Method to enhance operation efficiency of water turbines and to reduce cavitation of components thereof
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United States of America Patent
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Jun 30, 2020
Grant Date -
May 7, 2020
app pub date -
Nov 6, 2018
filing date -
Nov 6, 2018
priority date (Note) -
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Abstract
A method to dispose at least one air guiding tube between a penstock and a water turbine installed on a dam to form negative pressure at an outlet of the air guiding device by the water kinetic energy produced from high speed of water flow to take in external air for pressurizing, so as to produce a plurality of pressured air bubbles mixed into the water. The water with pressured air bubbles would be decompressed when flowing to an exit of the penstock and has their volumes increased, so as to enhance the water kinetic energy for driving the water turbine more efficiently; meanwhile the method can prevent from production of cavities and further avoid damages of the components of the water turbine from cavitation.
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