Steam Boilers, Engines, Nozzles and Turbines
The function of a flywheel is

To prevent fluctuation of speed
To convert reciprocating motion of the piston into rotary motion
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To keep the engine speed uniform at all load conditions

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

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

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