Assume a car's exhaust system an be approximated as pipe that is 14 feet long with a diameter of 0.125 ft and is cast-iron (roughness of ɛ=0.00085 feet). This pipe also has six 90° flanged elbows (each with KL=0.3) and a muffler (KL=8.5). (MIDAS (1) KLel = 0.3 Determine the pressure at the beginning of the exhaust system if the flowrate is 0.10 cubic feet per second or ft/sec, the termperature of the air is 250°F and the exhaust has the same properties as air. Useful values: R= 1716 ft-lbf/slug.OR Viscosity of air at 250°F is 4.7x10-7 Ibf-s/ft2 Density of air at 250°F is 1.74x10-3 slug/ft3 What is the Reynolds number for this flow? What is the velocity in ft/s of the air in the exhaust? What is the gauge pressure at P1 in Ibf/ft?

Assume a car's exhaust system an be approximated as pipe that is 14 feet long with a diameter of 0.125 ft and is cast-iron (roughness of ɛ=0.00085 feet). This pipe also has six 90° flanged elbows (each with KL=0.3) and a muffler (KL=8.5). (MIDAS (1) KLel = 0.3 Determine the pressure at the beginning of the exhaust system if the flowrate is 0.10 cubic feet per second or ft/sec, the termperature of the air is 250°F and the exhaust has the same properties as air. Useful values: R= 1716 ft-lbf/slug.OR Viscosity of air at 250°F is 4.7x10-7 Ibf-s/ft2 Density of air at 250°F is 1.74x10-3 slug/ft3 What is the Reynolds number for this flow? What is the velocity in ft/s of the air in the exhaust? What is the gauge pressure at P1 in Ibf/ft?

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Description: Assume a car's exhaust system an be approximated as pipe that is 14 feet long with a diameter of 0.125 ft and is cast-iron (roughness of ɛ=0.00085 feet). This pipe alsohas six 90° flanged elbows (each with KL=0.3) and a muffler (KL=8.5).MIDASK =8,52

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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Question

Assume a car's exhaust system an be approximated as pipe that is 14 feet long with a diameter of 0.125 ft and is cast-iron (roughness of ɛ=0.00085 feet). This pipe also
has six 90° flanged elbows (each with KL=0.3) and a muffler (KL=8.5).
MIDAS
K =8,52)
(1)
KLel = 0.3
Determine the pressure at the beginning of the exhaust system if the flowrate is 0.10 cubic feet per second or ft/sec, the termperature of the air is 250°F and the
exhaust has the same properties as air.
Useful values:
R = 1716 ft-lbf/slug-OR
Viscosity of air at 250°F is 4.7x10-7 Ibf-s/ft2
Density of air at 250°F is 1.74x10-3 slug/ft3
What is the Reynolds number for this flow?
What is the velocity in ft/s of the air in the exhaust?
What is the gauge pressure at P1 in Ibf/ft?

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