Engineering, 20.12.2019 00:31 kookycookiefanx
Consider a coal-fired steam power plant that produces 175 mw of electric power. the power plant operates on a simple ideal rankine cycle with turbine inlet conditions of 7 mpa and 550°c and a condenser pressure of 15 kpa. the coal has a heating value (energy released when the fuel is burned) of 29,300 kj/kg. assuming that 85 percent of this energy is transferred to the steam in the boiler and that the electric generator has an efficiency of 96 percent, determine (a) the overall plant efficiency (the ratio of net electric power output to the energy input as fuel) and (b) the required rate of coal supply. answers: (a) 31.5 percent, (b) 68.3 t/h the reheat rankine cycle
Answers: 2
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Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
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Consider a coal-fired steam power plant that produces 175 mw of electric power. the power plant oper...
Computers and Technology, 07.12.2019 06:31
Computers and Technology, 07.12.2019 06:31
Computers and Technology, 07.12.2019 06:31