![]() These outlet flow conditions are used to calculate the efficiency of the impeller. From the CFD analysis, the velocity and pressure in the outlet of the impeller is predicted. To improve the efficiency of mixed flow pump, computational fluid dynamics (CFD) analysis is one of the advanced tools used in the pump industry. ![]() So, shock losses, impeller friction losses, volute friction losses, disk friction losses and recirculation losses of centrifugal pump are also considered in performance analysis of centrifugal pump. The performance analysis of centrifugal pump is carried out after designing the dimensions of centrifugal pump. The number of impeller blade is 9 blades. The low specific speed is chosen because the value of specific speed is 100. The head and flow rate of this pump are 10 m and 0.179m 3 /s and the motor speed is 2900 rpm. In this paper, the pump is driven by one horse power electric motor and the design is based on Berman Method. Moreover, centrifugal pumps are produced by manufacturing processes in Myanmar. The design and performance analysis of centrifugal pump are chosen because it is the most useful mechanical rotodynamic machine in fluid works which widely used in domestic, irrigation, industry, large plants and river water pumping system. A design of centrifugal pump is carried out and analyzed to get the best performance point. The pump casing is to guide the liquid to the impeller, converts into pressure the high velocity kinetic energy of the flow from the impeller discharge and leads liquid away of the energy having imparted to the liquid comes from the volute casing. In centrifugal pump, water enters axially through the impeller eyes and water exits radially. The impeller is a rotating component and the casing is a stationary component. Two main components of a centrifugal pump are the impeller and the casing. In this paper, centrifugal pump is analyzed by using a single-stage end suction centrifugal pump. This paper deals with the design and performance analysis of centrifugal pump. The designed single-suction centrifugal pump can fulfill the requirements of chemical plants, domestic applications, water supply process and agricultural process and then can improve pump efficiency. The inlet width and outlet width are 12.6 mm and 6 mm respectively. The designed impeller has 51 mm inlet diameter, 117 mm outlet diameter, 13º inlet vane angle and 14 º outlet vane angles. In this paper, design of impeller of single-suction centrifugal pump that can develop a head of 16 m and deliver 0.17 m 3 /min of water at the high speed of 2850 rpm. The impeller comprises an essential circular disk-shaped carrier with a number of blades arranged at an angle out from the disk plane. A single-suction centrifugal pump includes an impeller rotating inside a pump housing, volute casing. A single-suction centrifugal pump is widely used in domestic application, water supply process and agricultural process. Modern public utilities, chemical plants, municipal water and sewage works and other fields, too numerous to mention would be seriously handicapped if these machines did not exit. The application and use of pump today are universal. "Pumping accounts for 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.Pump technology is a proven technology in the world. Very helpful, if the manufacturer didn't furnish a NPSHR curve. I have found calculation of Nss at various flowrates over a pump's range to be indicative of NPSH Required at flowrates other than BEP flow. You can calculate Ns for any combination of Flow, Head and Speed, to get an idea of how well the design of a pump is suited for any combination of variables within its range, but it must be calculated at a given pump's BEP conditions to be used as a meaningful reference point for comparison of the advantages and disadvantages between various pump designs.Īlso useful is the related calculation of Nss, suction specific speed, which correlates the suction head requirements to the same pump design attributes. As you can see there the Ns relates directly to the equation which is a function of Flow, Head and Speed and can be indirectly related to the optimum shape of the impeller, power requirements and subsequent pump efficiency.
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