The second generation nuclear reactor

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Nuclear reactor architecture scenery of the Browns ferry nuclear power plant. The second generation nuclear reactor became larger than the first generation.

In the second generation nuclear reactor (だいにせだいげんしろ), it is classified the nuclear reactor design. When the design of the fourth generation nuclear reactor was introduced, the division of the second generation was shown as one of four generations by United States Department of Energy. The second generation furnace means an early commercial furnace designed by the end of 1990s [¹].

These are the practical use furnaces where the substance-like use was aimed for [¹] in contrast with the first generation furnace consisting of a prototype reactor and early demonstration reactors. Pressurization water type, boiling water type, CANDU reactor, advanced gas-cooled ractor, VVER, RBMK are included in the second generation furnace [¹]. In the second generation nuclear reactor, most were produced in anticipation of design life from 30 through 40. Improvement continued being added to raise safety more, and the nuclear reactor of these forms changed in the third generation more improved nuclear reactor in the 1990s.

The second generation nuclear reactor becomes the old technique now and is inferior to the third generation in the safety. On the other hand, there is the example that the second generation furnace of the improved model is founded by a cost side. Expression called the second generation + is used for the design of the development type second generation built after 2000. Chinese CRP1000 exists for a representative, and this name is used in the competition with the third generation more expensive nuclear reactor well. The modernization such as doing the safe system and design life of the improved model in 60 is seen in the second generation +. ^{[The source required]}

Originally, as for the design of the second generation nuclear reactor, design life is generally 30 through 40. However, the activity life is postponed for most of the second generation nuclear reactors from 50 through 60, and it is said that it is economical that activity life is postponed till 80 again [²]. Because most of nuclear reactors were not paid after Three Mile Island accident (1979) and Chernobyl accident (1986) in the developed nations, there are many examples which the second generation active furnace operates up to the present in those days. ^{[The source required]}

Table of contents

The second generation nuclear reactor

• Boiling water reactor
  • The nuclear reactor which became the model of many nuclear reactors with a pressurization water type. The system is such that I turn a turbine in the light water which let you boil.
• Pressurized water reactor
  • The nuclear reactor which is adopted with a boiling water type a lot so many. The primary system of the coolant and the second system isolate it, and there is little garbage in case of the decommissioning.
• CANDU reactor
  • The nuclear reactor which was designed in Canada. Nuclear fuel becomes able to extract it while driving.
• Advanced gas-cooled ractor
  • The nuclear reactor which is used in the U.K. The black lead furnace which uses the black lead for a moderator. It cools off with gas.
• VVER
  • The pressurized water reactor which Russia adopts. It is similar to a pressurized water reactor, but a design includes a difference with the thing of the Western countries basically.
• RBMK
  • The nuclear reactor where I used black lead for as a main moderator. A generation dose is big in the black lead furnace. It is the furnace of the Chernobyl accident of the same type, but I add improvement and am used now.

References

1. ^ ^{a b c} Jamasb, Tooraj; William J. Nuttall, Michael G. Pollitt (2006). Future electricity technologies and systems (illustrated ed.). Cambridge University Press. pp. 203. ISBN 0521860490, 9780521860499. 
2. ^ "No reason why NPPs cannot live beyond 60." Nuclear Engineering International. (October 1, 2010). http://www.neimagazine.com/story.asp?sectionCode=132&storyCode=2057693 October 14, 2010 reading. 

Allied item

• Nuclear reactor
• The first generation nuclear reactor (early black lead furnaces equal to this)
• The third generation nuclear reactor
• The fourth generation nuclear reactor

Outside link

• Nuclear Reactors Knowledge Base at IAEA
• Gen IV at US DOE
• Atomic energy encyclopedia ATOMICA

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