homework question 9 4 71 separate streams of air and water flow throug
Homework Question 9:
4.71 Separate streams of air and water flow through the compressor and heat exchanger
arrangement shown in Fig. P4.71. 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.
The air is modeled as an ideal gas. Determine
a. the total power required by both compressors, in kW.
b. the mass flow rate of the water, in kg/s.
P₁ = 1 bar
. T₁ = 300 K
m₁ = 0.6 kg/s
P₂=3 bar +2
FIGURE P 4.71
T5 = 20°C
Ps= 1 bar
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