3 8 nuclear power generation
Download
Skip this Video
Download Presentation
3-8 Nuclear Power Generation

Loading in 2 Seconds...

play fullscreen
1 / 9

3-8 Nuclear Power Generation - PowerPoint PPT Presentation


  • 64 Views
  • Uploaded on

3-8 Nuclear Power Generation. (11.3 pg 318-322) . Physicists figured out they could cause a self-propagating set chain reaction of nuclear fission reactions from a single neutron to create a lot of energy ( Fig.1 p.318 ). .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '3-8 Nuclear Power Generation' - julie


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide2
Physicists figured out they could cause a self-propagating set chain reaction of nuclear fission reactions from a single neutron to create a lot of energy (Fig.1 p.318).
slide3
Although a single fission reaction produces a small amount of energy, a large number of reactions could produce a LOT of energy, but would also need to be controlled!
slide5
It helped to highlight 5 major problems that needed to be overcome by any nuclear power plant:
    • Very concentrated radioactive material is needed. Natural uranium is not enough.
    • Fast moving neutrons need to be slowed down in order to react with a nucleus and cause fission. A moderator is a substance that slows the neutrons down enough.
    • There needed to be a minimum mass of radioactive fuel to absorb the neutrons. This amount is called the critical mass.
    • The reaction needs to be controlled. If it goes too fast it can overheat and explode. Too slow and it will stop altogether.
    • The final problem was how to deal with the massive amounts of heat produced. This problem was nicely solved by using it to boil water to generate steam to drive a turbine, which would generate electricity.
slide6
Canadian-developednuclear reactors are called CANDU reactors (CANDU =CANadian Deuterium and Uranium).
  • They use natural uranium as fuel and heavy water (deuterium water) as a moderator and coolant.
  • CANDU reactors are a type of pressurized heavy water reactor (PHWR); the other popular type of popular reactor is the pressurized water reactor or (PWR).
slide9
TED talk debate: Does the world ‘need’ nuclear energy?

http://www.ted.com/talks/debate_does_the_world_need_nuclear_energy#t-30854

ad