As shown in the figure, air with a volumetric flow rate of 15,000 ft/min enters an air-handling unit at 80°F, 1 atm. The air-handling unit delivers air at 45°F, 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 13 ft/s. Assume steady state operation and ideal gas behavior for the air. f Dq = 50 in. Duct Tz = T3 = T1 = 45°F D; = D; = 26 in. V2 = V3 system Air-handling unit 1+ Pi = P2 = P3 = P4 = 1 atrm T; = B0°F (AV), Determine the mass flow rate of air entering the air-handling unit, in Ib/s, the volumetric flow rate in each 26-in. duct, in ft3/min, and the velocity in the 50-in. duct, in ft/s.
As shown in the figure, air with a volumetric flow rate of 15,000 ft/min enters an air-handling unit at 80°F, 1 atm. The air-handling unit delivers air at 45°F, 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 13 ft/s. Assume steady state operation and ideal gas behavior for the air. f Dq = 50 in. Duct Tz = T3 = T1 = 45°F D; = D; = 26 in. V2 = V3 system Air-handling unit 1+ Pi = P2 = P3 = P4 = 1 atrm T; = B0°F (AV), Determine the mass flow rate of air entering the air-handling unit, in Ib/s, the volumetric flow rate in each 26-in. duct, in ft3/min, and the velocity in the 50-in. duct, in ft/s.
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:As shown in the figure, air with a volumetric flow rate of 15,000 ft/min enters an air-handling unit at 80°F, 1 atm. The air-handling
unit delivers air at 45°F, 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 13 ft/s. Assume steady state operation and ideal gas behavior for the air.
A
D4 = 50 in.
Duct
system
T2 = T3 = T1 = 45°F
D; = D; = 26 in.
Vz = V3
Air-handling unit
1+ P = P2 = P3 = P4 = 1 atm
T = B0°F
(AV),
Determine the mass flow rate of air entering the air-handling unit, in Ib/s, the volumetric flow rate in each 26-in. duct, in ft3/min, and
the velocity in the 50-in. duct, in ft/s.
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