Mechanical Engineering :: Steam Nozzles and Turbines
- In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be
- The pressure of steam __________ while flowing through a nozzle.
- In a single acting steam engine
- Willian’s line for the steam engine is a straight line relationship between the steam consumption per hour and
- In natural circulation type boiler,
- In forced recirculation type boiler,
- A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
- In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade.
- The missing quantity per stroke is equal to
- Water boils when its vapor pressure
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A.
The steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft |
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B.
The steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft |
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C.
The steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft |
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D.
The steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft |
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A.
Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum |
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B.
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam |
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C.
Feed pump is employed to supplement natural circulation in water wall type furnace |
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D.
Water is converted into steam in one. Pass without any recirculation |
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A.
Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum |
|
B.
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam |
|
C.
Feed pump is employed to supplement natural circulation in water wall type furnace |
|
D.
Water is converted into steam in one pass without any recirculation |