Consider a piston/cylinder filled with an air. First, heat is supplied to the air to increase temperature from T₁ to T2,

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Consider A Piston Cylinder Filled With An Air First Heat Is Supplied To The Air To Increase Temperature From T To T2 1 (56.69 KiB) Viewed 29 times

Consider a piston/cylinder filled with an air. First, heat is supplied to the air to increase temperature from T₁ to T2, while the volume does not change. Then, through an isentropic expansion the temperature of air becomes T₁. Next, through an isothermal compression the state of air returns to the initial state. a) (6 points) Present the cycle in P – v and T - s diagram. - b) (9 points) Prove that the efficiency of the cycle can be presented as below. T₁ T₂ η = 1- 777 · ln T₂ - T₁ T1₁