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Please show sample calculations. Thank you. An industrial equipment manufacturer uses the test rig pictured below in order to determine the performance characteristics of a
Please show sample calculations. Thank you.
An industrial equipment manufacturer uses the test rig pictured below in order to determine the performance characteristics of a new model of pump. Feed Tank Water @ 18C All Pipes: 1" STD SCH Stainless Steel Pipe 2 im Suction Pipe: Length = 3 m Square-Edged Pipe Inlet 1 m P2) 1x Regular 90 Elbow 0.4 m a) As shown in the figure above, water (at 18 C) is fed from a pressurized tank (surface pressure = P.) to the pump. At various volumetric flow rates (in gallons per hour (GPH)), the pressure in the tank is decreased gradually until the pump just begins to cavitate. Using the data in the table below, calculate the NPSHR (ft) of the pump at each flow rate; use a table to present your results. 1,000 2,000 3,000 4,000 5,000 6.000 Volumetric Flow Rate Q (GPH) Pressure at Cavitation PA (psi-a) 14.72 17.70 22.44 28.78 36.95 47.15 b) Next, at a constant surface pressure of 14.696 psi, the suction pressure (P2), discharge pressure (P3), and input power to the pump (Win) are measured at various volumetric flow rates. Note that the suction and discharge pressure gauges are located right at the pump inlet and outlet respectively. Using the data in the table below, calculate the pump head Hp (ft), hydraulic power w of the pump (hp), and the pump efficiency ne (%) at each flow rate; use a table to present your results. 0 1,000 2,000 3,000 4,000 5,000 6,000 0.15 0.01 -0.16 -0.36 -0.62 -0.87 -1.33 Volumetric Flow Rate Q (GPH) Suction Pressure P, (psi-g) Discharge Pressure Ps (psi-g) Power Input to Pump Win (hp) 87.10 85.35 81.99 74.71 62.95 48.60 29.74 3.45 4.01 4.48 4.78 4.96 5.06 5.09 c) Using Excel, make a single figure that displays all the NPSHR (ft), Hp (ft), and no (%)together by plotting NPSHR and Hp on the primary vertical axis, ne on the secondary vertical axis, and Q (GPH) on the horizontal axis Step by Step Solution
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