Forming Mixtures
Carbon dioxide (CO2) at 100°F, 18 lbf/in.2 and a volumetric flow rate of 250 ft3/min enters an insulated control volume operating at steady state and mixes with oxygen (O2) entering as a separate stream at 190°F, 18 lbf/ in.2 and a mass flow rate of 60 lb/min. A single mixed stream exits at 15 lbf/in.2 Kinetic and potential energy effects can be ignored. Using the ideal gas model with constant specific heats, determine for the control volume
(a) the temperature of the exiting mixture, in °F.
(b) the rate of entropy production, in Btu/min.°R.
(c) the rate of exergy destruction, in Btu/min, for T0 = 40°F.
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