Axial Flow / Turbine Test Rig

This unit consists of:

• Pump/Turbines unit-mounted on a stand, complete with DC motor and speed controller
• A complete set of pipe work
• A differential manometer
• An inline flowmeter

Experimental capabilities:

• Reservoir Tank.
• Turbine outputs at design shaft speeds and constant head (output/flow characteristics).
• Determination of pump capacity.
• Determination of pump efficiency.
• Visualisation of pump mechanism.
• Turbine efficiencies at optimum design shaft speed and constant head (efficiency/flow and efficiency/output characteristics).
• General characteristics curves of the turbines under constant head at varying shaft speeds (iso-efficiency /curves) on parameters of unit speed and unit flow with lines of constant spear or guide vane opening.
• Runaway speed envelope curves at constant head and various openings.
• Determination of continuous ‘normal’ pump and ‘reverse’ turbine and pump characteristics curves.
• Observation of cavitations curves under pump and turbine duty.