Steam Boilers, Engines, Nozzles and Turbines
Stoichiometric quantity of air is the

Air required for complete combustion of fuel with no excess air
Air present in atmosphere at NTP conditions
Air required for optimum combustion so as to have reasonable excess air
Air required to convert CO into CO₂

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Steam Boilers, Engines, Nozzles and Turbines
Coke is produced by

Pulverizing coal in inert atmosphere
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Heating wood in a limited supply of air at temperatures below 300°C
Enriching carbon in the coal

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