A simple steam power cycle receives 100 MJ/min as heat transfer from hot combustion gases and rejects 60 MJ/min as heat transfer to the environment. If the pump power required is 1400 kJ/min, the thermal efficiency of the cycle and turbine power output is
1
50% and 690 kW
2
40% and 690 kW
3
55% and 666.6 kW
4
40% and 666.6 kW