Nobody downloaded yet

Hydraulic Machines - Essay Example

Comments (0) Cite this document
Summary
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…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.8% of users find it useful
Hydraulic Machines
Read TextPreview

Extract of sample
"Hydraulic Machines"

Download file to see previous pages 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. ...
Operating principles of common turbomachines
Introduction
Turbomachines or turbines are defined as the hydraulic machines which convert hydraulic machines into mechanical energy. This mechanical energy is used in running an electric generator which is directly coupled to the shaft of the turbine.
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.
Efficiencies of a 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. Thus, the ratio of the volume of water actually striking the runner to the volume of water supplied to the ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Hydraulic Machines Essay Example | Topics and Well Written Essays - 1000 words”, n.d.)
Hydraulic Machines Essay Example | Topics and Well Written Essays - 1000 words. Retrieved from https://studentshare.org/technology/1520816-hydraulic-machines
(Hydraulic Machines Essay Example | Topics and Well Written Essays - 1000 Words)
Hydraulic Machines Essay Example | Topics and Well Written Essays - 1000 Words. https://studentshare.org/technology/1520816-hydraulic-machines.
“Hydraulic Machines Essay Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/technology/1520816-hydraulic-machines.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Machines
...?Ergonomics is mainly concerned about the design of machinery in accordance with the capabilities of human body in order to optimize the productivityof human beings and machines through an efficient relationship and interaction between the two. There are various different limitations to the way human body can work, a working environment that is best suited to the human body can generate productive results. The development of machines exactly in accordance with the limitations of human body is very difficult; similarly humans cannot use a machine to its highest efficiency because the limitations of human body and capabilities vary from one individual to the other. There are other factors...
1 Pages(250 words)Essay
HYDRAULIC FRACTURING
...? Hydraulic Fracturing First Middle initials Sur Learning Hydraulic fracturing is one of the processes used in miningoil and gas from below the earth surface. However, this method necessitates the introduction of pressure into the ground via the use of viscous fluids. These fluids are made by mixing water, sand and at least one chemical. The process has gain popularity around the world in countries such as United States of America, several European countries for example Germany, Sweden and France, and even South American countries like Brazil. Despite the economic advantages associated with this mining process, there have a wide outcry from environmentalists due to the pollution associated with the...
5 Pages(1250 words)Essay
Hydraulic Fracturing
... Hydraulic Fracturing Introduction Hydraulic fracturing is a process used to increase gas or oil flow from a well andhas been used to turn areas with shale into natural gas and oil fields (King).The process was first introduced in the US by Standard Oil in the 1940’s and has over the years been enjoined with other new technologies in tapping of shale. This has in turn led to increased oil and natural gas production in the US (Hassett and Mathar). The main components used in the process are water, chemicals and proppanants. Water is usually mixed with chemicals before being pumped into the rocks. The chemicals serve various such as thickening the water into a gel for effective penetration into the rock fractures, reducing friction... that the...
4 Pages(1000 words)Essay
Hydraulic conductivity
...? Hydraulic conductivity and Hydraulic conductivity Introduction Hydraulic conductivity is the simplicity of water movement, through fractures and porous spaces in rocks or soil, and the level is determined through the computation of the location’s hydraulic gradient and the conditioning of the permeability, as well as the saturation of the material. Hydraulic conductivity is universally determined through an empirical approach, which entails correlating hydraulic conductivity to the properties of the soil. It is also determined through an experimentation process, entailing the calculation of the level of conductivity, experimentally (Deb &, Shukla, 2012). This paper will define hydraulic conductivity and discuss the properties... or the...
8 Pages(2000 words)Coursework
Thinking machines
...CHAPTER 4 QUALITATIVE CONTENT ANALYSIS Purpose of the Paper As the use of machine increases, so do the scope of their utility and the strength of their capabilities. With computers and robots trying to achieve human-level intelligence, human kind have often paused to consider whether machines have actually gained the capability to think. ‘Can machines think?’ is a question posed by the famous British mathematician and computer scientist Alan Hume Turing who proposed the Turing Test to gauge the thinking capability of machines or computers. This paper examines the questions from different perspective and endeavors to come to a definite conclusion on whether...
18 Pages(4500 words)Essay
Hydraulic Machines
...of mechanics which relate continuity of mass and energy with force and momentum together with solid mechanics properties. Hydraulic machines are those machines which convert hydraulic energy into mechanical energy (further converted into electrical energy) or mechanical energy into hydraulic energy. The former types of machines are called turbines and the latter, pumps. Impact of a Jet onto a vane A combination of both pump and turbine is used in fluid couplings and torque converters for the transmission of power smoothly through a fluid medium. The analysis of impact of fluid jets on vanes is typically involved in the design of an...
4 Pages(1000 words)Essay
Urban machines
...Urban machines Urbanization is the general process of leaving the ancient way of life and adopting the modern life characterized by advanced technologies. By 1900, cities developed due to the economic as well as technological evolutions. More industries were built in centers having large populations where workers to labor in the manufacturing firms where housed. The centers had railway lines to ensure easy mobility of raw materials and finished products. More people also settled along the shores and river fronts due to easy transport. By 1887, electric car by Frank Sprague was the major transport mode in the cities; this replaced the ancient horse transport. Skyscrapers were constructed using steel rods...
1 Pages(250 words)Essay
Hydraulic fracturing
...“Hydraulic fracturing” or “cracking” is a process of through which natural gas and oil are extracted from rocks thatare deep below the earth’s surface. The process entails injecting massive quantity of water, sand and chemicals at an explosive pressure for the rocks to crack.. The pumped fluid contains tiny particles of solid materials known as proppants, which prop up the fractures to open once the production process begins. Additionally, the hydraulic fracturing fluids is usually water-based and contain different chemicals, as well as bactericides among others to promote the efficiency of the fracturing process and stop damage from taking place. After hydraulic fracturing, the pressure...
2 Pages(500 words)Essay
Hydraulic fracking
...Hydraulic Fracking To UK Legislation Assembly Legislation.gov.uk 23/4 Dear Politicians The aimof this letter is to persuade UK politicians to lobby for adoption of hydraulic fracking as alternative energy source. The world is facing energy crisis due to globalization, man-made effects and climate effects that has rendered fossil energy sources insufficient. This has led to economies to seek alternative energy sources in order to be abreast with crisis management. UK is one of the economies that is experiencing the energy crisis and seeking alternatives. Fracking process that involves extraction of shale gas has been a project encouraged by the government and is the alternative source available apart from...
3 Pages(750 words)Essay
Hydraulic Fracturing
...Geography Hydraulic Fracturing Fracking or hydraulic fracturing is a technique that has been widely used worldwideto extract oil and gas from the formations of shale deep in the earths surface (Maule et al. 168). Consequently, hydraulic fracturing involves the digging of vertical wells measuring from 5000 to 9000 ft deep into the ground. The wells are lined with steel and then cemented into place (Maule et al. 168). The gun located in the base into the shale then shoots electric currents. This then allows the pressurized fluids and proppant inserted into the shale to produce fractures in the shale stratum (Maule et al. 168). Moreover, the proppants are graded and suspended in the...
2 Pages(500 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Hydraulic Machines for FREE!
logo footer
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us