What is the heating value of a fuel containing 60.0% carbon, 6.0% hydrogen, and other specified components according to the calorific value formula?

To calculate the heating value of a fuel based on its composition, particularly one that is 60.0% carbon and 6.0% hydrogen, you can use the calorific value formulas that incorporate different elemental contributions.

The heating value is generally calculated by considering the contributions of carbon and hydrogen, as they are the primary elements in hydrocarbons that release energy during combustion.

1. Carbon Contribution: For each kilogram of carbon, the combustion produces approximately 33.9 MJ. Therefore, with 60% carbon in the fuel, the energy contribution from carbon can be calculated as:

[

\text{Energy from Carbon} = 0.60 \times 33.9 \text{ MJ/kg} = 20.34 \text{ MJ/kg}

]

2. Hydrogen Contribution: For hydrogen, the combustion releases about 141.9 MJ for each kilogram of hydrogen. For 6% hydrogen in the fuel:

[

\text{Energy from Hydrogen} = 0.06 \times 141.9 \text{ MJ/kg} = 8.514 \text{ MJ/kg}

]

3. Total Heating Value: Add together the