Steam undergoes an isentropic expansion process at 80 bar, 440°C enters a piston-cylinder assembly operating at steady state with mass flow rate 20 kg/s. It exits with a pressure of 0.7 bar and a quality of 95%, assume the process is adiabatic, neglect kinetic and potential energy. a. Determine the final temperature.
b. Determine the power developed in kW.
c. Plot T-s diagram

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

On a average work day more than work place firs are reorted

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.