NUMERICAL PROBLEMS
12. The following data is available for a steam power station:
Maximum demand = 25,000 kW; Load factor = 0.4; Coal consumption = 0.86 kg/kWh; Boiler
efficiency = 85%; Turbine efficiency = 90%; Price of coal = Rs. 55 per tonne.
Determine the following:
(i) Thermal efficiency of the station.
(ii) Coal bill of the plant for one year. [Ans. (i) 76.5% (ii) Rs. 41,43,480]