Steam Boilers, Engines, Nozzles and Turbines
Coke is produced by

Pulverizing coal in inert atmosphere
Heating wood in a limited supply of air at temperatures below 300°C
Enriching carbon in the coal
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 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
The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades

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