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Strategic Study of CAE >> 2018, Volume 20, Issue 3 doi: 10.15302/J-SSCAE-2018.03.014

A Review of Research on the Design of Fish-Friendly Hydraulic Turbines

1. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;

2. Tibet Agriculture & Animal Husbandry University, Linzhi 860000, Tibet, China

Funding project:CAE Advisory Project “Research on technical direction and system strategy of China’s energy technology revolution” (2015-ZD-09); Youth Program of National Natural Science Foundation of China “Fish Injury Mechanism Study Based on Hydrodynamic Characteristics of Tidal Tubular Turbine” (51709086) Received: 2018-05-09 Revised: 2018-05-16 Available online: 2018-09-04 15:38:29.000

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Abstract

Fish suffers inevitable injuries when passing a common hydraulic turbine. Injury and mortality of fish will cause pollution to the water. This will restrict the ecological development of the hydropower project. Aiming at the measures for downstream passage of the fish and existing problems, four kinds of injury mechanisms, namely, mechanical, pressure, shear force and cavitation injuries, are introduced in this paper. The injury degree of fish is related to the type and size of the fish body and the way to enter the hydraulic turbine system. According to the injury mechanisms, the main idea of the design of a fish-friendly hydraulic turbine is put forward. The criteria for designing a conventional fish-friendly hydraulic turbin and the design philosophy of a typical fish-friendly hydraulic turbine are expounded.

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