PUMP CAVITATION | Animation

Hi! This is Easy Engineering! And today we are going to discuss cavitation!

So first we must understand that:
A boiling point/temperature of water @ sea level or 101.325 KPa or 14.696 pounds per square inch is 100 degrees Celsius. But remember that the water will not always boil @ 100 degrees Celsius, ONLY @ its corresponding pressure of 101.325KPa.
In fact, the boiling temperature of the water is dependent on its pressure.
A 50Kpa water boils @ 81degree Celsius. And 150 Kpa water boils @ 111 degrees Celsius. The lower the water pressure the lower its boiling temperature.

So now I suppose cavitation in the pump’s impeller is easier to explain.
So now look at this impeller. Now as the impeller rotates it creates a partial vacuum, meaning it's lowering its pressure to draw water. And as a result, the water boils also at a lower temperature. This boiling of water will form bubbles that will eventually COLLAPSE.
And this formation and collapsing of bubbles are what damages your impeller. These my friends are what we call CAVITATION.

That’s it! Thank you so much for watching! This is Easy Engineering.
#Cavitation #Thermodynamics #Engineering

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Видео PUMP CAVITATION | Animation канала EarthPen