POSSIBLE NUCLEAR ENERGY STRATEGY IN JAPAN (POSSIBILITY OF FUSION-FISSION HYBRID REACTOR)

Author(s):  
Y. Seki
Author(s):  
Zhiwei Zhou ◽  
Hong Xu ◽  
Yongwei Yang

Two aspects of the development trend of current nuclear fission technology are discussed. The first aspect is to improve economic competitiveness and safety for searching opportunity of enlarging the share of nuclear power. The second aspect is to explore new ways of improving the efficiency of nuclear fuel utilization and of reducing the geological repository volume of radioactive products from nuclear power generation. Sustainable development of Chinese economy in 21st century will mainly rely on sustainable supply of clean energy with indigenous natural resources. The burden of current coal-dominant energy mix and the environmental pollution due to energy consumptions has led nuclear power to be an indispensable choice for further expanding electricity generation capacity and for reducing greenhouse effect gases emission in China. The long-term sustainable development strategy with nuclear fission technology beyond generation-IV for electric power generation, namely the fusion-fission hybrid subcritical reactor technology, is discussed. The impact of the proposed fission-fusion hybrid reactor to future nuclear power generation technology will reply on the success of the ITER-scale (500MW fusion power) Tokamak to burn plasma continuously in the predictable future. The main challenges and prospects of the strategy are also analyzed. The preliminary analysis has shown that the fission in the subcritical blanket driven by fusion neutrons can effectively amplify the energy carried by fusion neutron and maintain breeding of fissile material and tritium. It has been found from the results of a conceptual design that this new type of fusion-fission hybrid reactor may meet the requirement of China’s long-term sustainable development of nuclear energy.


Author(s):  
Paul J. J. Welfens ◽  
Bernd Meyer ◽  
Wolfgang Pfaffenberger ◽  
Piotr Jasinski ◽  
Andre Jungmittag

Author(s):  
Zhiwei Zhou

Sustainable development of Chinese economy in 21st century will mainly rely on self-supply of clean energy with indigenous natural resources. The burden of current coal-dominant energy mix and the environmental stress due to energy consumptions has led nuclear power to be an indispensable choice for further expanding electricity generation capacity in China and for reducing greenhouse effect gases emission. The application of nuclear energy in producing substitutive fuels for road transportation vehicles will also be of importance in future China’s sustainable energy strategy. This paper illustrates the current status of China’s energy supply and the energy demand required for establishing a harmonic and prosperous society in China. In fact China’s energy market faces following three major challenges, namely (1) gaps between energy supply and demand; (2) low efficiency in energy utilization, and (3) severe environmental pollution. This study emphasizes that China should implement sustainable energy development policy and pay great attention to the construction of energy saving recycle economy. Based on current forecast, the nuclear energy development in China will encounter a high-speed track. The demand for crude oil will reach 400–450 million tons in 2020 in which Chinese indigenous production will remain 180 million tons. The increase of the expected crude oil will be about 150 million tons on the basis of 117 million tons of imported oil in 2004 with the time span of 15 years. This demand increase of crude oil certainly will influence China’s energy supply security and to find the substitution will be a big challenge to Chinese energy industry. This study illustrates an analysis of the market demands to future hydrogen economy of China. Based on current status of technology development of HTGR in China, this study describes a road of hydrogen production with nuclear energy. The possible technology choices in relation to a number of types of nuclear reactors are compared and assessed. The analysis shows that only high temperature gas cooled reactor (HTGR) and sodium fast breed reactor might be available in China in 2020 for hydrogen production. Further development of very high temperature gas cooled reactor (VHTR) and gas-cooled fast reactor (GCFR) is necessary to ensure China’s future capability of hydrogen production with nuclear energy as the primary energy. It is obvious that hydrogen production with high efficient nuclear energy will be a suitable strategic technology road, through which future clean vehicles burning hydrogen fuel cells will become dominant in future Chinese transportation industry and will play sound role in ensuring future energy security of China and the sustainable prosperity of Chinese people.


Author(s):  
A Robson ◽  
W J Turner

Environmental economics, methodologies and issues are discussed and examples quoted for electricity generation systems. Results of the application of environmental ‘adders’ simulating a carbon tax in a British engineering-economic forecasting model are presented and the implications for energy strategy and nuclear energy discussed in relation to environmental factors.


2018 ◽  
Vol 35 (3) ◽  
pp. 18-21
Author(s):  
V. A. Tupchienko ◽  
H. G. Imanova

The article deals with the prospects of nuclear power development in Russia. The paper analyzes the key document in this area - «Energy strategy of Russia for the period up to 2030». It was found that today Russia has formed for itself the key aspects of the development of nuclear energy, which is due not only to the need of the population and enterprises in energy, but also the need of the country to ensure its own energy security and economic stability.


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