Heat of Combustion Calculator

Formula

The formula to calculate the Heat of Combustion (HC) is:

\[ HC = LHV + H_v \times \left( \frac{NH20}{NFuel} \right) \]

Where:

\(HC\) is the heat of combustion
\(LHV\) is the lower heating value
\(H_v\) is the heat of vaporization of water
\(NH20\) is the number of moles of water vaporized
\(NFuel\) is the number of moles of fuel combusted

What is the Heat of Combustion?

The heat of combustion is defined as the total amount of energy released by a fuel during the process of combustion. This metric is crucial for understanding the energy content of different fuels and is widely used in fields such as energy production, engineering, and environmental science.

Example Calculation

Let's assume the following values:

Lower Heating Value (LHV) = 500 kJ/mol
Heat of Vaporization of Water (Hv) = 40.79 kJ/mol
Number of Moles of Water Vaporized (NH20) = 2 mol
Number of Moles of Fuel Combusted (NFuel) = 1 mol

Using the formula to calculate the Heat of Combustion (HC):

\[ HC = LHV + H_v \times \left( \frac{NH20}{NFuel} \right) = 500 + 40.79 \times \left( \frac{2}{1} \right) = 500 + 81.58 = 581.58 \text{ kJ/mol} \]

The Heat of Combustion (HC) is 581.58 kJ/mol.