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A pump is required to deliver 50 gpm (0.003155 m³/s) of water at 25°C f head difference AH of 2.75 m. (a) Select a suitable pipe size, schedule 40, using Table D.1 and Table (b) Select a suitable pump impeller from Figure D.1 and determine ti suction head required NPSHR. (c) Neglecting frictional effects, determine where the pump inlet should b level of water in the tank shown in Figure 1. The water surface is exposed to atmospheric pressure. Take the water density (p) to be 1000 kg/m³. TABLE D.1 Pipe dimensions. Nominal Outside Diameter Inside Diameter in. (ft) cm Schedule Flo ft? Diameter ft cm 40 (std) 0.02242 80 (xs) 0.01792 1/8 0.00039 0.405 (0.03375) 1.029 0.683 0.547 0.00025 0.540 (0.045) 0.03033 0.02517 0.924 0.768 1/4 1.372 40 (std) 80 (xs) 0.00072 0.00049 0.675 (0.05625) 3/8 1.714 40 (std) 0.04108 80 (xs) 1.252 0.00132 1.074 0.00097. 0.03525 1.580 0.00211 1.386 0.00162 1.178 0.00117 0.640 0.00034 1/2 2.134 40 (std) 0.05183 80 (xs) 0.04550 160 (Xxs) 0.02100 0.840 (0.070) 0.03867 3/4 1.050 (0.0875) 2.667 40 (std) 0.06867 80 (xs) 160 (xxs) 0.03617 2.093 0.00370 1.883 0.06183 0.05100 0.00300 1.555 0.00204 1.103 0.00102 40 (std) 0.08742 80 (xs) 160 (Xxs) 0.04992 1 1.315 (0.1095) 3.340 0.07975 0.06792 2.664 0.00600 2.430 0.00499 2.070 0.00362 1.522 0.00195 14 1.660 (0.1383) 40 (std) 0.1150 80 (xs) 160 (Xxs) 0.07467 4.216 3.504 3.246 2.946 2.276 0.01039 0.00890 0.00733 0.00437 0.1065 0.09667 0124 L000 0.01

A pump is required to deliver 50 gpm (0.003155 m³/s) of water at 25°C f head difference AH of 2.75 m. (a) Select a suitable pipe size, schedule 40, using Table D.1 and Table (b) Select a suitable pump impeller from Figure D.1 and determine ti suction head required NPSHR. (c) Neglecting frictional effects, determine where the pump inlet should b level of water in the tank shown in Figure 1. The water surface is exposed to atmospheric pressure. Take the water density (p) to be 1000 kg/m³. TABLE D.1 Pipe dimensions. Nominal Outside Diameter Inside Diameter in. (ft) cm Schedule Flo ft? Diameter ft cm 40 (std) 0.02242 80 (xs) 0.01792 1/8 0.00039 0.405 (0.03375) 1.029 0.683 0.547 0.00025 0.540 (0.045) 0.03033 0.02517 0.924 0.768 1/4 1.372 40 (std) 80 (xs) 0.00072 0.00049 0.675 (0.05625) 3/8 1.714 40 (std) 0.04108 80 (xs) 1.252 0.00132 1.074 0.00097. 0.03525 1.580 0.00211 1.386 0.00162 1.178 0.00117 0.640 0.00034 1/2 2.134 40 (std) 0.05183 80 (xs) 0.04550 160 (Xxs) 0.02100 0.840 (0.070) 0.03867 3/4 1.050 (0.0875) 2.667 40 (std) 0.06867 80 (xs) 160 (xxs) 0.03617 2.093 0.00370 1.883 0.06183 0.05100 0.00300 1.555 0.00204 1.103 0.00102 40 (std) 0.08742 80 (xs) 160 (Xxs) 0.04992 1 1.315 (0.1095) 3.340 0.07975 0.06792 2.664 0.00600 2.430 0.00499 2.070 0.00362 1.522 0.00195 14 1.660 (0.1383) 40 (std) 0.1150 80 (xs) 160 (Xxs) 0.07467 4.216 3.504 3.246 2.946 2.276 0.01039 0.00890 0.00733 0.00437 0.1065 0.09667 0124 L000 0.01

Elements Of Electromagnetics
