Heat release parameter

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In combustion, heat release parameter (or gas expansion parameter) is a dimensionless parameter which measures the amount of heat released by an adibatic combustion process.[1][2] It is defined as

where

In typical combustion process, . For isobaric combustion, using ideal gas law, the parameter can be expressed in terms of density,[3] i.e.,

The ratio of burnt gas to unburnt gas temperature is

Gas expansion ratio

The gas expansion ratio is simply defined by

which is related to by

See also

References

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