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The heating value is

  • the amount of heat produced by combustion of a unit quantity of a fuel

We differentiate between gross and net heating values:

Gross (or high, upper) Heating ValueThe gross or high heating value is the amount of heat produced by the complete combustion of a unit quantity of fuel.

The gross heating value is obtained when

  • all products of the combustion are cooled down to the temperature before the combustion
  • the water vapor formed during combustion is condensed
Net (or lower) Heating ValueThe net or lower heating value is obtained by
  • subtracting the latent heat of vaporization of the water vapor formed by the combustion

from the gross or higher heating value.

For further information Contact: Tauseef Awan email adress microengineer.tauseef@gmail.com mob:+92306-8859595

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Q: What is the difference between Gross heating Value and Net heating value?
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