Hydrogen enters the turbine of an ericsson cycle at 1160 k, 5 bar with a mass flow rate of 1 kg/s. at the inlet to the compressor the condition is 300 k and 1.5 bar. assuming the ideal gas model and ignoring kinetic and potential energy effects, determine: (a) the net power developed, in kw. (b) the percent thermal efficiency. (c) the back work ratio.

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

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