Asked by Marisca
A room measures 4.0 m by 3.9 m by 4.5 m. The heating and air-conditioning ducts to and from the room are circular with diameter 0.37 m and all the air in the room is to be exchanged every 14 min.
(a) What is the average flow rate?
m3/s
(b) What is the necessary flow speed in the duct? (Assume that the density of the air is constant.)
Answers
Answered by
drwls
(a) (Room volume)/(840 s) = ______ m^3/s
(b) (Flow rate)/(duct area)
(b) (Flow rate)/(duct area)
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