Arankine cycle utilizes heat from a geothermal source: hence, steam is only available at 550f and 900 psia into the turbine, whose efficiency is 95%. the condenser pressure is 4 psia, the pump efficiency is 82% and there is a 100 psia pressure drop across the boiler. a) determine the enthalpies at the all states b) determine the cycle efficiency

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.