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2 cards from this section. Quick, good the night before a test.
What does AFR stand for?
Consider the components involved in combustion.
Define 'Excess Air.'
Think about what happens when there’s more air than necessary.
What does the term 'Stoichiometric AFR' refer to?
Consider what 'stoichiometric' implies in combustion.
True or False: A rich mixture means there is more fuel than air in the combustion process.
Think about how you would balance fuel and air.
A gas engine has a stoichiometric AFR of 15:1. If it operates with an actual AFR of 12:1, calculate the equivalence ratio.
Use the equivalence ratio formula to determine the relationship.
An experiment shows that for complete combustion of 1.5 kg of fuel, 22 kg of air is needed. Determine if there's excess air and how much.
Calculate stoichiometric air first, then the excess air.
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