for smaller turbines. the blades
rotate fast enough to be a blur that while not actually
invisible tends to be un-noticed. Another problem is
"timing". If a bird sees the moving blade but
underestimates when it will intersect the space through
which the bird thinks it can safely fly.... |
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I think a better solution was proposed elsewhere on the
HalfBakery, in an entirely different context. I'll find
and link it. Because in this context the birds are
definitely going to see something they might wish to
avoid. |
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I applaud your idea for trying to save the lives of innocent
birds. Not a nice way to die, me thinks. |
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Would it help to have an ultrasonic bird repeller in the hub? It
could make angry cat noises during the day and hooting
sounds at night. |
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I don't think most large wind turbines spin fast enough to do
a POV display on the blades. And do birds even have POV
sufficient for that? |
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[notexactly], If the blades spin fast enough that they are
basically a blur to a bird, then a POV display should work.
If they spin slow enough (in weaker wind) to be seen as
turning blades, then it would be interesting to find out just
how many birds actually get hit by the moving blades that
they can see. |
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//Not a nice way to die, me thinks.//
From the evidence I have seen at wind farms and glancing through bird impact surveys for wind farms, I would guess that the deaths - sliced in two by a blade travelling at up to 150mph - are not particularly drawn out. |
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I'm just looking back at this...this was not at all deliberate
but an owl and a pussycat.. |
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Either I'm channelling Edward Lear, or he was channeling
me? |
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There's an entire Phillip K Dick novel in there somewhere. |
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Does this idea repel bats? They are killed not by being hit by
the blades, but by flying through the low pressure regions
behind them, which causes their lungs to bleed, and then
they drown in their own blood. |
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//Does this idea repel bats?// |
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The ultrasonic tweak mentioned above is very effective
against bats. On the screen could be projected a very large
image of a Borg waving his/hers/its arms around screaming of
assimilations and immolations. Then everything would
scamper. |
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