Analyzing Internally Reversible Flow ProcessesAn air
Chapter 6, Problem 173P(choose chapter or problem)
An air compressor operates at steady state with air entering at \(p_{1}=15 \mathrm{\ lbf} / \mathrm{in} .{ }^{2}, \ T_{1}=60^{\circ} \mathrm{F}\). The air undergoes a polytropic process, and exits at \(p_{2}=75 \mathrm{\ lbf} / \mathrm{in} .^{2}, \ T_{2}=294^{\circ} \mathrm{F}\). (a) Evaluate the work and heat transfer, each in Btu per lb of air flowing. (b) Sketch the process on p–y and T–s diagrams and associate areas on the diagrams with work and heat transfer, respectively. Assume the ideal gas model for air and neglect changes in kinetic and potential energy.
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