Mechanical Engineering - Steam Nozzles and Turbines
Exercise : Steam Nozzles and Turbines - Section 2
- Steam Nozzles and Turbines - Section 1
- Steam Nozzles and Turbines - Section 2
- Steam Nozzles and Turbines - Section 3
1.
A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be
2.
In a De-Laval impulse turbine, the nozzle is kept very close to the blades.
3.
The flow of steam is super-sonic
4.
The pressure of steam at throat of a steam nozzle is called critical pressure.
5.
For maximum efficiency of an impulse turbine, the steam should leave the blades at right angles to their motion.
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