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If the engine burns solid fuel, like wood or coal, there is a grate covering most of the bottom of the firebox to hold the fire. An ashpan, mounted underneath the firebox and below the grates, catches and collects hot embers, ashes, and other solid combustion waste as it falls through the grates.
The grate area may easily be varied without affecting the design of the water circuit. This allows the use of large grates for burning low-grade fuels, such as waste and refuse . Where an industrial process both required process steam and also generated combustible waste products, the Stirling boiler could use one to generate the other.
This used a system of paddles to push coal forward and it was fed into the firebox at grate level. [5] The Street type, consisted of a coal crusher, hand-fed by the fireman, that was fitted to the front left hand side of the tender footplate and driven by a small steam engine mounted behind the hand brake column. The crushed coal then fell by ...
The steam is ejected through the chimney, again drawing the fire. The blastpipe is what produces the characteristic "chuff" sound. The dimensions of the blastpipe and chimney are critical to the steam-generating capacity of the locomotive and its fuel economy, since there is a natural trade-off between a high-velocity steam jet giving a strong ...
Grate firing is a type of industrial combustion system used for solid fuels. It now is used mainly for burning waste and biomass, but also for smaller coal furnaces. Capacities 0.3 to 175 MWth in industry and CHP; Fuel fired per grate area 1-2 MW/m 2, maximum grate area 100 m 2
Vessels typically contained several engines for different purposes. Main, or propulsion engines are used to turn the ship's propeller and move the ship through the water. . The fire room got its name from the days when ships burned coal to heat steam to drive the steam engines or turbines; the room was where the stokers spent their days shoveling coal continuously onto the grates under the ...