You are a new engineer at a small paper making company. The company's chief engineer wants to install a new drum dryer that produces heat at a rate of 500,000 Btu/h with a drum surface temperature of 175°F.
The factory has a steam boiler and can produce saturated vapor at any desired pressure and flow rate. Write and solve a thermodynamics problem that satisfies the chief engineer's needs.
Choose a steam mass flow rate and inlet conditions, then determine the exit quality and the entropy production rate of the dryer.