IRN АР09058066 «Development of the active mobile hydroacoustic fish-protecting device for protection of juveniles from hit in spillways of HPS dams, reservoirs»
Now effective fish-protecting devices are not made for protection of fishes and juveniles of fishes against hit in water waste constructions of dams of large hydroelectric power stations and water reservoirs. The water waste constructions of large water-engineering systems, are characterized ultrahigh (up to 500 m 3 /s) volumes of the dumped water. And dumping of water can go in the volley way – when there is technical need, for short period large amount of water is dumped. At the same time on the big site before spillway quickly there is powerful current of the flowing-away water which tightens through water waste the channel all fish and whitebaits. Traditional types of fish protection are of little use here, in view of extreme conditions of volley spillway. The scientific novelty of the project consists in implementation of new approach in the field of fish-protecting devices – the active mobile high-intensity acoustic fish protection capable to effectively protect fishes and juveniles on spillways of dams of large hydroelectric power stations and water reservoirs.
Тo develop the effective fish-protecting device (further FPD), for protection of fishes and juveniles of fishes from hit in water waste constructions of hydroelectric power station and other large water-engineering systems.
А development of the effective fish-protecting device for large water-engineering systems with volley spillways, production and testing of prototype, execution of the package of documents for production and operation.
The conducted hydrological studies made it possible to study the depths and the carrying speeds of the water flow at the approach to the spillway of the dam. Ichthyological studies have made it possible to obtain data on the species, age and size composition of the ichthyofauna, the biological characteristics of protected fish and juveniles. The studies of the first year served as the basis for making the right decisions on the design, configuration and operation of an active mobile sonar fish protection device for effective protection of fish and juveniles from entering the spillways of large hydroelectric dams and reservoirs. The Kirov reservoir Ural-Kushumskaya irrigation and watering system (UKIWS) in the West Kazakhstan region was chosen as a model reservoir. The dam of the Kirov reservoir was chosen as a model spillway. 1 article was published in a foreign publication recommended by CQASES, 1 field day was carried out.
A design was developed and a prototype of an active mobile hydroacoustic fish protection device was developed to effectively protect fish and juveniles from entering the spillways of large hydroelectric dams and reservoirs. 2 patents were received in the Kazakhstan patent bureau, 1 seminar was held.
In 2023 an active mobile hydroacoustic fish protection device was tested to effectively for protect fish and juveniles from entering the spillways of large dams and hydroelectric power plants and reservoirs. The effectiveness of the developed fish protection device has been determined. FPD’s tests showed that the average efficiency is 63.4%. This indicator meets the Requirements for fish protection devices of water intake and discharge facilities, dated May 31, 2019 No. 221. According to Annex 1 of the Requirements, the efficiency of the FPD for juvenile fish larger than 12 millimeters is at least 60% for discharge facilities. In that way, the developed active mobile hydroacoustic fish protection device to protect fish and juveniles from entering the spillways of large dams and hydroelectric power plants and reservoirs has an average efficiency 3.4% higher than in the regulatory requirement. A package of technical documentation has been developed for the manufacture and operation of an active mobile hydroacoustic fish protection device to protect fish and juveniles from entering the spillways of large dams and hydroelectric power plants and reservoirs. The purpose of the documentation is the manufacture of this FPD at Kazakhstani enterprises. This will significantly reduce the cost of FPD by cost reduction of delivery and maintenance from another country. The technical documentation structurally contains two sections. The first section to the issues of the FPD’s manufacturing and layout. The second section dedicated to the issues of the FPD’s operation.