Steam Boilers, Engines, Nozzles and Turbines
A steam nozzle converts

Heat energy of steam into potential energy
Heat energy of steam into kinetic energy
Potential energy into heat energy of steam
Kinetic energy into heat energy of steam

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Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which

Fuel burns with less air
All the fuel burns instantaneously producing high energy release
Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal
Explosion in furnace

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