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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A pump is required to deliver 50 gpm (0.003155 m³/s) of water at 25°C from a tank at a head difference AH of 2.75 m. (a) Select a suitable pipe size, schedule 40, using Table D.1 and Table D.2. (b) Select a suitable pump impeller from Figure D.1 and determine the net positive suction head required NPSHR. (c) Neglecting frictional effects, determine where the pump inlet should be with respect to the level of water in the tank shown in Figure 1. The water surface is exposed to atmospheric pressure. Take the water density (p) to be 1000 kg/m³. TABLE D.1 Pipe dimensions. Nominal Diameter Outside Diameter Inside Diameter Flow Area in. (ft) cm Schedule ft cm ft2 cm 40 (std) 0.02242 0.01792 80 (xs) 1/8 0.405 (0.03375) 1.029 0.683 0.547 0.0002522 0.235 0 0.0003947 0.366 4 0.03033 0.02517 1.372 0.924 0.768 0.0004974 0.463 2 1/4 0.540 (0.045) 40 (std) 80 (xs) 0.0007227 0.670 6 3/8 0.675 (0.05625) 1.714 40 (std) 0.04108 80 (xs) 0.03525 1.074 0.0009759 0.905 9 0.840 (0.070) 1/2 2.134 40 (std) 0.05183 80 (xs) 0.04550 160 (Xxs) 0.02100 0.002110 1.961 1.386 0.001626 1.508 1.178 0.001174 1.090 0.640 0.0003464 0.321 7 0.03867 3/4 1.050 (0.0875) 40 (std) 0.06867 80 (xs) 160 (Xxs) 0.03617 2.667 2.093 0.003703 3.441 1.883 1.555 0.002043 1.898 1.103 0.001027 0.955 5 0.06183 0.05100 0.003003 2.785 40 (std) 0.08742 80 (xs) 160 (Xxs) 0.04992 1.315 (0.1095) 2.664 0.006002 5.574 2.430 0.004995 5.083 2.070 0.003623 3.365 1.522 0.001957 1.815 1 3.340 0.07975 0.06792 14 40 (std) 0.1150 80 (xs) 160 (Xxs) 0.07467 1.660 4.216 3.504 0.01039 3.246 0.008908 8.275 2.946 0.007339 6.816 2.276 0.004379 4.069 9.643 0.1065 0.09667 (0.1383) 1/2 40 (std) 0.1342 80 (xs) 160 (Xxs) 0.09167 1.900 (0.1583) 4.826 4.090 0.01414 13.13 0.1250 0.1115 3.810 0.01227 11.40 3.398 0.009764 9.068 2.794 0.007700 6.131 2.375 (0.1979) 40 (std) 0.1723 80 (xs) 0.1616 160 (xxs) 0.1253 2 6.034 5.252 0.02330 21.66 4.926 0.02051 19.06 4.286 0.01552 14.43 3.820 0.01232 11.46 0.1406
Transcribed Image Text:A pump is required to deliver 50 gpm (0.003155 m³/s) of water at 25°C from a tank at a head difference AH of 2.75 m. (a) Select a suitable pipe size, schedule 40, using Table D.1 and Table D.2. (b) Select a suitable pump impeller from Figure D.1 and determine the net positive suction head required NPSHR. (c) Neglecting frictional effects, determine where the pump inlet should be with respect to the level of water in the tank shown in Figure 1. The water surface is exposed to atmospheric pressure. Take the water density (p) to be 1000 kg/m³. TABLE D.1 Pipe dimensions. Nominal Diameter Outside Diameter Inside Diameter Flow Area in. (ft) cm Schedule ft cm ft2 cm 40 (std) 0.02242 0.01792 80 (xs) 1/8 0.405 (0.03375) 1.029 0.683 0.547 0.0002522 0.235 0 0.0003947 0.366 4 0.03033 0.02517 1.372 0.924 0.768 0.0004974 0.463 2 1/4 0.540 (0.045) 40 (std) 80 (xs) 0.0007227 0.670 6 3/8 0.675 (0.05625) 1.714 40 (std) 0.04108 80 (xs) 0.03525 1.074 0.0009759 0.905 9 0.840 (0.070) 1/2 2.134 40 (std) 0.05183 80 (xs) 0.04550 160 (Xxs) 0.02100 0.002110 1.961 1.386 0.001626 1.508 1.178 0.001174 1.090 0.640 0.0003464 0.321 7 0.03867 3/4 1.050 (0.0875) 40 (std) 0.06867 80 (xs) 160 (Xxs) 0.03617 2.667 2.093 0.003703 3.441 1.883 1.555 0.002043 1.898 1.103 0.001027 0.955 5 0.06183 0.05100 0.003003 2.785 40 (std) 0.08742 80 (xs) 160 (Xxs) 0.04992 1.315 (0.1095) 2.664 0.006002 5.574 2.430 0.004995 5.083 