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Water (H2), or heavy water (D2O). Sometimes, liquid sodium is used.
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∙ 12y ago
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How much energy is produced by a nuclear reactor?
For a typical fission reactor, power output can range from maybe 700 to 1000 MW (megawatts) with most modern deisgns being in the high end of that range.
Why is moderator not required in modern fast reactors?
a moderator would slow the neutrons, hindering breeding
Why can nuclear powered submarine stay submerged for months at a time?
The key to the range and duration of the modern nuclear submarine is the nuclear reactor. The reactor generates heat through nuclear fission, and this does not use air (or the oxygen in it). The heat is used to make steam, and the steam drives conventional steam turbines. With a large power source and no requirement to be on the surface, the boats can stay down for an extended period limited only by the amount of provisions they can stow aboard prior to deployment.
How many fuel assemblies are in a modern reactor?
200
How many layers of containment are needed for nuclear energy?
It depends on the particular design, but most modern designs have four layers of containment.The zircalloy fuel pin itselfThe reactor pressure vesselThe primary containmentThe secondary containment
Who invented the first nuclear reactor for electrical power?
This is usually credited to Eugene P. Wigner, Leo A. Ohlinger, Gale J. Young, and Alvin M. Weinberg in their US Patent #2,736,696 titled Reactor, applied for August 29, 1945 and granted February 28, 1956. While this patent applies specifically to a heavy water moderated, light water cooled type of power reactor and the vast majority of modern power reactors are derived the the later light water moderated, light water cooled type of power reactor designed by Hyman G. Rickover for the nuclear submarine USS Nautilus, this patent and its inventors have precedence over the work of Rickover. Weinberg specifically worked with Rickover and contributed greatly to the success of Rickover's work with nuclear power reactors.
A large modern nuclear power plant has approximately how many fuel assemblies in its core?
There are about 121 to 193 fuel bundles loaded into a PWR reactor core. If you are talking about a BWR, that ranges from 368 - 800 fuel assemblies per core.
What type of nuclear reaction is used in modern day nuclear reactors?
Current nuclear reactors rely on nuclear fission as their nuclear reaction.
Is there a list of modern nuclear weapons?
No, but there is a list of modern greenpeace actions.
Is modern family a nuclear family?
I believe the nuclear family is considered to be a couple with 2.5 children. This also may be considered the modern family.
Does the nuclear submarine have a patent?
Nuclear submarines as an overall design do not have a patent, but many functioning systems within them do. For example, reactor type/model, engines, sonar, periscopes/optics, radio systems, etc., and even many systems that were originally developed and patented by John Phillip Holland remain key elements of modern submarines, even though their technology has evolved.
Which fuel is used in submarine?
Modern submarines (depending on type) use nuclear fuel for their reactors, plus a tank of diesel fuel that acts as both reactor shielding and fuel supply for the backup diesel generator. Diesel-Electric submarines use strictly diesel fuel.
