Steam Boilers, Engines, Nozzles and Turbines
In cross compounding, the cylinders are arranged

At 90° and each cylinder has common piston, connecting rod and crank
At 90° and each cylinder has separate piston, connecting rod and crank
Side by side and each cylinder has separate piston, connecting rod and crank
Side by side and each cylinder has common piston, connecting rod and crank

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Steam Boilers, Engines, Nozzles and Turbines
For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet and exit respectively and β₁ and β₂ are the moving blade angles at entrance and exit respectively, then

α₁ < β₁ and α₂ > β₂
α₁ = β₂ and β₁ = α₂
α₁ = β₁ and α₂= β₂
α₁ = α₂ and β₁ = β₂

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