Determine the enthalpy of 1 kg of steam if the boiler efficiency is 79%, the evaporative capacity of the boiler is 9 kg of steam per kg of fuel fired, the feed water temperature is 40 C and the calorific value of coal is 30000 kJ/kg.

Determine the enthalpy of 1 kg of steam if the boiler efficiency is 79

1.	Determine the enthalpy of 1 kg of steam if the boiler efficiency is 79%, the evaporative capacity of the boiler is 9 kg of steam per kg of fuel fired, the feed water temperature is 40 C and the calorific value of coal is 30000 kJ/kg.
A.	2500 kJ/kg
B.	3000 kJ/kg
C.	2800 kJ/kg
D.	2200 kJ/kg
Answer» D. 2200 kJ/kg

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Determine the enthalpy of 1 kg of steam if the boiler efficiency is 79%, the evaporative capacity of the boiler is 9 kg of steam per kg of fuel fired, the feed water temperature is 40 C and the calorific value of coal is 30000 kJ/kg.

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