Calculate the exergy of the water at the initial and final states in Problem 6.130 and the irreversibility of the process.
Problem 6.130
A piston/cylinder contains 1 kg water at 150 kPa, 20?C. The piston is loaded, so the pressure is linear in volume. Heat is added from a 600?C source until the water is at 1 MPa, 500?C. Find the heat transfer and the entropy generation.