Steam Boilers, Engines, Nozzles and Turbines
Carbonization of coal is the process of

Pulverizing coal in inert atmosphere
Heating wood in a limited supply of air at temperatures below 300°C
Binding the pulverized coal into briquettes
Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine

The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades
The expansion of steam takes place partly in the fixed blades and partly in the moving blades
The pressure and temperature of steam remains constant
The steam is expanded from a high pressure to a condenser pressure in one or more nozzles

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