Steam Boilers, Engines, Nozzles and Turbines
Clearance ratio is the ratio of

Volume at cut-off to the swept volume
Clearance volume to the swept volume
Clearance volume to the volume at cut-off
Swept volume to the clearance volume

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Steam Boilers, Engines, Nozzles and Turbines
A regenerative steam cycle renders

Decreased work output per unit mass of steam as well as increased thermal efficiency
Decreased work output per unit mass of steam
Increased work output per unit mass of steam
Increased thermal efficiency

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