Enter the lower heating value, the heat of vaporization of water, moles of water vaporized, moles of fuel combusted to calculate the heat of combustion.

Heat of Combustion Formula

The following formula is used to calculate the heat of combustion.

HC = LHV + H_v * ( NH20 / NFuel)
• Where HC is the heat of combustion
• LHV is the lower heating value
• Hv 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

To calculate the heat of combustion, multiply the heat of vaporization by the ratio of the moles of water vaporized to the moles of fuel combusted, then add the result to the lower heating value.

Heat of Combustion Definition

The heat of combustion is defined as the total amount of energy released by a fuel during the process of combustion.

Heat of Combustion Example

How to calculate heat of combustion?

1. First, determine the lower heating value.

Measure the LHV or lower heating value.

2. Next, determine the heat of vaporization of water.

Determine the heat of vaporization of water.

3. Next, determine the number of moles of water vaporized.

Determine the total moles of water vaporized.

4. Next, determine the number of moles of fuel combusted.

Calculate the total moles of fuel used during combustion.

5. Finally, calculate the heat of combustion.

Calculate the heat of combustion using the formula above.

FAQ

What is heat of combustion?

The heat of combustion is the measure of the total energy released by a substance or fuel during combustion.

What is combustion?

Combustion is the chemical reaction of substances along with oxygen that releases heat as energy and gaseous byproducts.

What temperature does combustion occur at?

Combustion occurs at different temperatures depending on the substance involved.