Hydraulic Ram Pump Apparatus (SMT-FM-10)
This apparatus is designed to demonstrate the operating principles of a hydraulic ram pump, which utilizes the water hammer effect to lift water without any external power source. It allows students to study how the kinetic energy of flowing water in a pipe is converted into pressure energy to pump a portion of the water to a higher elevation, showcasing a practical application of transient flow phenomena.
The unit features a long feed pipe set at a gradient, supplying water to the ram where a waste valve closes suddenly above a certain flow velocity, creating a pressure surge. This pressure opens a check valve, allowing water to enter an air vessel that dampens the shock and ensures smooth delivery to an elevated tank. The waste valve, operated by a dead weight, then reopens to restart the cycle. Transparent components, including the tank and air vessel, along with adjustable valves for flow control and weight loading, enable excellent observation of each functional step and the role of the air cushion.
Its primary application is in civil and mechanical engineering education for teaching energy conversion, fluid transients, and sustainable pumping technologies. The key benefit is the hands-on analysis of a self-actuated pump, allowing students to investigate variables like valve weight, flow rate, and air volume effects on pumping efficiency and lift height, thereby linking theory to real-world applications in rural water supply or irrigation systems.