The difference between gross & net calorific values of fuel is due to the___________________?
Correct answer: B. Heat carried away by steam from the combustion of hydrogen in the fuel
- A. Sensible heat carried away by the flue gases
- B. Heat carried away by steam from the combustion of hydrogen in the fuel
- C. Heat lost by radiation
- D. Heat carried away by the steam from the moisture content of the fuel
Explanation
The gross calorific value includes the heat recovered when water formed from hydrogen combustion condenses, whereas the net value excludes it. Thus, the difference is the heat carried away with steam produced by hydrogen combustion.
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