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Earth cutaway from core to exosphere. Partially to scale. Travelling to the Earth's center is a popular theme in science fiction. Some subterranean fiction involves traveling to the Earth's center and finding either a hollow Earth or Earth's molten core. Planetary scientist David J. Stevenson suggested sending a probe to the core as a thought ...
The fuel was 7 LiF-BeF 2-ZrF 4-UF 4 (65-29.1-5-0.9 mole %). The first fuel was 33% 235 U; later a smaller amount of 233 UF 4 was used. By 1960 a better understanding of fluoride salt based molten-salt reactors had emerged from earlier molten salt reactor research for the Aircraft Reactor Experiment.
A cutout of a stable salt reactor core. The stable salt reactor (SSR) is a nuclear reactor design under development by Moltex Energy Canada Inc. [1] and its subsidiary Moltex Energy USA LLC, based in Canada, the United States, and the United Kingdom, as well as MoltexFLEX Ltd., based in the United Kingdom.
The inclusion of iron and chromium rich regions probably originate from a molten nozzle that did not have enough time to be distributed through the melt. The bulk density of the samples varied between 7.45 and 9.4 g/cm 3 (the densities of UO 2 and ZrO 2 are 10.4 and 5.6 g/cm 3). The porosity of samples varied between 5.7% and 32%, averaging at ...
IMSR Core-unit, primary containment and silo. This cut-away view shows the internals of the IMSR Core-unit, the containment and the surrounding structural silo. The Core-unit is a sealed reactor vessel that contains the graphite moderator (shown in white), primary fuel salt, and primary heat exchangers and pumps (shown in blue).
The Generation IV International Forum (GIF) is an international organization with its stated goal being "the development of concepts for one or more Generation IV systems that can be licensed, constructed, and operated in a manner that will provide a competitively priced and reliable supply of energy ... while satisfactorily addressing nuclear safety, waste, proliferation and public perception ...
The radius of the outer core is about half of the radius of the Earth. If the field at the core-mantle boundary is fit to spherical harmonics, the dipole part is smaller by a factor of about 8 at the surface, the quadrupole part by a factor of 16, and so on. Thus, only the components with large wavelengths can be noticeable at the surface.
A core catcher is a device provided to catch the molten core material of a nuclear reactor in case of a nuclear meltdown and prevent it from escaping the containment building. A core catcher is made from a special thermally resistant concrete ceramic to prevent nuclear core material from melting through the core catcher; it also has a cooling ...