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The air standard Ericsson cycle (see Figure 13.40) is made up of an isothermal compressor (T2 = T3 = TL), an isothermal prime mover (T1 = T4 = TH), and an isobaric regenerator (p1 = p2 and p3 = p4).

Show that the compressor and prime mover must have identical pressure ratios, that is, p2/p3 = p1/p4, and show that this also requires that v3/v2 = v4/v1.

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