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Kakrapar-4 Nuclear Reactor Attains Criticality


Why is it in the news?

  • The Fourth unit of the Kakrapar Atomic Power Project (KAPP-4) in Gujarat has achieved criticality.

About Criticality

  • State where the chain reaction of nuclear fission in a reactor is self-sustaining.
  • Each fission event produces enough neutrons for further fissions, maintaining a constant rate of fission and energy release.
  • Initial step in nuclear energy generation.

About Kakrapar Atomic Power Station (KAPS)

  • Nuclear power plant located in Surat, Gujarat.
  • Operated by the Nuclear Power Corporation of India Limited (NPCIL).
  • Uses Pressurized Heavy Water Reactors (PHWRs).
  • Fuel: Natural uranium.
  • Coolant and Moderator: Heavy water.
  • Four reactors – two 220 MW units and two 700 MW units.
  • Total Capacity: 1,840 MW.
  • The 700 MWe units are the largest indigenous nuclear power reactors built by NPCIL.
  • Unit-3 and Unit-4 have steel-lined inner containment systems to prevent radioactive material escape.
  • Passive decay heat removal systems for safe cooling even during shutdown.
State of Nuclear Energy in India

路聽聽聽聽聽聽 Nuclear energy constituted approximately 2.8 percent of India’s total energy production.

路聽聽聽聽聽聽 NPCIL operates 23 reactors.

路聽聽聽聽聽聽 Total Capacity: 7,480 MW.

路聽聽聽聽聽聽 Ongoing construction projects and sanctioned projects aim to increase nuclear power capacity to 22,480 MW by 2031.

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