The pool-type has greater thermal inertia to changes in temperature, which therefore gives more time to shut down/ SCRAM during a loss of coolant accident situation. Schematic diagram showing the difference between the Loop and Pool designs of a liquid metal fast breeder reactor. The reactor is now expected to be operational by October 2022. Īs of February 2021, around ₹5,850 crore (equivalent to ₹180 billion or US$2.43 billion in 2020) have been spent in the construction and commissioning of the reactor. However in August 2020, it was reported that the reactor might go critical only in December 2021. In July 2017, it was reported that the reactor is in final preparation to go critical. Other four FBR are planned to follow beyond 2030, at sites to be defined. Construction of the first two FBR are planned at Kalpakkam, after a year of successful operation of the PFBR. The design of this reactor was started in the 1980s, as a prototype for a 600 MW FBR. This is of special significance to the Indian nuclear power generation strategy as India has one of the world's largest reserves of thorium, which could provide power for more than 10,000 years, and perhaps as long as 60,000 years. India has the capability to use thorium cycle based processes to extract nuclear fuel. The PFBR is part of the three-stage nuclear power program. The surplus plutonium (or uranium-233 for thorium reactors) from each fast reactor can be used to set up more such reactors and grow the nuclear capacity in tune with India's needs for power. The power island of this project was engineered by Bharat Heavy Electricals Limited (BHEL), largest power equipment utility of India. The Kalpakkam PFBR is designed to use uranium-238 to breed plutonium in a sodium-cooled fast reactor design. In 2007 the reactor was planned to begin operating in 2010, but as of 2019 it is expected to reach first criticality in 2020.
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