An uninsulated, warp drive steam turbine on a Romulan battle cruiser has a surface temperature of 200.°F. It produces 50.0 hp with a steam mass flow rate of 150. lbm/min.
The inlet steam is at 400.°F, 100. psia, and it exits at 16.0 psia, 90.0% quality. Determine
a. The heat transfer rate from the engine.
b. The entropy production rate of the engine.
c. Show whether the Romulans have discovered how to build steam engines that violate the second law of thermodynamics.