can be raised rapidly

is raisd at slower rate

is raised at same rate

could be raised at fast/slow rate depending on design

20%

40%

50%

90%.

15%

20%

30%

45%

pulverised fuel fired boiler

cochran boiler

lancashire boiler

babcock and wilcox boiler

boiler efficiency, turbine efficiency, generator efficiency

all the three above plus gas cycle efficiency

carnot cycle efficiency

regenerative cycle efficiency