Question

Problem1. A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device starts and goes through a Carnot cycle and generates 500.3 kJ work. If the maximum temperature that water will reach is 1.5 times the minimum temperature of water and during heat rejection process, water goes from saturated vapor to saturated liquid phase. Find: 1. QH & QL for this cycle (10 points). 2. TH & TL for this cycle (10 points). 3. Maximum and minimum pressures that the cycle will reach (20 points). 4. Show this process on a T-v diagram and label temperature, pressures and specific volumes. (To get full points, your states, and your processes should be accurately placed in relation to isobaric lines and vapor dome) (10 points). 5. The expansion and compression of water in this device are quasi-equilibrium processes, EXPLAIN why this process delivers the highest amount of work (5 points). 6. Find the pressure at remaining state(s) (Bonus 5 points)

Answer 1