Compressors, Gas Turbines and Jet Engines
Water gas is produced by

Passing air and a large amount of steam over waste coal at about 65°C
Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast
Passing steam over incandescent coke
Carbonisation of coal

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Compressors, Gas Turbines and Jet Engines
The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the

Stator to static enthalpy rise in the rotor
Stator to static enthalpy rise in the stage
Rotor to static enthalpy rise in the stator
Rotor to static enthalpy rise in the stage

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