Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Chapter 4, Problem 4.73P
To determine
The mass flow rate of the helium.
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Figure P4.15 provides steady-state data for air flowing through a rectangular duct. Assuming ideal gas
behavior for the air, determine the inlet volumetric flow rate, in ft³/s, and inlet mass flow rate, lb/s. If you
can determine the volumetric flow rate and mass flow rate at the exit, evaluate them. If not, explain why.
1
T
4 in.
Air
V₁=3 ft/s
T₁ = 95°F
P₁ = 16 lbf/in.²
6 in.
P₂ = 15 lbffin.²
Two separate streams of air and steam flow through a compressor system and a heat exchanger, as shown in the figure. The diagram provides steady state operating data for this system. The transfer of heat with the surroundings can be neglected, as well as the effects of kinetic and potential energy. Air can be considered an ideal gas. Decide:a) The total power generated by both compressors: kW
b) The mass flow of water: kg/s
4.105 Separate streams of steam and air flow through the tur-
bine and heat exchanger arrangement shown in Fig. P4.105.
Steady-state operating data are provided on the figure. Heat
transfer with the surroundings can be neglected, as can all
kinetic and potential energy effects. Determine (a) T3, in K,
and (b) the power output of the second turbine, in kW.
W = 10,000 kW
Wr2= 1
Turbine
Turbine
P3= 10 bar
T = ?
T2= 400°C
P2= 10 barl
T=240°C
P4 = 1 bar
Steam
www
www
in
1.
T= 600°C
P= 20 bar
Ts= 1500 K
5 Pz=1.35 bar
m = 1500 kg/min
Heat exchanger
VT.= 1200 K
P6=1 bar
Air in
Fig 4.105
Chapter 4 Solutions
Fundamentals Of Engineering Thermodynamics
Ch. 4 - Prob. 4.1ECh. 4 - Prob. 4.2ECh. 4 - Prob. 4.3ECh. 4 - Prob. 4.4ECh. 4 - Prob. 4.5ECh. 4 - Prob. 4.6ECh. 4 - Prob. 4.7ECh. 4 - Prob. 4.8ECh. 4 - Prob. 4.9ECh. 4 - Prob. 4.10E
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