General Studies · IC Engines and Combustion
Using Dulong's formula, calculate the Higher Calorific Value (HCV) and Lower Calorific Value (LCV) of a coal specimen from the following composition by mass: Carbon = 70%, Hydrogen = 6%, Oxygen = 8%, Sulphur = 5%, and the remainder is ash.
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- 132896 kJ/kg & 25876 kJ/kg
- 232689 kJ/kg & 25687 kJ/kg
- 333319 kJ/kg & 25789 kJ/kg
- 431323 kJ/kg & 29992 kJ/kg✓
Correct answer
31323 kJ/kg & 29992 kJ/kg
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