07
Feb
Cavitation In Hydraulic Turbines. In general there are two ways to reduce the cavitation damage. General features of cavitation. I also explained following topic in this video1. The cavitation penetration rate of critical components such as impellor turbine blade and casing were found as high as 10 mmyear Ref 1.
2 The other involves developing coatings for the substrates of wetted parts which can prolong the overhaul interval of hydraulic components. Cavitation is a phenomenon in which the static pressure of the liquid reduces to below the liquids vapour pressure leading to the formation of small vapor-filled cavities in the liquid. 7 as the condition when a liquid reaches a. Detection of cavitation in hydraulic turbines 1. I also explained following topic in this video1. General features of cavitation.
Cavitation in hydraulic machinery presents unwanted consequences such as flow instabilities excessive.
It is the phenomenon in which vapour bubbles form rapidly and collapse within a liquid. In general there are two ways to reduce the cavitation damage- 1 One involves optimizing the hydraulic design of equipment. Cavitation commonly occurs in hydraulic turbines around runner exit. The liquid enters hydraulic turbines at high pressure. One involves optimizing the hydraulic design of equipment. Cavitation-led erosionpitting may exceed 40-mm depth beyond which a hydroturbine runner is considered undesirable for operation and is generally taken out from the service for maintenance Ref 1 2.