Novel Blade Design and Performance Evaluation of a Single-Stage Savanious Horizontal Water Turbine

Abstract

A type of micro-hydropower turbine known Savanious horizontal water turbine operates in freely flowing water of streams, canal, rivers etc. In a current study, blade shape and flow rates were used as the basis for an experimental assessment of a single- stage savanious horizontal water turbine. Numerical, experimental and statistical methods have used to examine the impact of blade shape and flow rates on performance metrics like rotational speed, torque and efficiency. The finding indicates that round curved blades performed better than semicircular and straight curved in terms of overall performance such as torque, rotational speed and efficiency. The performance comparison in term of efficiency amongst round curve blade, semicircular blade, and straight curve blade is carried out and found the maximum efficiency of 47.7%, 39.5%, and 36.5% at respectively at their corresponding speed of water 0.004 m³/s. However, the turbine's performance over optimum flow rates of 0.004 m³/s was found to be decreased due to the increase of water depth and higher water pressure. Moreover, output response was found to be significantly impact by all input parameters through ANOVA method.

Enhancing the performance of Gravitational Water Vortex Turbine through Novel Blade Shape by Flow Simulation Analysis

“…Water circulation increases due to increase in vortex height, the resultant formation of vortex vorticity. Vorticity measures the rotation of the fluid; therefore, increasing vorticity can increase the rotational speed (Ullah and Sharif 2022). Moreover, it can be absorbs that the maximum rpm of all three runners can be achieved under more significant vortex height.…”