Hydropower is a kind of green sustainable renewable energy. The traditional unregulated runoff hydropower station has a great impact on fish. They will block the passage of the fish, and the water will even pull the fish into the water turbine, causing the fish to die. A team from Munich University of Technology recently found a good solution.
They have designed a runoff hydropower station that can better protect fish and their habitats. This kind of hydropower station adopts a shaft structure, which is almost invisible and inaudible. Dig a shaft and a culvert on the upstream riverbed, and install the hydraulic turbine in the shaft at an angle. Install a metal grid above the hydraulic turbine to prevent debris or fish from entering the hydraulic turbine. The upstream water flows through the hydraulic turbine, and then returns to the downstream river after passing through the culvert. At this time, the fish can have two channels to the downstream, one is to go down through the incision at the upper end of the dam. The other is to make a hole in the deeper dam, from which fish can stream downstream. After rigorous scientific research and verification, it is found that the vast majority of fish can swim safely through this power station.
It is not enough to solve the problem of fish going downstream. In nature, there are many fish like Chinese sturgeon, salmon, which migrate and spawn. By building a ladder like fishway for fish migration, the originally fast flow rate can be reduced, and the fish can move upstream like a Super Mary. This simple design is also suitable for the wider water surface. While the generator is running, it can ensure the two-way swimming of the fish.
Biodiversity protection is a common topic all over the world. It is of great significance in maintaining climate, protecting water sources, protecting soil, and maintaining the stable ecosystem of the earth. Biodiversity is the basis of life on the earth.
Post time: Nov-07-2022
