Question 12 25 pts Problem Solving: Solve the problem below. Use 2 decimal places for your final answers. In a combined flash-binary geothermal power plant, saturated liquid at 230 °C is withdrawn from the production well at a rate of 220 kg/s and is flashed to a pressure of 500 kPa. The condenser pressure is 10 kPa. The liquid exiting the separator passes through a heat exchanger that serves as the heat source in a binary cycle that uses isobutane. The geothermal liquid exits the heat exchanger at 90°C. Isobutane enters the turbine at 3.25 MPa and 145ºC and leaves at 400 kPa and 80°C. Sketch the schematic and T-s diagrams. Also, determine the thermal efficiency of the combined geothermal power plant. Determine the following: 1. Mass flowrate of saturated vapor in kg/s 2. Mass flowrate of isobutane in kg/s 3. Power of steam turbine in kW 4. Net power of the binary cycle in kW 5. Thermal Efficiency of the combined plant in %