Generation of Electrical Energy
The overall efficiency of thermal power plant is equal to

Bioler efficiency × turbine efficiency × generator efficiency
Rankine cycle efficiency
Carnot cycle efficiency
Regenerative cycle efficiency

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Generation of Electrical Energy
In a regenerative surface condenser

There are three pumps to remove air, vapor and condensate
There is one pump to remove air and condensate
There is no pump; the condensate gets removed by gravity
There are two pumps to remove air and condensate

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