Answered: Da-50 in. 3 + Duct system D2-D-26 in…

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

As shown in the figure, air with a volumetric flow rate of 14,000 ft³/min enters an air-handling unit at 80^oF, 1 atm. The air-handling unit delivers air at 45^oF, 1 atm to a duct system with three branches consisting of two 26-in.-diameter ducts and one 50-in. duct. The velocity in each 26-in. duct is 10 ft/s. Assume steady state operation and ideal gas behavior for the air.

Determine the mass flow rate of air entering the air-handling unit, in lb/s, the volumetric flow rate in each 26-in. duct, in ft³/min, and the velocity in the 50-in. duct, in ft/s.

Da-50 in.
3
+
Duct
system
D2-D-26 in
V2= V3
Air-handling unit
1-PP2 Pa= P4 = 1
T B0°F
(AV)

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