Question: 13- A reversible power cycle receives energy Qu from a reservoir at temperature TH and rejects Oc to a reservoir at temperature Tc. The

13- A reversible power cycle receives energy Qu from a reservoir at temperature TH and rejects Oc to a reservoir at temperature Tc. The

13- A reversible power cycle receives energy Qu from a reservoir at temperature TH and rejects Oc to a reservoir at temperature Tc. The work developed by the power cycle is used to rejects energy Ou to a reservoir at temperature TH. (a) Develop an expression for the ratio Qu / Qu in terms of the temperatures of the four reservoirs. Useful I data: Gas Y = C/C 1.4 Molar mass- M-, kg/k mol Air 28.97 32 1.4 en Butane (CH10) Nitrogen (N2) Methane (CH.) 58 1.1 28 1.4 16 1.32 Universal gas constant = 8.314 kJ / kmol. K 1 bar = 100 kPa For liquid water h = 4.18 *t, kJ/kg where t in C Water density 1000 kg/m %3D %3D

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