Pump Tutorial A centrifugal pump is used to pump a liquid with the properties given below. Liquid is pumped from a storage tank at 95 kPa (a) to a discharge tank at 300 kPa (a). The system configuration is given in the table below. Table 1: system configuration Suction Discharge 4 50 Length (m) Diameter (m) 0.07 0.055 90° bends (L/D=35) 5 12 T piece (L/D = 7) 1 1 Gate valve (L/D = 35) 1 2 Static height (m) 2 5 Liquid density = 1100 kg.m³ Viscosity = 1.5 x 10-³ Pa.s Vapour pressure of the liquid = 25 kPa (a) Material of construction of pipe is commercial steel, ɛ = 000045 m Table 2: Pump data Flowrate 0 10 20 30 40 (m³.hr¹¹) Head (m) 55 56 51 36 6 0 2 6 11 19 NPSH (m) A hsp 22 3.1. Graphically determine the optimal operating point of the pump in the above system using the pump data in Table 2. 3.2. Determine the NPSH of the system and determine whether the pump will cavitate when used in the above system.

Pump Tutorial A centrifugal pump is used to pump a liquid with the properties given below. Liquid is pumped from a storage tank at 95 kPa (a) to a discharge tank at 300 kPa (a). The system configuration is given in the table below. Table 1: system configuration Suction Discharge 4 50 Length (m) Diameter (m) 0.07 0.055 90° bends (L/D=35) 5 12 T piece (L/D = 7) 1 1 Gate valve (L/D = 35) 1 2 Static height (m) 2 5 Liquid density = 1100 kg.m³ Viscosity = 1.5 x 10-³ Pa.s Vapour pressure of the liquid = 25 kPa (a) Material of construction of pipe is commercial steel, ɛ = 000045 m Table 2: Pump data Flowrate 0 10 20 30 40 (m³.hr¹¹) Head (m) 55 56 51 36 6 0 2 6 11 19 NPSH (m) A hsp 22 3.1. Graphically determine the optimal operating point of the pump in the above system using the pump data in Table 2. 3.2. Determine the NPSH of the system and determine whether the pump will cavitate when used in the above system.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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For a 6.25-inch Model 4075 pump operated at 1160 rpm, if 450 GPM of water is to be delivered, what will be the estimated pump head in ft? HEAD IN FEET 30 25 0 0 0 10 O 6 ft 7.25" (184mm) 20 7.00" (178mm). 6.75" (171mm). 6.50" (165mm)] 15 6.25" (159mm). 5 O 16 ft O 20 ft O 12 ft aco® L/SEC 5 OT 10 Model 4075 FI & CI Series 15 -6-6 ⁰ dº 20 ANA 888 778 25 REQUIRED NPSH do 1160 RPM November 1, 2010 K ・dº- [M 90 do 30 8800 81 1HP(.75KW) DeJ kin do 60% 35 do 50 Curve no. 2175 Min. Imp. Dia. 6.25" Size 5 x 4 x 7.0 40 45 3HP(2.2KW), 2HP(1 5KW) 5HP(1 1KW)> CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 1.0 L 75 150 225 300 375 450 525 600 675 FLOW IN GALLONS PER MINUTE NOWONG FEET 15 12 7 6 2 1 NPSH 758 50 5 HEAD IN METERS 45 586888 KPO 60 40 20 10 LO HEAD IN KILOPASCALS
Fluid Mechanic Water, as seen in the figure above, is a 25° angle contractor in a piping system. With an elbow, it is directed downward in the installation with a volumetric flow of 0.025 m3 / s. Effective pressure at 1 point is measured as 2 bar. The flow is frictionless and the effects of gravity are neglected. a-)Effective pressure at point 2 b-) Elbow in place Calculate the x and y components of the force required to hold and the resultant force (pwater =1000 kg/m3, g = 9.81 m/s2)
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Figure Q6 shows the head (H) vs flow rate (Q) curves of a centrifugal pump at a certain condition where the pump operating flow rate is Q1 as shown in Figure Q6. However, the required flow rate is Q2. With the help of sketches or graphs, discuss possible solutions that can be applied to produce the required flow rate Q2.
3.4 Find the flow rate of water through the system shown for the turbine to produce 20 kW. Neglect friction in your calculations
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A centrifugal pump is used to pump a liquid with the properties given below. Liquid is pumped from a storage tank at 95 kPa (a) to a discharge tank at 300 kPa (a). The system configuration is given in the table below. Table 1: system configuration Suction Discharge 4 50 Length (m) Diameter (m) 0.07 0.055 12 90° bends (L/D-35) 5 T piece (L/D=7) Gate valve (L/D-35) 1 1 1 2 Static height (m) 25 Liquid density = 1100 kg.m³ Viscosity = 1.5 x 10-³ Pa.s Vapour pressure of the liquid = 25 kPa (a) Material of construction of pipe is commercial steel, ε = 000045 m Table 2: Pump data 0 10 20 30 40 Flowrate (m³.hr¹) Head (m) 55 56 51 36 6 NPSH (m) 0 2 6 11 19 22 3.1. Graphically determine the optimal operating point of the pump in the above system using the pump data in Table 2. 3.2. Determine the NPSH of the system and determine whether the pump will cavitate when used in the above system.
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