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Lecture

Hydraulic Construction Platform

In course

CIVIL-412: Hydraulic and hydroelectric structures and schemes

La conception générale et l'agencement des différentes infrastructures et batteries hydroélectriques, avec le dimensionnement de leurs ouvrages hydrauliques principaux. ...

Description

This lecture covers topics related to hydraulic construction platforms, pipes and networks, high waterfall development, and balancing chimneys in hydroelectric systems. It discusses different types of development based on topography, such as shielded wells, cut types, and feed tunnels. The presentation also includes examples of hydroelectric projects like Linthal 2015 and Gigerwald-Mapprag, emphasizing elements like balance chimneys, high headrooms, and pumping systems. The importance of water supply system elements, such as tanks, armored hydrants, and feeder galleries, is highlighted. The lecture delves into water hammer phenomena, pressure wave velocities, and the significance of equilibrium chambers in reducing pressure fluctuations. It concludes with a focus on the transitional analysis of hydroelectric developments and the modeling of hydraulic systems.

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Instructors (2)

Pedro Filipe De Almeida Manso

Giovanni De Cesare

Official source

Ontological neighbourhood

Industrial and production engineering

Industrial engineering: Hydraulics

Related concepts (32)

Hydraulic machinery

Hydraulic machines use liquid fluid power to perform work. Heavy construction vehicles are a common example. In this type of machine, hydraulic fluid is pumped to various hydraulic motors and hydraulic cylinders throughout the machine and becomes pressurized according to the resistance present. The fluid is controlled directly or automatically by control valves and distributed through hoses, tubes, or pipes.

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.

Hydraulics

Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids.

Hydraulic brake

A hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing glycol ethers or diethylene glycol, to transfer pressure from the controlling mechanism to the braking mechanism. During 1904, Frederick George Heath (Heath Hydraulic Brake Co., Ltd.), Redditch, England devised and fitted a hydraulic (water/glycerine) brake system to a cycle using a handlebar lever and piston. He obtained patent GB190403651A for “Improvements in hydraulic actuated brakes for cycles and motors”, as well as subsequently for improved flexible rubber hydraulic pipes.

Pressure measurement

Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure and display pressure mechanically are called pressure gauges, vacuum gauges or compound gauges (vacuum & pressure). The widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge.

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