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What is the efficiency of a power plant if the efficiencies of the boiler, turbine and generator are 88, 40, and 98% respectively?
  • a)
    88%
  • b)
    40%
  • c)
    35%
  • d)
    98%
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
What is the efficiency of a power plant if the efficiencies of the boi...
Concept:
Overall efficiency of the power plant is equal to the multiplication of the efficiencies of boiler, turbine and generator.
η
power plant
= η
boiler
× η
turbine
× η
generator
Calculation:
Boiler efficiency = 88%
Electrical generator efficiency = 98%
Turbine efficiency = 40%
Overall efficiency of the plant = (0.88) (0.40) (0.98) = 0.34496
Overall efficiency of the plant ≈ 35%
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What is the efficiency of a power plant if the efficiencies of the boiler, turbine and generator are 88, 40, and 98% respectively?a)88%b)40%c)35%d)98%Correct answer is option 'C'. Can you explain this answer?
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