Optimization of Fish Protection System to Increase Technosphere Safety

[摘要] The article is concerned with field study data. Drawing upon prior information and considering structural features of fish protection devices, we decided to conduct experimental research while changing three parameters: process pressure PCT, stream velocity Vp and washer nozzle inclination angle αc. The variability intervals of examined factors are shown in the Table 1. The conicity angle was assumed as a constant one. The box design B3 was chosen as a baseline being close to D-optimal designs in its statistical characteristics. The number of device rotations and its fish fry protection efficiency were accepted as the output functions of optimization. The numerical values of regression coefficients of quadratic equations describing the behavior of optimization functions Y1 and Y2 and their formulaic errors were calculated upon the test results in accordance with the planning matrix. The adequacy or inadequacy of the obtained quadratic regression model is judged via checking the condition whether Fexp≤ Ftheor.

[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

[学科分类] 土木及结构工程学

[关键词] Experimental research;Fish protection devices;Optimization function;Protection efficiency;Quadratic equations;Quadratic regression;Regression coefficient;Statistical characteristics