The REGRESSION ANALYSIS IN CROSS-FLOW TURBINES DESIGN FOR HYDROPOWER PLANTS

Abstract

This paper presents the results and findings of an extensive research related to the characteristics of over 270 Cross-flow turbines that have been manufactured and installed mostly at small hydropower plants. These results are presented in the form of correlation curves and regression equations relating the usual turbines constants such are specific speed, runner diameter, wicket gate (jet) width, runner speed, shaft diameter. Engineering calculation of estimating turbine diameter and turbine speed have been checked and verified, and a regression analysis method is presented for estimating Cross-flow turbine main parameters. This paper presents results of regression analysis and empirical relations which are very useful in the preliminary planning of hydroelectric power plants with Cross-flow turbines and their components based on 270 actual manufactured and operating units.