Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are those in which

Water passes through the tubes and flue gases around it
Flue gases pass through tubes and water around it
Forced circulation takes place
Tubes are laid vertically

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

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

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