Practicable determine the optimal point micro-turbine Kaplan diagonal 45°

Axial flow micro hydro turbines are suitable for use in a large percentage of micro hydro potentials in Iran. The turbine under the study is an axial flow micro hydro of Kaplan type, with its main shaft subtending 45 º to the line of horizon. However the turbine was originally designed to operate without any guide vanes but due to its low performance a number of guide blades were included to the original design and so the operating conditions of the turbine were improved. The turbine was tested according to standard turbine tests. In order to study the performance of the turbine all the standard performance curves such as the operating curves were constructed. Operating curves help determine the operating point of the turbine under certain heads and flow rates. This work consists of appraisal of the operating characteristics of the turbine including a comparative study of the operating points for various blades settings.