Steam Boilers, Engines, Nozzles and Turbines
Gusset stays in a boiler are provided to

Avoid explosion in furnace
Prevent the bulging of flat surfaces
Support furnace freely from top
Prevent leakage of hot flue gases

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Steam Boilers, Engines, Nozzles and Turbines
The ultimate analysis of fuel lists

Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight
Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume
Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash

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