Suppose 0.730 kg/s of oil at 1.20 MPa and 20.0°C enters a system at 8.00 m/s and exits the system at 0.800 MPa, 40.0°C, and 4.00 m/s. The exit is 4.00 m below the inlet.
The specific weight of the oil is 6000. N/m3 , which is a constant throughout the system. The specific heat of the oil is constant at 1.21 kJ/(kg · K). Determine
(a) the heat transfer rate and
(b) the entropy production rate of this system if its boundary temperature is maintained constant at 40.0°C.