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

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

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Steam Boilers, Engines, Nozzles and Turbines
Boiler H.P. is defined as the

Steam evaporation rate per kg of fuel fired
Work done by 1 kg of steam at saturation condition
Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam
The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam

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