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Thursday, 22 December 2011

Basic Principle of Generating Steam in a Closed Vessel

Basic Principle
2.1 Generation of steam in a closed vessel causes an increase in
pressure due to a large increase in volume following a liquid-togas
phase change. This process accompanies an increase in
temperature of the water and the generated steam.
2.2 Design pressure is maintained while maintaining designed water
level with a steam space above it, and controlling steam generation
to balance steam flow from the boiler.
2.3 Water must be continuously supplied for the steam generation. For
all input conditions, water pressure and temperature at inlet remain
nearly fixed. The heat input to the boiler is through the combustion
of fossil fuel - coal, oil or gaseous fuel.
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MK


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