steam turbine takes up steam at 1200 K and discharges the waste steam to the condenser  at 450 K. In order to maintain the source temperature constant at 1200 K, coal is fired at the rate  of 120 t h-1 in the boiler. Taking into account the losses in the boiler, 70% of the fuel heat goes to  generate steam which is supplied to the turbine with a negligible heat loss. The turbine is coupled  to a turbo-alternator to generate an AC. If the generator efficiency is 93% and transmission  efficiency is 95%, what is the electrical power output available in the grid? Given calorific value  of fuel is 32000 kJ/kg.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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 A steam turbine takes up steam at 1200 K and discharges the waste steam to the condenser 
at 450 K. In order to maintain the source temperature constant at 1200 K, coal is fired at the rate 
of 120 t h-1
in the boiler. Taking into account the losses in the boiler, 70% of the fuel heat goes to 
generate steam which is supplied to the turbine with a negligible heat loss. The turbine is coupled 
to a turbo-alternator to generate an AC. If the generator efficiency is 93% and transmission 
efficiency is 95%, what is the electrical power output available in the grid? Given calorific value 
of fuel is 32000 kJ/kg.

 

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