Determine the exergy destruction rate (kw) associated with each of the processes in Problem 3 if the mass flow rate of water is 2.5 kg/s, heat is supplied by an 1100 K energy reservoir, and heat is rejected to a river at 303 K (16 points).

Problem 3 and 2 are below

3. For problem 2, reconsider the case where the isentropic efficiency of the turbine is 87%. (a) Determine the thermal efficiency (%) for this cycle (6 points) and (b) sketch a T-s diagram (3 points).

2. Consider the simple ideal Rankine power cycle operating between the pressure limits of 10 kPa and 6 MPa. For the steam exiting the boiler at 500 °C, (a) draw a schematic of the system (2 points), (b) determine the net work (kJ/kg) (6 points), (c) determine the thermal efficiency (%) (5 points), and (d) sketch a T-s diagram of the cycle (2 points).