Concept explainers
(a)
To find: the length of the pipe by using given information.
Answer to Problem 9.105P
The value of length of the pipe is determined below.
Explanation of Solution
Given information:
First convert the pressure we get
Then convert the temperature we get
Convert 1400 to°C we get
Then
Find the density of natural gas which is mostly comprised of methane
Substitute above values we get
Convert diameter from in to m
Then
Find the area of the pipe
Find the velocity of natural gas in the pipe
We know that
And then formula for Reynolds number for flow of natural gas
Find the friction factor of the pipe
Find the mach number
Find the value of
Find the pressure ratio by using below formula
And then find the temperature ratio we get
Find the new pressure ratio we get
Find the new mach number by using below formula
Find the value of
Find the change in length of the pipe
Substitute above values we get
Convert the units we get
(b)
Find the temperature at that point by using given information.
Answer to Problem 9.105P
The value of temperature is determined below.
Explanation of Solution
Find the temperature ratio we get
Find the final temperature we get
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Chapter 9 Solutions
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