DefinePK

Abstract

Pelton turbine is the most commonly used high head impulse turbine with low discharge. For obtaining highest power output from runner one of the most important parameter is quality of jet which strikes bucket tangentially. The quality of jet and its impact work depends on the distance between the nozzle exit and runner along with its angle of strike. In the present paper, the effect of distance between the nozzle outlet and the runner on performance of Pelton turbine is discussed with the help of numerical technique. It is found that that axial flow of water is more for least (100 mm) distance while the radially inward and outward flow is more for larger (150 mm) distance between nozzle and runner.