Problem 1) (12 points) A mixing tank with two inlets and one outlet, initially contains 75 Liters of water. After 20 minutes there is 675 Liters of water inside the tank. If one of the inlets delivers twice the mass flow rate of the other inlet, and the outlet mass flow rate is 1 kg/s, determine the mass flow rate for each of the inlets in kg/s. Consider density of the water to be 1000 kg/m³
Problem 2) (23 points) Water vapor at 2 bar and 160°C enters a well-insulated compressor operating at steady state with a mass flow 3 kg/s. The exit pressure and temperature are 6 bar and 200°C respectively. Kinetic and potential energy changes from inlet to exit can be neglected. Determine:
a) Specific volume of water vapor at the exit [m³/kg]
b) Specific enthalpy of water vapor at inlet and outlet [kJ/kg]
c) Volumetric flow rate of the water vapor at the exit [m³/s]
d) Compressor power [kW]
