As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 30°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 16 ft/s. Assume steady state operation and ideal gas behavior for the air Step 1 M₁ = 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 ft/min, and the velocity in the 50-in duct, in ft/s Your answer is correct. Hint Step 2 Determine the mass flow rate of air entering the air-handling unit, in lb/s. Ib/s. 17.1467 ₂=y=1₁851 4-1₂-26 in V₁-V, Your answer is incorrect Determine the volumetric flow rate in each 26-in. duct, in ft/min. (AV) (AV- 6002 61 D-50 ba systom ! ft/min. 1+A+1+A=A1 700F (AV), Attempts: 1 of 4 used

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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T-2

As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 90°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 16 ft/s. Assume steady state operation and ideal gas behavior for the air
Step 1
M₁ =
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 ft/min, and
the velocity in the 50-in duct, in ft/s
Your answer is correct.
Hint
Step 2
Determine the mass flow rate of air entering the air-handling unit, in lb/s.
17.1467
Your answer is incorrect
1₂=y=1₁851
D-0₂-26 in
V₁-V₂
Ib/s.
(AV) (AV)$ 6002 61
Determine the volumetric flow rate in each 26-in. duct, in ft/min.
D-50
ban
system
! ft/min.
1+A=A+A=A
700
(AV),
Attempts: 1 of 4 used
Transcribed Image Text:As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 90°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 16 ft/s. Assume steady state operation and ideal gas behavior for the air Step 1 M₁ = 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 ft/min, and the velocity in the 50-in duct, in ft/s Your answer is correct. Hint Step 2 Determine the mass flow rate of air entering the air-handling unit, in lb/s. 17.1467 Your answer is incorrect 1₂=y=1₁851 D-0₂-26 in V₁-V₂ Ib/s. (AV) (AV)$ 6002 61 Determine the volumetric flow rate in each 26-in. duct, in ft/min. D-50 ban system ! ft/min. 1+A=A+A=A 700 (AV), Attempts: 1 of 4 used
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