The corporate vice president of the company that employs you needs to know what the entropy production and the heat transfer rates are in a newly designed valve that has been designed to control the flow of saturated liquid ammonia.
At the normal flow rate 0.55 kg/s, the minor loss coefficient of the valve is 18.3, and the inlet and outlet oil temperatures are 3.00 and 19.0°C, respectively.
The surface temperature of the valve is constant at 20.0°C. Under normal conditions, the flow velocity through the valve is constant at 7.50 m/s.
Write and solve a thermodynamics problem that gives your corporate vice president the answers to his questions.