I have said over and over, the larger and slower the blade, the less fish kill. In certain parts of the world this is of monumental importance, in obtaining a non-consumption water use permit.
Looks more like cavitation not because of rotational speed but rather high flow (see the lower left corner, where water is flowing past another restricting step)... Design of the blades and surrounding construction should be very tough to sustain operation in conditions such hard without getting damaged very quickly...
This is not a kaplan turbine. Its an Archimedean Screw on a river in Southern England. This does not mince fish. Kaplans on the other hand can chop fish in half.
At that speed it can only be entrained air which implies a semi submerged screw profile. That can only be a hydrodynamic or archimedes screw. Very fish friendly below 1.5 revs/sec
Glad to see that the fish are getting through without being harmed. Hydro energy is one of the most promising 'green' energies. And making sure we aren't making fish into sushi is good! :D
I have said over and over, the larger and slower the blade, the less fish kill. In certain parts of the world this is of monumental importance, in obtaining a non-consumption water use permit.
homskoult 9 months ago
Death to all fish!
MarineRenewables 1 year ago
do the fish die
MW2DiabloKilla 1 year ago
Looks more like cavitation not because of rotational speed but rather high flow (see the lower left corner, where water is flowing past another restricting step)... Design of the blades and surrounding construction should be very tough to sustain operation in conditions such hard without getting damaged very quickly...
NuViss 2 years ago
you didnt see the one that got sliced into three pieces at
00:25 sec just put a 0 % drag filter on it & the blade will never get damaged
DARKJURNEY 2 years ago
I think no fish were hurt... wonderful!
The kaplan- turbine works with full power ( you see the cavitation at the front of the turbine blades). Are you the owner of this plant?
powerfarmer 2 years ago
This is not a kaplan turbine. Its an Archimedean Screw on a river in Southern England. This does not mince fish. Kaplans on the other hand can chop fish in half.
ArrrhJimlad 2 years ago
Cavitation at that low speed??? I think not.
A little knowledge can be a dangerous thing :)
At that speed it can only be entrained air which implies a semi submerged screw profile. That can only be a hydrodynamic or archimedes screw. Very fish friendly below 1.5 revs/sec
sniperpaddy 2 years ago
Glad to see that the fish are getting through without being harmed. Hydro energy is one of the most promising 'green' energies. And making sure we aren't making fish into sushi is good! :D
Ropinlizard 2 years ago
poor fish
Edricofifrit 2 years ago
lol
JordanMaster22 3 years ago