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Posted 05 Mar 2024

Updated 27 Mar 2024

2 min read

  • Core loading is the first approach to achieving criticality, leading to generation of power from the reactor.
    • Core loading activity consists of loading of reactor control sub-assemblies, followed by the blanket sub-assemblies and the fuel sub-assemblies.
    • Criticality means enough neutrons are created by fission to make up for those lost by leakage or absorption so that fission remains constant.
  • Operationalization of the PFBR (500 MWe) will mark the start of stage II of India’s three-stage nuclear power programme (refer to image).
  • It is constructed by Bhartiya Nabhikiya Vidyut Nigam Ltd (BHAVINI) along with others. 

 

 

  • About PFBR (Prototype Fast Breeder Reactor): 
    • Advanced third generation nuclear reactor designed to produce more fissile material (Pu-239) than it consumes.
    • Will initially use the Uranium-Plutonium Mixed Oxide (MOX) fuel.
    • In it, Uranium-238 will undergo nuclear transmutation to produce more fuel, thus called ‘Breeder’.
      • Transmutation is conversion of one chemical element into another.
      • Thorium can be also used, it transmutes into Uranium-233. 
    • Utilizes liquid sodium as a coolant.
    • Key Benefit: Inherent passive safety features ensuring a prompt and safe shut down of the plant in emergency.

 

  • Once commissioned, India will only be the second country after Russia to have commercial operating FBR.
  • Tags :
  • Kalpakkam
  • Fast Breeder Reactor
  • Nuclear power
  • BHAVINI
  • PFBR
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