1 / 36

HYDRO POWER

HYDRO POWER. Introduction. 1. – INTRODUCTION 2. – HYDRO POWER PLANTS 3. – TURBINES 4. – HYDRO POWER IN CHINA 5. – ENVIRONMENTAL IMPACTS 6. – ADVANTAGES AND DISADVANTAGES. Water resource. What is water resource Distribution of water resource. Cycle of water resource.

Jimmy
Télécharger la présentation

HYDRO POWER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HYDROPOWER

  2. Introduction • 1. – INTRODUCTION • 2. – HYDRO POWER PLANTS • 3. – TURBINES • 4. – HYDRO POWER IN CHINA • 5. – ENVIRONMENTAL IMPACTS • 6. – ADVANTAGES AND DISADVANTAGES

  3. Water resource • What is water resource • Distribution of water resource

  4. Cycle of water resource

  5. Condition of water resource in world

  6. Introduction of Hydroelectric Power production: • The marshes that there are to construct suppose an important impact. • In the environment, marshes also have positive impact

  7. Hydro Power Plants

  8. Parts of a Hydroelctric Power Plant

  9. Different kind of Dams: • Arch Dams • Gravity Dams • Arch-gravity Dams

  10. Arch Dams Water Forces Weight Forces Aldeadávila Dam (in Spain)

  11. Water forces Weight Forces Gravity Dams Guri Dam (in Venezuela)

  12. Arch-Gravity dams Hoover Dam (between the U.S. States of Arizona and Nevada)

  13. Turbines

  14. PELTON TURBINES • Entrance elbow • Injector • Regulator • Bun • Blades or spoons.

  15. How works the Pelton turbine? • The Pelton turbines are used with high height jumps. • The gravitational power energy of the water dammed becomes in kinetic energy. • The injector throws the high speed water to the blades that are glued to the bun. • The water spurt transmits its kinetic energy to the bun, where it is transformed instantaneously into mechanical energy.

  16. PELTON’S BLADES • The edge that divides each bucket in two symmetrical parts cuts the water spurt, sectioning it in two laminae of fluid, theoretically of identical volume. This disposition allows resisting mutually the axial pushes that are originated in the bun.

  17. PELTON BUN

  18. KAPLAN TURBINES • The turbines that take his name have revolutionized in these years the use of jumps of little height. • The Kaplan turbines are water reaction turbines of axial flow, with a bun that works in similar way to the helix of a boat. • The Kaplan turbine is a helix turbine in which the blades of the bun turn itself when it is on, adjusting automatically according the work to the conditions of optimal yield.

  19. KAPLAN TURBINE

  20. DERIAZ TURBINES • Deriaz invented later the turbine that takes his name • This turbine is reversible • The price of the machinery is reduced using the same machine like pump and turbine.

  21. DERIAZ TURBINE’S ADVANTAJES The Deriaz turbine is like Francis turbine but with adjustable blades and has: • Working like turbine, better yield than a Francis turbine with analogous bun of stator blades • Working like pump, better yield than a turbine-pump of stator blades

  22. FRANCIS TURBINES • The Francis turbine is one of the reaction turbines • The radial flow causes the turn of the runner • This turbine is reversible • Francis turbines may be designed for a wide range of heads and flows

  23. FRANCIS TURBINE

  24. ELECTION OF THE TURBINES Typical range of heads • Kaplan 2 < H < 40 (H = head in meters) • Francis 10 < H < 350 • Pelton50 < H < 1300

  25. Hydropower in China

  26. Hydro power in China • There are 230 hydropower station that producing electricity over 50,000KW,including 25 over 1,000,000KW and 40 over 500,000KW

  27. China water resource (Three main river in China) • The total gross of water in China is 2.81 hundred millions stere. It is the sixth place in the world now.

  28. Sanxia • Location: Sichuan province • Sanxia is the largest project in the world. It is in the upriver of Changjiang river which form the rundle electrical station with Gezhouba electrical station in the downriver, however, there are lot of problems of emigration and environment have been broke out since this project produced • It start in 1994 years and will finished in 2009. • http://zhidao.baidu.com/question/1709822.html?si=7

  29. Liujiaxia • LiujiaxiaLocation: Gansu provinceused from 1974 • Configuration: 4 X 225 MW, 1 X 300 MW Francis

  30. Hydropower

  31. The most obvious impact of hydro-power The dams effects • Flooding of vast areas of land • Dams can facilitate the development of diseases • Cumuli silt • Destructive failure

  32. Flooding of vast areas of land • Flooded homeland • Immigrant • Destroyed rare ecosystems

  33. Dams can facilitate the development of diseases Reservoir Bacteria Fish people

  34. Cumuli silt • Reducing the amount of water which can be stored and used for electrical generation

  35. Destructive failure

  36. Thank you so much

More Related