Publication

Cavitation test of hydraulic machines : procedure and instrumentation

François Avellan
1993
Conference Papers

Abstract

Model testing of hydraulic turbines, storage pumps and pump-turbines is of great importance especially for large units involved in power generation. Among all the aspects of machine operation, cavitation plays a fundamental role with respect to the possible alteration of the efficiency and to the erosion risk. This paper describes the procedures of cavitation tests and the related instrumentation, depending both on the type of hydraulic machine and its operation range. Discussion is mainly directed toward the unavoidable distortions of the similitude requirements between model and industrial scales.

Official source

https://infoscience.epfl.ch/entities/publication/86c388a4-be0e-43d3-aea7-947261df7db5

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

François Avellan
1993
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/86c388a4-be0e-43d3-aea7-947261df7db5

About this result

Related concepts (32)

Water turbine

A water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work. Water turbines were developed in the 19th century and were widely used for industrial power prior to electrical grids. Now, they are mostly used for electric power generation. Water turbines are mostly found in dams to generate electric power from water potential energy. Water wheels have been used for hundreds of years for industrial power. Their main shortcoming is size, which limits the flow rate and head that can be harnessed.

Hydraulic fluid

A hydraulic fluid or hydraulic liquid is the medium by which power is transferred in hydraulic machinery. Common hydraulic fluids are based on mineral oil or water. Examples of equipment that might use hydraulic fluids are excavators and backhoes, hydraulic brakes, power steering systems, automatic transmissions, garbage trucks, aircraft flight control systems, lifts, and industrial machinery. Hydraulic systems like the ones mentioned above will work most efficiently if the hydraulic fluid used has zero compressibility.

Hydraulic cylinder

A hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke. It has many applications, notably in construction equipment (engineering vehicles), manufacturing machinery, elevators, and civil engineering. A hydraulic cylinder is a hydraulic actuator that provides linear motion when hydraulic energy is converted into mechanical movement. It can be likened to a muscle in that, when the hydraulic system of a machine is activated, the cylinder is responsible for providing the motion.

Related publications (1)

Cavitation test of hydraulic machines : procedure and instrumentation

Chat with Graph Search

Floodnet, design and throughput