Q/ Three chemical engineers ( Mohammed, Ahmed and Ali) discussed about the effect of the pressure value of the pump on the efficiency of the steam power plant that operate according on Rankine cycle( as shown in figure below): - Mohammed said that the increasing of the pressure value will increase the efficiency of the plant - Ahmed said that the increasing of the pressure value will decrease the efficiency of the plant - Ali said that the pressure value doesn't effect on the efficiency of the plant Which of them is true? QH T=500°c Boiler W pump W. Turbine Turbine Condensor Pressure = 25 Kpa Qc

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