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Water (at 20C) flows through a pipeline connected in series, as shown in the Figure. The construction material of the pipes is commercial steel. Diameters of the first and second pipe are 1¼ inch nominal (42.4/3.25 mm) and ¾ inch nominal (26.9/2.65 mm), respectively. No elevation difference exits in the system. If the pressures at point A and at point B are 12.63 mWH absolute and 10.33 mWH absolute, respectively, what is the volumetric flow rate in the pipeline? Neglect the contraction losses in the connection of two pipes. Note: Friction factor must be found from MOODY DIAGRAM. For simplification in the reading of Moody diagram, take relative roughness of each pipe as: E/D1=0.001 and E/D2=0.002 Figure Q2.1. Schematic illustration of the series-connected pipeline system. Figure Q2.2. Moody diagram

Water (at 20C) flows through a pipeline connected in series, as shown in the Figure. The construction material of the pipes is commercial steel. Diameters of the first and second pipe are 1¼ inch nominal (42.4/3.25 mm) and ¾ inch nominal (26.9/2.65 mm), respectively. No elevation difference exits in the system. If the pressures at point A and at point B are 12.63 mWH absolute and 10.33 mWH absolute, respectively, what is the volumetric flow rate in the pipeline? Neglect the contraction losses in the connection of two pipes. Note: Friction factor must be found from MOODY DIAGRAM. For simplification in the reading of Moody diagram, take relative roughness of each pipe as: E/D1=0.001 and E/D2=0.002 Figure Q2.1. Schematic illustration of the series-connected pipeline system. Figure Q2.2. Moody diagram

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Water (at 20C) flows through a pipeline connected in series, as shown in the Figure. The construction material of the pipes is commercial steel. Diameters of the first
and second pipe are 1¼ inch nominal (42.4/3.25 mm) and ¾ inch nominal
(26.9/2.65 mm), respectively. No elevation difference exits in the system. If the pressures
at point A and at point B are 12.63 mWH absolute and 10.33 mWH absolute,
respectively, what is the volumetric flow rate in the pipeline? Neglect the contraction
losses in the connection of two pipes.
Note: Friction factor must be found from MOODY DIAGRAM. For simplification in the
reading of Moody diagram, take relative roughness of each pipe as: E/D1=0.001 and
E/D2=0.002
Figure Q2.1. Schematic illustration of the series-connected pipeline system.
Figure Q2.2. Moody diagram

A B Lj=10m L2=10m D1 D2 Figure Q2.1. Schematic illustration of the series-connected pipeline system. 0.025 Laminar, /= Rough Pipes, = -3.6 log10 + (a) 6.9 1.11 0.02 0.018 0.05 0.04 0.016 0.03 0.014 0.02 0.012 0.015 0.01 0.01 0.008 0.006 0.008 0.004 0.007 0.006 0.002 0.001 0.0008 0.0006 0.005 Roughness Value, k Rivited steel: 5 mm Concrete: 2 mm Cast iron: 0.25 mm Galvanized steel: 0.15 mm Cast iron: 0.12 mm Steel: 0.045 mm Draw tubing: 0.0015 mm 0.004 0.0004 0.0002 0.003 5e-05 0.0025 Smooth Pipes, f = 0.079RE 1e-05 0.002 10 104 10 10 107 10 Reynolds Number, Und Figure Q2.2. Moody diagram Friction factor, f Relative Roughness, k/d
Transcribed Image Text:A B Lj=10m L2=10m D1 D2 Figure Q2.1. Schematic illustration of the series-connected pipeline system. 0.025 Laminar, /= Rough Pipes, = -3.6 log10 + (a) 6.9 1.11 0.02 0.018 0.05 0.04 0.016 0.03 0.014 0.02 0.012 0.015 0.01 0.01 0.008 0.006 0.008 0.004 0.007 0.006 0.002 0.001 0.0008 0.0006 0.005 Roughness Value, k Rivited steel: 5 mm Concrete: 2 mm Cast iron: 0.25 mm Galvanized steel: 0.15 mm Cast iron: 0.12 mm Steel: 0.045 mm Draw tubing: 0.0015 mm 0.004 0.0004 0.0002 0.003 5e-05 0.0025 Smooth Pipes, f = 0.079RE 1e-05 0.002 10 104 10 10 107 10 Reynolds Number, Und Figure Q2.2. Moody diagram Friction factor, f Relative Roughness, k/d
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