Cavitation Demonstration Unit (Font: Arial Font Size: 32 ) Schematic Diagram: (Font: Arial Font Size: 18 ) Fig 1: Cavitation Demonstration Unit (Font = Arial : Font size = 12) Experimentation Capabilities: To demonstrate the appearance and sound of cavitation To demonstrate the conditions for cavitation to occur To show, how cavitation can be prevented by raising its static pressure (Font = Arial : Font size = 14) Procedure: Open the valve V1 and close the inlet valve Close the FCV and switch on HB and slowly open the FCV Now slowly open the inlet valve and allow water to flow from cavitation apparatus If thermometer is available measure and record the temperature of water Observe the visible cavitation occurs in expansion of test section Continue to open inlet valve until to obtain maximum flow and note the milky formation at throat Close the inlet valve until there is no cavitation in test section Record the following parameters P1 bar, P2 bar and P3 bar) Determine the flowrate by timing the collection of a known volume of water (Font = Arial : Font size = 6) Abbreviations: V1 = Ball valve FCV = Flow Control Valve HB = Hydraulic Bench P1 = Upstream water pressure P2 = Pressure at throat P3 = Downstream water pressure Industrial Applications: (Font = Arial : Font size = 8) Fig 2: Cavitation Phenomena in Kaplan turbine Fig 3: Impeller vane damaged due to cavitation Fig 4: Cavitation damage on the blades at the discharge from a Francis turbine Department of Mechanical, Manufacturing and Mechatronics Department University of Engineering and Technology Lahore, KSK Campus