Hydraulic Machines - Essay Example

Only on StudentShare

Extract of sample
Hydraulic Machines

If the water flows parallel to the axis of the rotation of the shaft, the turbine is known as axial flow turbine. If the head at the inlet of the turbine is the sum of pressure energy and kinetic energy and during the flow of water through runner a part of pressure energy is converted into kinetic energy, the turbine is known as reaction turbine.
a) Hydraulic efficiency: It is defined as the ratio of power developed by the runner of a turbine (runner is a rotating part of a turbine and on the runner vanes are fixed) to the power supplied by the water at the inlet of the turbine. Power at the inlet is more and this power goes on decreasing as the water flows over the vanes of the turbine due to hydraulic losses as the vanes are not smooth.
b) Mechanical efficiency: the power developed by the runner of a turbine is transmitted at the shaft of the turbine. Due to mechanical losses, the power available at the shaft is less than the power developed by the runner. The ratio of power available at the shaft to the power developed by the runner is known as mechanical efficiency of the turbine.
c) Volumetric efficiency: the volume of the water striking the runner of a turbine is slightly less than the volume of the water supplied to the turbine. Some water is discharged to the tail race without striking the runner. ...Show more


The liquid comes out in the form of a jet from the outlet of a nozzle, which is fitted to a pipe through which the liquid is flowing under pressure. If some plate, fixed or moving, is placed in the path of the jet, a force is exerted by the jet on the plate…
Author : zemlakhayley
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Hydraulic Machines"
with a personal 20% discount.
Grab the best paper

Related Essays

Probable Outcomes of a Radiological Dispersion Device
Radiological dispersion device can be identified as any weapon, which is manufactured to spread radioactive materials that are intended to cause harm to the population of a region.
6 pages (1500 words) Research Paper
Manufacturing Engineering Master Essay
The bearings are of two different types' i.e. anti-friction bearings and friction bearings. The anti-friction bearings are commonly known as ball bearings, whereas friction bearings include ball bearings, roller bearings, and angular tapered ball bearings.
6 pages (1500 words) Essay
Braiding Machines
Adanur (1995) describes a circular braiding machine as one which is made up of two sets with even number of spools that contain braiding yarns. One set of yarn runs in a clockwise direction around the centre of the machine, while the other yarn set turns in a counterclockwise direction.
8 pages (2000 words) Essay
Supervisory Control of A Bytronics Conveyor System
The blueprint and accomplishment of a flexible manufacturing structure ran podium centered on a programmable logic controller (PLC) as well as a desktop based illustration man- mechanism interface as well as statistical acquisition component. The fundamental facet of a flexible manufacturing structure (FMS) is about its plasticity to acclimatize to variations.
15 pages (3750 words) Research Proposal
Technology and Structures
For instance a hospital is constructed taking into consideration the comfort of the patients, effective communication mobility of surgical medical equipments smooth movement of doctors, staff and attendants within and unstable of the building. Appropriate system of water, power as init a light both natural and artificial is efficiently developed.
4 pages (1000 words) Assignment
Operating System Master Essay
Singularity is a Microsoft Research project to develop techniques and tools for building dependable systems that address the challenges faced by contemporary software systems. Singularity is approaching these challenges by simultaneously pushing the state of the art in operating systems, run-time systems, programming languages, and programming tools-the foundation on which software is built.
10 pages (2500 words) Essay
Causes and effects of using mobile phones

The mobile phones or smart phones are the product of this technology that has paved its way into the lives of every individual. Not only adults but many youngsters own this device and cherish the moments without realizing that they are wasting most of their time. No doubt this device has many uses.

1 pages (250 words) Essay
Find out how much would it cost
to get a custom paper written by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email