Steam Boilers, Engines, Nozzles and Turbines
In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as

100°C and normal atmospheric pressure
100°C and 1.1 bar pressure
50°C and normal atmospheric pressure
50°C and 1.1 bar pressure

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

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

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