Investigation of New Generation Accelerator Driven Subcritical Reactor System (ADS) in Nuclear Energy Production

2018 ◽  
Author(s):  
Recep Akkaya ◽  
Elif Kemah ◽  
Seyit Riza Tokgoz
Keyword(s):  
Energy Production ◽  
Nuclear Energy ◽  
Reactor System ◽  
New Generation ◽  
Subcritical Reactor

scholarly journals Analysis of system characteristics of a reactor with supercritical coolant parameters

2020 ◽  
Vol 6 (4) ◽  
pp. 243-247
Author(s):  
Anton S. Lapin ◽  
Aleksandr S. Bobryashov ◽  
Victor Yu. Blandinsky ◽  
Yevgeny A. Bobrov
Keyword(s):  
Nuclear Fuel ◽  
Energy Production ◽  
Nuclear Energy ◽  
Fuel Cycle ◽  
Nuclear Fuel Cycle ◽  
Nuclear Industry ◽  
Reactor System ◽  
Spent Fuel ◽  
Light Water ◽  
Closed Nuclear Fuel Cycle

For 60 years of its existence, nuclear energy has passed the first stage of its development and has proven that it can become a powerful industry, going beyond the 10% level in the global balance of energy production. Despite this, modern nuclear industry is capable of producing economically acceptable energy only from uranium-235 or plutonium, obtained as a by-product of the use of low enriched uranium for energy production or surplus weapons-grade plutonium. In this case, nuclear energy cannot claim to be a technology that can solve the problems of energy security and sustainable development, since it meets the same economic and ‘geological’ problems as other technologies do, based on the use of exhaustible organic resources. The solution to this problem will require a new generation of reactors to drastically improve fuel-use characteristics. In particular, reactors based on the use of water cooling technology should significantly increase the efficiency of using U-238 in order to reduce the need for natural uranium in a nuclear energy system. To achieve this goal, it will be necessary to transit to a closed nuclear fuel cycle and, therefore, to improve the performance of a light-water reactor system. The paper considers the possibility of using a reactor with a fast-resonance neutron spectrum cooled by supercritical water (SCWR). The SCWR can be effectively used in a closed nuclear fuel cycle, since it makes it possible to use spent fuel and discharge uranium with a small amount of plutonium added. The authors discuss the selected layout of the core with a change in its size as well as the size of the breeding regions (blankets). MOX fuel with an isotopic plutonium content corresponding to that discharged from the VVER-1000 reactor is considered as fuel. For the selected layout, a study was made of the reactor system features. Compared with existing light-water reactors, this reactor type has increased fuel consumption due to its improved efficiency and nuclear fuel breeding rate up to 1 and above.

Why Italian Nuclear Energy Policy Failed Twice

2017 ◽  
Author(s):  
Fabio Franchino
Keyword(s):  
Energy Policy ◽  
Energy Production ◽  
Nuclear Energy ◽  
Party Competition ◽  
Coalition Politics ◽  
History Of ◽  
Main Factors ◽  
Nuclear Energy Policy ◽  
The 1960S ◽  
Fukushima Disaster

The history of nuclear energy policy in Italy is characterized by major shifts. After being a world leader in nuclear energy production in the 1960s, the country stopped its programme in the 1980s. An attempt at rejuvenating and expanding nuclear energy in the early 2000s came to an end after the Fukushima disaster. In both instances a referendum was held. Party competition, coalition politics, changes in government, and Italy’s institutional features, in particular the provisions for holding referendums, are the main factors explaining these policy reversals. The chapter concludes that a relaunch of the nuclear energy programme does not seem impossible, but is unlikely for the foreseeable future.

scholarly journals Study on the production and use of biomass energy in the Timis County

2021 ◽  
Vol 26 (2) ◽  
pp. 2434-2440
Author(s):  
CRISTINA BACĂU ◽  
◽  
NICOLETA MATEOC-SÎRB ◽  
RAMONA CIOLAC ◽  
TEODOR MATEOC ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Nuclear Energy ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Renewable Energy Resources ◽  
Continuous Increase ◽  
Fossil Energy ◽  
Term Energy

The use of renewable energy resources is gaining more and more ground, thanks to the continuous increase in the price of fossil energy and the decrease in stocks, and the management of waste from nuclear energy production, respectively. The implementation of an energy strategy to harness the potential of renewable energy sources (RES) is part of the coordinates of Romania’s medium – and long-term energy development and provides the appropriate framework for the making of decisions on energy alternatives and the inclusion in the Community acquis in the field. In this respect, a study on the biomass potential of Timiş County and on the possibilities of producing unconventional energy from biomass has been carried out. The study is based on research, data collection from the literature, as well as from official documents or official websites, the processing and interpretation of the data and their quantitative and qualitative analysis. It was concluded that biomass is a promising renewable energy source for Romania, both in terms of potential and in terms of usability.

scholarly journals Investigation of thermodynamic factors influencing Thorium reactor efficiencies

2015 ◽  
Vol 2 ◽  
pp. 14-31
Author(s):  
Jarrod Glass ◽  
Anthony Burgess ◽  
Takuya Okugawa
Keyword(s):  
Molten Salt ◽  
Atmospheric Pressure ◽  
Energy Production ◽  
Nuclear Energy ◽  
Nuclear Reactors ◽  
Reactor Core ◽  
Thermodynamic Efficiency ◽  
Power Flux ◽  
Factors Influencing ◽  
Water Reactors

In this meta-study, the major forms of thorium based nuclear reactors were compared using thermodynamic parameters to find which reactor type holds the highest thermodynamic efficiency and hence, determine which reactor would be most beneficial to research further and implement for energy production. Our study found that molten salt reactors had the best thermodynamic efficiency and also runs at one atmospheric pressure, making it safer than conventional water reactors. The findings in this study show molten salt reactors would be the most efficient reactor to replace standard water reactors, which dominate the market in use of nuclear energy production. This study found a strong link between the thermal efficiency of the plant and the pressure and temperature at which it runs. Reactor core volumes also appeared to have a small effect on the efficiencies. Power flux density was calculated for each style of reactor and compared to other parameters but no distinct relationship was found between them. 

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