Combustion gases flow into a boiler (non-mixing, insulated from the surroundings) at 2000k, 1 bar. there is no pressure loss on the gas side and the gases exit at 800k. saturated water enters the boiler at 6 mpa and exits as saturated vapor at 6 mpa. the water flow rate is 10 kg/s. the specific heat at constant pressure is .

An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?