Explainer: India's three-stage nuclear power programme and the role of Fast Breeder Reactors
India's Prototype Fast Breeder Reactor (PFBR) at Kalpakkam recently achieved first criticality, a crucial step in its three-stage nuclear power programme. This programme, conceived by Homi Bhabha, aims for long-term fuel security by utilizing India's abundant thorium reserves. The first stage uses Pressurised Heavy Water Reactors (PHWRs) with natural uranium, producing plutonium. The second stage, involving FBRs like PFBR, uses this plutonium and depleted uranium to breed more plutonium. The final stage will use thorium and plutonium to generate electricity. FBRs are technically challenging and costly due to liquid sodium coolant and stringent safety requirements, leading to delays and cost overruns for PFBR. The article also highlights the need for a robust regulatory framework and economic viability for FBRs.
Key Points
- India's three-stage nuclear power programme aims for energy security and self-sufficiency using its thorium reserves.
- The Prototype Fast Breeder Reactor (PFBR) is a key component of the second stage, designed to breed more fissile material.
- FBRs are technically complex and costly, using liquid sodium as a coolant, which requires stringent safety protocols.
- The PFBR project has faced significant delays and cost overruns, highlighting challenges in FBR development.
- The long-term success of the programme depends on economic viability, public acceptance, and a strong regulatory framework.
Exam Facts
- Nuclear programme architect: Homi Bhabha.
- Reactor types: Pressurised Heavy Water Reactors (PHWRs), Fast Breeder Reactors (FBRs).
- PFBR location: Kalpakkam.
- PFBR coolant: Liquid sodium.
- Key fuel resources: Uranium, Plutonium, Thorium.
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