Yet another cycle is proposed in which energy is added at constant volume until the fluid achieves state 2, the gas is then expanded to its initial pressure (state 3) before being compressed isobarically back to its initial conditions (state 1). Show that the thermal efficiency of this cycle is
If the initial conditions are 27 °C and 1.0 bar, and the energy added is 2000 kJ/kg, calculate the thermal efficiency of the cycle. What is the specific work output of the cycle?
[35.4%; 708 kJ/kg]