Answer / iamdon

By employing super critical technology( Temperature more
than 600 degree celcius and pressure of steam 30 N/mm2 )
overall efficiency upto 50% can be achieved but in rest of
the cases the efficiency is well below 50%.
The range of efficiency of steam power plants is 30-50 %.
The typical value is 35%.

The reason of low efficiency is statistically stated as.
Approx 10% of heat is lost with flue gases.
Approx 50% of heat is lost in condensor.
These two are mainly responsible for low overall efficiency
of steam power plants.

Thermal cycle(Rankine cycle) efficiency=30-40%
Generator and Turbine efficiency=90% +

Author:arbelectbit@yahoo.com

Answer / nitin sarda

Nice answer

Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

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