Water vapor at 300 C, 35 bars (state 1) expands to 5.0 bars (state 2) using an adiabatic throttling valve. The ambient is at T = 25 C, 1 bar.
a. Simplify the energy conservation and availability balance equation for the current problem.
b. Calculate the exergy in kJ/kg at states 1 and 2.
c. Estimate the optimum work and irreversibility in KW if the mass flow is 20 kg/sec.