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| Author(s): |
Thiago Guilherme Ferreira Prado
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Eletrotécnica e Energia (IEE/BT) |
| Defense date: | 2007-04-13 |
| Examining board members: |
Jose Roberto Moreira;
Luiz Augusto Barbosa Cortez;
Patricia Helena Lara dos Santos Matai
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| Advisor: | Jose Roberto Moreira |
| Abstract | |
This work presents the evaluation of externalidades in production from sugarcane life cycle, with emphasis at electric power generation. The main objective of this study is to assess the health, social, environmental and economical externalities related with the production process of sugarcane industry from the start point of the productive chain (agricultural period) until the energy conversion of the biomass in electric power (main emphasis). Distributing the impacts, when possible, in subsystems that main productive cycle were divided, whose results, in general, were known but never segregated and treated by an integrated view under the optics of externalities evaluation at the production activity chain at sugarcane sector. The surplus generation of electricity brings with itself positive and negative externalities. The negative ones involve harmful aspects under the atmospheric emissions and human health and the biotic environment; as positive ones, are the use of renewable sources for electricity generation providing displacement of fossil fuels and indirectly thermal and electrical energy, reducing the consumption of this kind of fuels that are the main promoting components from the accentuation of the greenhouse effect and the benefits associated to the distributed generation, also discussed in this work. Both of these positive aspects, qualify this form of generation to participate at the clean development mechanism, that it will be treated as an instrument for incorporate the benefit of generating energy with renewable resources. From the main productive chain impacts related to the life cycle of the sugarcane, 32,68 % are associated with the stage of electricity generation. The main impacts assessed in the qualitative and quantitative way as production externalities were confirm as predominant effects also using the computational simulation tool (ECOSENSE LE) from the ExternE project. (AU) | |