A steam power plant has the boiler efficiency of $92$ %, turbine efficienc (mechanical) of $94$ % generator efficiency of $95$ and cycle efficiency of $44$ %. If $6$ % of the generated power is used to run the auxiliaries, the overall plant efficiency is

34

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39

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45

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30

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Solution

The correct option is A $34$ %
$η_{0} = η_{b} \times η_{T (R)} \times η_{m e c h (T)} \times η_{g e n} \times η_{A u x}$
$= 0.92 \times 0.44 \times 0.94 \times 0.96 \times 0.94 = 0.34$
$= 34$ %

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A steam power plant has the boiler efficiency of 92%, turbine efficienc (mechanical) of 94% generator efficiency of 95 and cycle efficiency of 44%. If 6% of the generated power is used to run the auxiliaries, the overall plant efficiency is

The correct option is A 34%η0=ηb×ηT(R)×ηmech(T)×ηgen×ηAux =0.92×0.44×0.94×0.96×0.94=0.34 =34%

A steam power plant has the boiler efficiency of $92$ %, turbine efficienc (mechanical) of $94$ % generator efficiency of $95$ and cycle efficiency of $44$ %. If $6$ % of the generated power is used to run the auxiliaries, the overall plant efficiency is

The correct option is A $34$ %
$η_{0} = η_{b} \times η_{T (R)} \times η_{m e c h (T)} \times η_{g e n} \times η_{A u x}$
$= 0.92 \times 0.44 \times 0.94 \times 0.96 \times 0.94 = 0.34$
$= 34$ %