Design, Modeling, and CFD Analysis of a Micro Hydro Pelton Turbine Runner: For the Case of Selected Site in Ethiopia

Table 5

Basic design calculation summary of Pelton turbine.

Descriptions	Data	Unit	Design guidelines Thake 2000 [6]
	46.5	mm	H-net turbine = × manifold efficiency
	0.97	—	Ranges (between 0.95–0.99).
	29.6	m/s	Velocity of the jet (for )
	54.4	mm	Diameter of the jet (for )
	0.46	—	For maximum power output (blade speed/V-jet) ratio
Bucket speed	13.6	m/s	6
	1500	Rpm	Standard generator RPM
	1170	Rpm	Runaway speed = 1.8, turbine optimum speed
	0.56		Total system efficiency
	36.57	kW	Estimated electrical power =
-turbine	51.2	kW	Turbine mechanical power = ρgH-net turbine