A coal fire boiler plant consumes 400 kg of coal per hour. The boiler evaporates 3200 kg of water at 44.5 degrees * C into superheated steam at a pressure of 12 bar and 274.5 degrees * C . If the calorific value of fuel is 32760 kJ/kg of coal. Determine equivalent evaporation from and at 100 degrees *C and the thermal efficiency of the boiler. Assume specific heat of superheated steam as 2.1 kJ/kg.K.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A coal fire boiler plant consumes 400 kg of
coal per hour. The boiler evaporates 3200
kg of water at 44.5 degrees * C into
superheated steam at a pressure of 12 bar
and 274.5 degrees * C . If the calorific
value of fuel is 32760 kJ/kg of coal.
Determine equivalent evaporation from
and at 100 degrees *C and the thermal
efficiency of the boiler. Assume specific
heat of superheated steam as 2.1 kJ/kg.K.
Transcribed Image Text:A coal fire boiler plant consumes 400 kg of coal per hour. The boiler evaporates 3200 kg of water at 44.5 degrees * C into superheated steam at a pressure of 12 bar and 274.5 degrees * C . If the calorific value of fuel is 32760 kJ/kg of coal. Determine equivalent evaporation from and at 100 degrees *C and the thermal efficiency of the boiler. Assume specific heat of superheated steam as 2.1 kJ/kg.K.
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