Steam enters the turbine of a Rankine cycle at 16 MPa, 5608C. The condenser pressure is 8 kPa. The turbine and pump each have isentropic efficiencies of 85%, and the mass flow rate of steam entering the turbine is 120 kg/s. Determine (a) the net power developed, in kW. (b) the rate of heat transfer to the steam passing through the boiler, in kW. (c) the thermal efficiency. Plot each of the quantities in parts (a)(c) if the turbine and pump isentropic efficiencies remain equal to each other but vary from 80 to 100%.
Democracy, Law, and Class o Herodotus All offices assigned by lot All officials subject to investigation All policies are debated in public Restricted to one, 1 year term Must have a public review of their conduct at the end of their term This system made corruption very difficult o Development of democracy in Athens As the empire grew, the political role of the lowest class became very important Because the empire relied on naval power, the rowers had political power 170 rowers per ship o Participation in the assembly