2.070 0.003623 3.365 1.522 0.001957 1.815 1 3.340 0.07975 0.06792 14 40 (std) 0.1150 80 (xs) 160 (Xxs) 0.07467 1.660 4.216 3.504 0.01039 3.246 0.008908 8.275 2.946 0.007339 6.816 2.276 0.004379 4.069 9.643 0.1065 0.09667 (0.1383) 1/2 40 (std) 0.1342 80 (xs) 160 (Xxs) 0.09167 1.900 (0.1583) 4.826 4.090 0.01414 13.13 0.1250 0.1115 3.810 0.01227 11.40 3.398 0.009764 9.068 2.794 0.007700 6.131 2.375 (0.1979) 40 (std) 0.1723 80 (xs) 0.1616 160 (xxs) 0.1253 2 6.034 5.252 0.02330 21.66 4.926 0.02051 19.06 4.286 0.01552 14.43 3.820 0.01232 11.46 0.1406
Heptan he 39-78 Table D.2 Economic Velocity Range Fluid ft/s m/s Acetone Ethyl Alcohol Methyl Alcohol Propyl Alcohol Benzene Carbon Disulfide Carbon Tetrachloride Castor Oil Chloroform 4.9-9.8 4.8-9.6 4.8-9.6 4.7–9.4 4.6-9.2 4.2–8.4 1.5-3.0 1.5-3.0 1.5-3.0 1.4-2.8 1.4-2.8 1.3-2.6 1.2-2.4 05-10 51.0 1.6-3.2 4.0-8.0 4.9-9.8 5.0-10.0 3.9-7.8 4.0-8.0 1.4-2.8 5.1-10.2 Pecane Ether Ethylene Glycol R-11 1.2-2.4 1.2-2.4 0.43-0.86 1.5-3.0 1.6-3.2 1.4-2.8 15-3.0 0,64-1.3 1.5-3.0 1.7-3.4 1.7-3.4 1.4-2.8 1.4-2.8 1.4-2.8 Hexane Kerosene Linseed Oil 49-98 2.1-4.2 5.0-10.0 5.6-11.2 5.5-11.0 4.5-9.0 4.6-9.2 4.4-8.8 Mercury Octane Propane Propylene Propylene Glycol Turpentine Water Capacity Curves Based on water at 70°F (22°C) Model: TF-C114 60 Hz 1750 RPM Size: 1-1/2 x 1-1/2 x 4 CUBIC METERS PER HOUR 15 20 20 40 OIMPELLER DIAMETER (INCHESI 3.75 5 15 35 -3 25 10 30 -275 10 20 30 40 50 60 70 80 90 100 US GALLONS PER MINUTE CUBIC METERS PER HOUR 10 15 20 30 20 10 FEET NPSHR METERS 10 20 30 40 50 60 70 80 90 100 US GALLONS PER MINUTE NOTES: 1 Impeller diameters avalable in 1/4 inch increments 4 Kgicm - Head in Meters X Specific Gravity O HP x0.746 - Kw 10 2) NPSHR is shown for maximum impeller diameter (3 PSI - Head n Feet X Specific Gravity 2.3 FEET HEAD IN FEET 3 HEAD IN METERSS O METERS
Transcribed Image Text:Heptan he 39-78 Table D.2 Economic Velocity Range Fluid ft/s m/s Acetone Ethyl Alcohol Methyl Alcohol Propyl Alcohol Benzene Carbon Disulfide Carbon Tetrachloride Castor Oil Chloroform 4.9-9.8 4.8-9.6 4.8-9.6 4.7–9.4 4.6-9.2 4.2–8.4 1.5-3.0 1.5-3.0 1.5-3.0 1.4-2.8 1.4-2.8 1.3-2.6 1.2-2.4 05-10 51.0 1.6-3.2 4.0-8.0 4.9-9.8 5.0-10.0 3.9-7.8 4.0-8.0 1.4-2.8 5.1-10.2 Pecane Ether Ethylene Glycol R-11 1.2-2.4 1.2-2.4 0.43-0.86 1.5-3.0 1.6-3.2 1.4-2.8 15-3.0 0,64-1.3 1.5-3.0 1.7-3.4 1.7-3.4 1.4-2.8 1.4-2.8 1.4-2.8 Hexane Kerosene Linseed Oil 49-98 2.1-4.2 5.0-10.0 5.6-11.2 5.5-11.0 4.5-9.0 4.6-9.2 4.4-8.8 Mercury Octane Propane Propylene Propylene Glycol Turpentine Water Capacity Curves Based on water at 70°F (22°C) Model: TF-C114 60 Hz 1750 RPM Size: 1-1/2 x 1-1/2 x 4 CUBIC METERS PER HOUR 15 20 20 40 OIMPELLER DIAMETER (INCHESI 3.75 5 15 35 -3 25 10 30 -275 10 20 30 40 50 60 70 80 90 100 US GALLONS PER MINUTE CUBIC METERS PER HOUR 10 15 20 30 20 10 FEET NPSHR METERS 10 20 30 40 50 60 70 80 90 100 US GALLONS PER MINUTE NOTES: 1 Impeller diameters avalable in 1/4 inch increments 4 Kgicm - Head in Meters X Specific Gravity O HP x0.746 - Kw 10 2) NPSHR is shown for maximum impeller diameter (3 PSI - Head n Feet X Specific Gravity 2.3 FEET HEAD IN FEET 3 HEAD IN METERSS O METERS
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