Analysis and Evaluation of Parameters Determining Maximum Efficiency of Fish Protection

[摘要] The article is concerned with experimental research findings. The efficiency of fish fry protection from entering water inlets is the main criterion of any fish protection facility or device. The research was aimed to determine an adequate mathematical model E = f(PCT, Vp, α), where PCT, Vpand α are controlled factors influencing the process of fish fry protection. The result of the processing of experimental data was an adequate regression model. We determined the maximum of fish protection Emax=94,21 and the minimum of optimization function Emin=44,41. As a result of the statistical processing of experimental data we obtained adequate dependences for determining an optimal rotational speed of tip and fish protection efficiency. The analysis of fish protection efficiency dependence E%= f(PCT, Vp, α) allowed the authors to recommend the following optimized operating modes for it: the maximum fish protection efficiency is achieved at the process pressure PCT=3 atm, stream velocity Vp=0,42 m/s and nozzle inclination angle α=47°49'. The stream velocity Vp has the most critical influence on fish protection efficiency. The maximum efficiency of fish protection is obtained at the tip rotational speed of 70.92 rpm.

[发布机构] Department of Water Management, Utilities and Environmental Protection, Platov South-Russian State Polytechnic University (NPI), St. Prosvescheniya 132, Rostov region, Novocherkassk; 346428, Russia^1;Department of Military and Naval Surgery, Rostov State Medical University, Suvorova street 119, Rostov region, Rostov-na-Donu; 344022, Russia^2

[学科分类] 土木及结构工程学

[关键词] Analysis and evaluation;Experimental research;Inclination angles;Maximum Efficiency;Optimization function;Process pressure;Regression model;Statistical processing