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| 1 |
ID:
101400
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2011.
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| Summary/Abstract |
Nuclear energy comes back to the discussions on the world stage as an energy source that does not contribute to global warming during production process. It can be chosen as the main source of power generation in some countries or complement the energy matrix in others. In this context, there is the need to develop new technologies for the management of radioactive waste generated by the production process. Final repositories for spent fuel are not yet in commercial operation, and techniques for fuel reprocessing have been developed, because after use, the fuel still has materials that produce energy. Some countries already use reprocessing, and develop research to make it more secure and more competitive, while others prefer to adopt policies to prevent developments in this area due to the problem of nuclear proliferation. In another line of research, new reactors are being developed in order to reduce the amount of waste in energy production and some will be designed to work in closed loop, recycling the materials generated.
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| 2 |
ID:
126507
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| Publication |
2013.
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| Summary/Abstract |
This work proposes a technical and economic analysis of the Brazilian matrix energy evaluation, aiming at the evaluation of impacts inherent to technological innovation involved on energy matrix and the sectoral development. Particular attention is given to biomass energy, natural gas, and conventional fuels, considering their impacts on agricultural activity, identifying the highest potential for investment in this sector. As a result, a clear view of the importance of agricultural sector participation in the context of the Brazilian energy is obtained, not only as a consumer, but mainly through self-production energy policy of waste reuse as biomass and of biofuels.
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| 3 |
ID:
125405
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2013.
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| Summary/Abstract |
The Brazilian aluminium industry, classified as energy-intensive, consume alone about 6% of all power generated by hydro-electric power plants, and therein lies much of the problem: needs lots of energy to produce primary aluminium. The aim of this study is to evaluate the strategy of energy self-generation as a viable alternative of sustainable growth and its importance for the competitive primary aluminium industry in Brazil and outlines key tactics to self-generation adopted for different economic scenarios and conditions in which it would be effective. Also environmental aspects are considered because their impacts in costs and the impact of recycling in the environment through, mainly, reuse o aluminium from cans. Given the instability of energy prices on the open market and supply volatility, self-generation appears as the best alternative for maintaining the sustainability of the primary aluminium industry in Brazil.
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