Steam Boilers, Engines, Nozzles and Turbines
Besides mean effective pressure, the data required to determine the indicated power of an engine include

Piston diameter, length of stroke and speed of rotation
Specific fuel consumption, speed of rotation and torque
Piston diameter, length of stroke and calorific value of fuel
Piston diameter, specific fuel consumption and Calorific value of fuel

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Steam Boilers, Engines, Nozzles and Turbines
The cylinder dimensions of a compound engine may be designed on the basis of

Equal temperature drop in each cylinder for economy of steam
Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders
Equal power developed in each cylinder for uniform turning moment
All of these

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