نتایج جستجو برای: nuclear reactors
تعداد نتایج: 246668 فیلتر نتایج به سال:
A few decades ago, it was said that the debate on nuclear power had “reached an intensity unprecedented in the history of technology controversies” (Kitschelt 1986). However, the controversy over nuclear power has resurfaced today with a similar gravity. Advocates point to nuclear power as a much-needed energy source in an era of rising demand and the need to curb carbon emission levels, and of...
Most fusion research reactors confine the nuclear fuel using magnetic fields. John Perkins argues that w should not forget alternative methods, and ca s for a diversified world fusion program.
Currently, China is pursuing a long-term expansion of its nuclear power program and plans to reprocess the resulting civilian spent fuel, recycling the plutonium in MOX fuel for LWRs and in fast breeder reactors. China presently operates three civilian nuclear power reactors, but it plans to build about 20 reactors by 2020. A pilot civilian reprocessing plant has been built at Lanzhou, with a c...
background: in megavoltage radiotherapy rooms, ordinary concrete is usually used due to its low construction costs, although higher density concrete are sometimes used, as well. the use of high-density concrete decreases the required thickness of the concrete barrier hence, its disadvantage is its high cost. in a nuclear reactor, neutron radiation is the most difficult to shield. a method for p...
Today, 31 countries operate ∼ 450 nuclear power reactors supplying electric power to ∼ 1 billion people,∼ 15% of the world population. Nuclear reactors generate∼ 17% of global electric power needs and a number of industrialized countries depend on nuclear power for at least half of their electricity. In addition, ∼ 30 nuclear power reactors are presently under construction worldwide (Macfarlane...
A critical review of electrochemistry in molten salts for the processing materials nuclear power sector, covering design and performance different reactors an overview relevant actinides lanthanides.
INTRODUCTION Anthropogenic plutonium has been introduced into the environment over the past 50 years as the result of the detonation of nuclear weapons and operational releases from the nuclear industry. In the Arctic environment, the main source of plutonium is from atmospheric weapons testing, which have resulted in a relatively uniform, underlying global distribution of plutonium. Other rele...
Probabilistic Safety Assessments (PSAs) have been performed during the design process for GE Hitachi Nuclear Energy (GEH) advanced nuclear power plant designs, including the ABWR and ESBWR advanced LWRs and the advanced sodium-cooled PRISM fast reactor. As part of the process for each plant, PSA results and risk insights have been developed and provisions were included to ensure that PSA modeli...
Currently, more than 16% of world energy demand is fulfilled by nuclear power plants (NPPs). This amounts to 2800 TWh energy annually generated by more than 441 NPPs operating in 31 countries worldwide [17]. Amongst these NPPs, the LWRs contribute to more than 85% of total energy produced by all nuclear reactors [20]. With the advantage of being proven technology along with extensive operationa...
A nuclear emergency response plan for Danish territory was first published in Decem-ber 1981 i. The plan focused on the Swedish Barsebäck Nuclear Power Plant and covered the Greater Copenhagen area. During the Chernobyl accident in 1986 the principles of the nuclear emergency response plan for Greater Copenhagen were used for the whole of Denmark. A full nationwide nuclear emergency response pl...
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