Question
Two coal fired power plants each producing 1000 MW electric output at a thermal efficiency of 36% are replaced by a single nuclear power plant
Two coal fired power plants each producing 1000 MW electric output at a thermal efficiency of 36% are replaced by a single nuclear power plant (NPP) producing 600 MW electric at a thermal efficiency of 33%. The coal used by the coal fired power plant contains 70% carbon and 2% sulfur. The coal heating value is 26,500 kJ/kg and for water hfg = 2400 kJ/kg. Calculate the amount of:
i. coal saved by the use of the NPP in kg/s
ii. CO2 not released to the environment due to the use of the NPP in kg/s
iii. water evaporation rate in kg/s for cooling the NPP
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