In this context one can examine the experience of France and USA in nineteen seventies and of China in the recent years. Heavy Water Reactors • HWR is also a type of Thermal Neutron Reactor. Boiling Water Reactors (BWR) and Pressurized Water Reactors (PWR). Union Cabinet gave its approval for the construction of 10 units of the new indigenous 700 MWe (mega watt electric) pressurised heavy water reactors (PHWRs). Today, Insights is synonymous with UPSC civil services exam preparation. A/C No: xxxxxxxxxx2695 In such a strategy, the industry can gear up their dedicated production lines for sophisticated nuclear components and construction companies can deploy their manpower and skill-set most effectively. Boiling Water Reactor Water is used as coolant, steam source and moderator. While heavy water is significantly more expensive than ordinary light water, it yields greatly enhanced neutron economy, allowing the reactor to operate without fuel enrichment facilities. Pressure tubes made of Zr-2.5%Nb contain the 0.5 m long cluster-type fuel … • The HWR follows the working principle of the Pressurized Water Reactor. [U-238 → Plutonium-239 + Heat] [In PWHR, enrichment of Uranium to improve concentration of U-235 is not required. LTD Types of Nuclear Reactors: Light-water reactor (LWR) and Pressurized Heavy-Water Reactor (PHWR) and more. Mains: Science and technology – developments and their applications and effects in everyday life. The nuclear energy source is concentrated, continuous and reliable and, therefore, can be complemented by solar and wind energy in meeting the. In second stage, plutonium and uranium oxide is used to give uranium -233 in fast breeder reactors where no moderator is needed. However, to gain operational experience, initially an atomic power station comprising two boiling water reactors (BWR) was set up at tarapur, Maharastra.  It is the part of low-carbon growth strategy and to ensure long-term base load requirement for the nation’s industrialisation. Over four decades of relentless research, design and development work in Bhabha Atomic Research Centre and Nuclear Power Corporation and the matching contributions of some of their industry partners who had shown the courage in taking up the challenging manufacturing and construction work have enabled India in establishing the technology in totality. analyse. Cross-sections for the coupled RELAP5/PARCS calculation were extracted from HELIOS within the GenPMAXS framework. since unenriched uranium fuel accumulates a lower density of fission products than enriched uranium fuel, it generates less heat, allowing more compact storage. Government decision to construct 10 more PHWR Reflects the government’s commitment to prioritise the use of clean power in India’s energy mix. Treaties to Control spread of Nuclear weapons ; Heavy water contains an isotope of hydrogen called deuterium. Latest top 50 UPSC March month 2017 | Current Affairs current affairs are published in question and answer format which are reviews from Hindu, you can also download PDF file. As of March 2016, about 61% of the country’s installed capacity was coal-fired, 14% came from hydropower, 14% came from other renewables (mostly wind, followed by small hydro and biomass), 8% from natural gas, 2% from nuclear, and 1% from diesel. The first stage comprises of Pressurized Heavy Water Reactors fuelled by natural uranium. At present, the PWR are most popular kind of nuclear reactors.Key difference between a BWR and PWR is that. Topics Covered: Science and Technology- developments and their applications and effects in everyday life Achievements of Indians in science & technology; indigenization of technology and developing new technology. The decision to step up the indigenous civil nuclear reactor programme comes amid festering concerns over the deployment of imported light water reactor-based projects in collaboration with global vendors such as Toshiba-Westinghouse and Areva. To access the same, a google account is a must. Pressurized Heavy Water Reactor in Kakrapar. While Pressurized Heavy Water Reactors used unenriched uranium, Light Water Reactors required enriched uranium. PHWR was considered the best choice for India as it was capable of utilising unenriched uranium whereas light water reactors required enriched uranium. Methods and models were developed in several areas. Further, India could domestically produce the components of PWHR, as opposed to LWRs. The heavy water coolant is kept under pressure, allowing it to be heated to higher temperatures without boiling, much as in a pressurized water reactor. An enhanced scope and an accelerated implementation of the First Stage of the programme will make a far- reaching impact on securing the energy self-reliance of the country. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Pressurized heavy-water reactor (PHWR) is a nuclear reactor, Q.) India is now poised for a rapid growth in the nuclear power capacity which is essential for meeting the demand of clean electricity. If thorium is used as a fuel then it is a Advanced heavy water reactor in BARC, Mumbai. In a PWR, the primary coolant is pumped under high pressure to the reactor core where it is heated by the energy released by the fission of atoms. 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