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

Passing steam over incandescent coke
Carbonisation of coal
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

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Compressors, Gas Turbines and Jet Engines
Clearance volume in actual reciprocating compressors is essential

To provide cushioning effect and also to avoid mechanical bang of piston with cylinder head
To attain high volumetric efficiency
To accommodate Valves in the cylinder head
To provide cushioning effect

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