Abstract
This study presents a preliminary analysis of the potential of electric energy generation from vegetal biomass coming from different Brazilian regions. The residues derived from sugar cane, silviculture, rice, cashew nuts, bay coconut and elephant grass were analysed. Based on the values of their harvests (referring to 2017/2018), with the exception of elephant grass’, the most updated mapping of which was in 2015, and also on the values of the lower calorific powers researched in the pertinent literature, thematic maps were constructed, which demonstrated the potential of electricity generation of crops. The results showed that, for cane and forestry, whose stage of development and use are already consolidated, there is still room for exploration. Rice bark and elephant grass presented high potential and growth capacity, while cashew nuts and coconut shells may be an energetic alternative, especially for the Northeast, despite the problems related to humidity of the latter.
Highlights
Renewable energy sources play a key role in current global strategies to reduce greenhouse gas emissions and partially replace fossil fuels
According to estimates given by the International Energy Agency (IEA) (2017), oil is still the most heavily involved in the world energy matrix, 32%, oil will be losing ground over the years, with an estimated share of 27.8% in 2035
Considering this study focuses on the mapping and analysis of the potential of electric energy production from forest biomass and agroindustrial residues, two technological routes were described, according to the study contemplated in the National Energy Plan 2030 and summarized by ANEEL (2008), defined as follows: a) Steam cycle with backpressure turbines: used in an integrated way in productive processes by cogeneration
Summary
The technological alternatives for the production of electric energy from forest biomass and agricultural residues consist of their conversion into intermediate inputs, later transformed into mechanical energy in driving machines, triggering an electric power generator. Considering this study focuses on the mapping and analysis of the potential of electric energy production from forest biomass and agroindustrial residues, two technological routes were described, according to the study contemplated in the National Energy Plan 2030 and summarized by ANEEL (2008), defined as follows: a) Steam cycle with backpressure turbines: used in an integrated way in productive processes by cogeneration. In this process, the biomass is burned directly in boilers, resulting in thermal energy used in the production of steam. It is important to develop studies that point out the potential gains of energy generation from other biomass sources, as well as their location
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