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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
One kilowatt-hour energy is equivalent to

360 kJ
1000 J
3600 kW/sec
3600 kJ

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat utilized to produce steam and the heat liberated in furnace is known as

Boiler evaporative capacity
Factor of evaporation
Boiler efficiency
Boiler effectiveness

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the isentropic heat drop to the heat supplied, is called

Stage efficiency
Reheat factor
Internal efficiency
Rankine efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The length of Cornish boiler varies from

3 to 5 m
2 to 4.5 m
5 to 7.5 m
7 to 9 m

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Steam Boilers, Engines, Nozzles and Turbines
Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)

1/(I.P)²
I.P.
(I.P.)²
1/(I.P)

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Steam Boilers, Engines, Nozzles and Turbines
The maximum heat loss is a boiler occurs due to

Steam formation
Moisture in fuel
Dry flue gases
Unburnt carbon

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