Answer ALL parts (a) - (c). (a) Diesel fuel flows along a pipe 6 m long, whose bore (internal diameter) is 5 mm. The density and viscosity of the fuel are 850 kg/m³ and 1.8 x 10-³ Ns/m² respectively. If the pressure-drop over the length of the pipe 1.3 kN/m², estimate the volume flow rate of fuel along the pipe. (Hint: since the bore is small, assume the flow is laminar and use Poiseuille's equation to find the flow rate. Then find the flow velocity, and hence the Reynolds number, to check that the flow is indeed laminar.) (b) Hot water at 50°C is flowing along a pipe 800 mm diameter at a mean speed of 2.3 m/s. At this temperature the kinematic viscosity of the water is v=5.55x107 m²/s. Will the flow be laminar or turbulent?

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
icon
Related questions
Question

first 2 parts please

 

A2
Answer ALL parts (a)-(c).
Diesel fuel flows along a pipe 6 m long, whose bore (internal diameter) is 5
mm. The density and viscosity of the fuel are 850 kg/m³ and 1.8 x 10-³ Ns/m²
respectively. If the pressure-drop over the length of the pipe 1.3 kN/m²,
estimate the volume flow rate of fuel along the pipe. (Hint: since the bore is
small, assume the flow is laminar and use Poiseuille's equation to find the
flow rate. Then find the flow velocity, and hence the Reynolds number, to
check that the flow is indeed laminar.)
(a)
(b)
(c)
Hot water at 50°C is flowing along a pipe 800 mm diameter at a mean speed
of 2.3 m/s. At this temperature the kinematic viscosity of the water is
v=5.55x10-7 m²/s. Will the flow be laminar or turbulent?
Water at 12°C is supplied to a 40 mm diameter steel pipe at 9 bar gauge
pressure. The pipe is 125 m long, the roughness is k = 0.02 mm, and at the
end of the pipe the water is discharged to atmosphere. Estimate the
flow rate of the water and state your assumptions.
(Kinematic viscosity for the water is v= 1.22 x 10-6 m²/s).
Transcribed Image Text:A2 Answer ALL parts (a)-(c). Diesel fuel flows along a pipe 6 m long, whose bore (internal diameter) is 5 mm. The density and viscosity of the fuel are 850 kg/m³ and 1.8 x 10-³ Ns/m² respectively. If the pressure-drop over the length of the pipe 1.3 kN/m², estimate the volume flow rate of fuel along the pipe. (Hint: since the bore is small, assume the flow is laminar and use Poiseuille's equation to find the flow rate. Then find the flow velocity, and hence the Reynolds number, to check that the flow is indeed laminar.) (a) (b) (c) Hot water at 50°C is flowing along a pipe 800 mm diameter at a mean speed of 2.3 m/s. At this temperature the kinematic viscosity of the water is v=5.55x10-7 m²/s. Will the flow be laminar or turbulent? Water at 12°C is supplied to a 40 mm diameter steel pipe at 9 bar gauge pressure. The pipe is 125 m long, the roughness is k = 0.02 mm, and at the end of the pipe the water is discharged to atmosphere. Estimate the flow rate of the water and state your assumptions. (Kinematic viscosity for the water is v= 1.22 x 10-6 m²/s).
Expert Solution
steps

Step by step

Solved in 5 steps with 7 images

Blurred answer
Knowledge Booster
Properties of Fluids
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY