Answered: 20 cm × 25 cm 10 m/s 45 cm x 35 cm 10…

Engineering

Civil Engineering

20 cm × 25 cm 10 m/s 45 cm x 35 cm 10 m/s 20 cm x 25 cm Problem 8.26

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter7: Length And Length-related Variables In Engineering

Section: Chapter Questions

Problem 42P

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Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

Consider the duct system shown in the accompanying figure. Air flows through two 20 cm by 25 cm ducts that merge into a 45 cm by 35 cm duct. The average speed of the air in each of the 20 cm×25 cm ducts is 10 m/s. What is the volume flow rate of air in the 45 cm×35 cm duct? Express the volume flow rate in m³ ⁄s . What is the average speed of air in the 45 cm×35 cm duct?

20 cm × 25 cm
10 m/s
45 cm x 35 cm
10 m/s
20 cm x 25 cm
Problem 8.26

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