International Journal of Scientific and Research Publications, Volume 8, Issue 12, December 2018 396 ISSN 2250-3153 http://dx.doi.org/10.29322/IJSRP.8.12.2018.p8453 www.ijsrp.org Effect of Water Hammering Action on Performance of Hydraulic Ram Pump Nikita Mishra * , Er. Indu Bhusan Bhagat ** , Yogendra Kumar Jyoti *** Soil & Water Engineering, College of Agricultural Engineering Pusa Samastipur , Bihar. DOI: 10.29322/IJSRP.8.12.2018.p8453 http://dx.doi.org/10.29322/IJSRP.8.12.2018.p8453 Abstract- The hydraulic ram pump is a simple durable pump that can be used to deliver water from one source to another. The pump has the following characteristics flow, drive that is how much water is available to run the pump; drive head is the drop from the water level in the drive tank to the pump; delivery flow is the amount of water flowing into the delivery tank while the delivery head is the height from the pump up to the delivery tank. The normal operation range of this pump is 0.5 to10 litres/minute. The ram pumps are durable and either made from iron casting or welded steel pipe. The readily available local materials have been used to build the pump. No electricity or any power fuel is required to run the pump, therefore, it is less expensive to own and operate. The results from the study have shown that the impulse valve frequencies have a major impact on the discharge of a hydraulic ram pump. When impulse valve frequency increased from 65 beats / minute to 76 beats per minute, it was found that the quantity of waste water increased 47.20% but the quantity of useful water decreased by 74.50 %. Index Terms- Hydram; Efficiency; Head Ratio; Discharge of Waste Water; Discharge of Useful Water. I. INTRODUCTION he need for water has always been a basic motivation of mankind, which frequently had to be lifted from a lower height to a upper height. This ever increasing need of water ultimately resulted in the development of various pumping aids. The increasing need of water is always being closely associated with the demands of domestic water supply for rural populations, irrigation etc. which is a very vital input for development of mankind. With a view to meet above requirements, the following specific objectives have been taken up to test the performance of hydraulic ram pump. 1. To study the performance evaluation of Hydraulic Ram pump at different operating conditions. 2. To find out the efficiency of Hydraulic Ram pump. 3. To determine the characteristic curve of hydraulic ram pump. II. OPERATIONAL PRINCIPLE Hydraulic ram pump works on the principle of water hammering action. The water is caught by the spring catchment (or the stream catchment) and driven to the header tank by the feed pipe. The spring or stream catchment is the first barrier to prevent organic matters to enter in the system and to reduce the efficiency of the system. The header tank allows a continuous flow to the drive pipe and the pump and it the last barer to prevent sediments to enter in the pump. The drive pipe is made from galvanized iron (G.I.). It has to support the water hammer effect which is running continuously. The drive pipe is designed to conduct water as fast as possible to the pump and it must be straight. The Hydram is the most critical infrastructure of the system. The Hydram is attached to the pump basement. It has to absorb the shocks of the water hammer effect. The pump basement has to be carefully design because it is subject to the fatigue of the water hammer effect and is very difficult to maintain without stopping the pump from running. The delivery pipe conducts the water from the pump to the storage tank. The storage tank is used to hold water before it is delivered to communities. III. EXPERIMENTATION It includes the procedure for the performance evaluation of the hydraulic ram pump under different operations conditions. The experimental setup consists of a Hydraulic ram having a cylindrical air vessel connected to a small rectangular chamber through a non returning valve. A waste valve is also provided in the rectangular chamber to discharge the excessive water to the collecting tank. The chamber is connected to an elevated supply tank. A delivery pipe is connected to the foot of air chamber to deliver the water to collecting tank to measure the discharge delivered by the ram. The hydraulic ram pump under test was first checked to have the leak proof suction line. The supply tank was filled with the clear water up to a top of the header tank and was maintained throughout the experiment. The hydraulic ram pump under test was then run at the normal conditions. While starting the pump in the beginning, the discharge valve was kept closed to develop the full head under no load conditions. The valve was then open gradually to prevent the sudden surge in the discharge line. Once the operating conditions ware established the actual test was performed. In order to conduct the test to find out the efficiency of hydraulic ram pump, the volume of waste water and the volume of useful water at different pressure head ware recorded. There was no change in the water level of supply tank throughout the experiment. T