@@hydroAJK Are they new turbines? I've read that the newer turbines are designed to allow fish to pass through (mostly) unharmed, but fish can't handle the pressure differential in older turbine designs (hence the screens).
Fish-friendly designs: Runner designs, such as rounded leading edges, reduce fish injury. However, after the shutdown and during periodic inspection, no fish were found inside the spiral case or tailrace tunnel.
Just like a turbo.
But bigger
can fish pass through it unharmed?
Not a chance. But there are screens to keep them out. Practical Engineering did some really good videos on how they deal with fish at dams.
@jeffspaulding9834 It doesn't harm fish. They can easily pass through. Enough space to pass a fish.
@@hydroAJK Are they new turbines? I've read that the newer turbines are designed to allow fish to pass through (mostly) unharmed, but fish can't handle the pressure differential in older turbine designs (hence the screens).
Fish-friendly designs: Runner designs, such as rounded leading edges, reduce fish injury. However, after the shutdown and during periodic inspection, no fish were found inside the spiral case or tailrace tunnel.
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