Duct Pressure Drop: Determine the pressure drop, in inches of H20, for 300 feet of 12" diameter duct with 600 CFM of air flow. If the size is reduced to 10", what is the pressure drop? If the duct is instead changed to a rectangular duct 10"x14", what is the pressure drop?
Duct Pressure Drop: Determine the pressure drop, in inches of H20, for 300 feet of 12" diameter duct with 600 CFM of air flow. If the size is reduced to 10", what is the pressure drop? If the duct is instead changed to a rectangular duct 10"x14", what is the pressure drop?
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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Transcribed Image Text:Duct Pressure Drop: Determine the pressure drop, in inches of H20, for 300 feet of 12"
diameter duct with 600 CFM of air flow. If the size is reduced to 10", what is the pressure
drop? If the duct is instead changed to a rectangular duct 10"x14", what is the pressure
drop?.
Duct sizing: When reviewing the mechanical plans for an office building, you notice that
the ME has run an 18" diameter duct above a ceiling where you know there is a beam
obstruction. You determine that there is a maximum of 12" of space between the top of
the ceiling and the bottom of the beam. If this duct carries 2,000 CFM, determine the
equivalent rectangular size of ducting that you would propose the engineer, so that the
pressure drop remains similar. What is the resultant velocity (FPM) in both the round
duct and the rectangular duct?
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