Cavitation and Cavitation in Turbine
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- Опубликовано: 9 фев 2025
- In this video, I explained cavitation and cavitation in turbine. I also explained following topic in this video.
1. Definition of cavitation
2. Effect of cavitation.
3. At Which place cavitation occur in turbine?
4. At Which place cavitation occur in turbine?
5. In impulse (Pelton) turbine cavitation occur or not?
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Don't know if the concept is hard to understand or The English..! 😬
Read the below points:
*if you consider the turbine to be an airfoil, then there is a low pressure region amd a high pressure region in every blade of the turbine
*also the water outlet from the turbine is of low pressure, since it has given all its energy for the rotation.(bernoullis principle)
*the decrease in pressure decreases the boiling point of the water,(according to thermodynamics) hence it gets converted into steam bubbles.
*the hot steam bubbles collide with each other, producing impact forces on thw turbine blades, thus damaging the outlet of turbine.
* Since,the pressure of tail race water>low pressure water from outlet,
the tail race is fitted close to the outlet to decrease the pressure gradient, hence greatly decreasing the cavitation effect.
*
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Great one sir
You are going wrong bro