Steam Boilers, Engines, Nozzles and Turbines
The cylinder condensation or missing quantity may be reduced by

The efficient steam jacketing of the cylinder walls
Superheating the steam supplied to the engine cylinder
Keeping the expansion ratio small in each cylinder
All of these

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Steam Boilers, Engines, Nozzles and Turbines
In natural circulation type boiler,

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
Feed pump is employed to supplement natural circulation in water wall type furnace
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
Water is converted into steam in one. Pass without any recirculation

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