March 2024

Breeder reactor is the one which converts non-fissionable material (U238) into fissionable material (U235). or A nuclear reactor that produces (breeds) some kind of fissile material as it burns is called breeder reactor. These reactors produce more fuel than what they consume. The fissionable nucleides such as U235 and Pu239 are called fissile nucleides. The non-fissionable nucleides such as U238 and Th232 are

Most commercial nuclear power plants today are light water reactor. U-235 fuel rods are submerged in water, where the water acts as a coolant as well as a moderator. This is called a light water power plant. The fission reaction is controlled by inserting or removing the control rods automatically from spaces in between the

[sc_fs_faq html=”true” headline=”h2″ img=”” question=”Definition of Nuclear Reactor” img_alt=”” css_class=””] A nuclear reactor is a device in which the nuclear fission reaction is carried out at a controlled rate so that the liberated energy can be utilised for constructive purposes. [/sc_fs_faq] Components of a nuclear reactor and its functions Controlled fission reaction is carried out

Classification of a nuclear reactor A. Classification by type of nuclear reaction: → Thermal reactors: They use slow or thermal neutrons. Almost all current reactors are of this type. These contain neutron moderator materials that slow neutrons until their neutron temperature is thermalised. → Fast neutrons: They use fast neutrons to cause fission in their

[sc_fs_faq html=”true” headline=”h2″ img=”” question=”What is Nuclear Energy?” img_alt=”” css_class=””] The liberation of large amount of energy by the nuclear chain reaction or nuclear fission is called nuclear energy. [/sc_fs_faq] The fission of U235 or Pu239 occurs instantaneously producing large amount of energy in the form of heat and radiation. Calculation of energy released due to nuclear fission Consider

Nuclear chain reaction is defined as a fission reaction where the neutrons from a previous step continue to propagate and repeat the reaction. We know that U235 when bombarded hit by a neutron undergoes the following fission reaction: 92U235 + 0n1 → 56Ba140 + 36Kr93 + 30n1 + Energy  In this reaction three neutrons are produced. These

In a nuclear fusion two light-weight nuclei combine or fuse to form a single heavy nucleus., with the simultaneous release of large amount of energy. For example, two nuclei of deuterium undergo fusion reaction to yield a heavy nucleus of helium. 1H2+1H2 →2He4+ 0n1 + Energy The Sun is a main-sequence star, and thus generates its

In many cases corrosion can be effectively controlled by changing or modifying the corrosive environment by: The corrosion nature is reduced by modifying the environment: the removal of harmful constituents in the environment and the addition of specific substances, which neutralise the effect of corrosive constituents of the environment. 1. Deaeration Presence of more amount

The rate and extent of corrosion depends on: Nature of the environment Nature of the metal. S.No Environment based factors Metal based factors 1 Temperature. Position of metal in galvanic series. 2 Humidity. Relative area of electrode. 3 Presence of impurities in atmosphere. Over voltage. 4 Influence of pH. Purity of metal. 5 Nature of

There are two types of electrochemical Corrosion: Galvanic corrosion Differential aeration or Concentration cell corrosion Galvanic corrosion When two dissimilar metals are in contact with each other on the presence of aqueous solution or moisture, galvanic corrosion occurs. The more active metal (with high negative electrode potential and higher in the electrode potential and higher