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Authors
Abstract(s)
Este presente trabalho estudou a viabilidade de um sistema híbrido alimentado por energia solar fotovoltaica e biogás, onde foram avaliados aspetos energéticos, econômicos e ambientais da planta. O sistema foi modelado a partir do software TRNSYS 16, sendo composto por um conjunto motor de combustão interna – gerador elétrico (CMCIG) para queima do biogás e 650 módulos fotovoltaicos de tecnologia cristalina (Mono C-Si). Ambos os subsistemas geram como produto final, eletricidade. O substrato utilizado para a produção de biogás é a manipueira, afluente agroindustrial proveniente do processamento da mandioca. A localização selecionada para a implementação do sistema teórico foi a cidade de Belterra – Pará, Brasil. A potência total instalada é de cerca de 115 kW, sendo 72% de responsabilidade do subsistema de biogás e 28% das placas solar PV. Para a análise econômica foram avaliados 5 diferentes indicadores: payback (2,77 anos), payback descontado (3,57 anos), VPL (US$ 141.322,78), IR (2,28) e TIR (34,19%) e o custo de produção de eletricidade após a amotização da planta foi de 0,12 𝑈𝑆$/𝑘𝑊. E a eficiência ecológica da planta foi de 94,9 %. Por fim, foi possível concluir que o HRES solar PV – biogás proposto é viável dos pontos de vista analisados, podendo ser considerado como uma tecnologia eficiente que atende, de forma inovadora, às demandas energéticas da região por meio de recursos de energia renováveis disponíveis localmente.
This present project studied the feasibility of a hybrid system powered by photovoltaic solar energy and biogas, where energy, economic and environmental aspects of the plant will be evaluated. The system was modeled aby the TRNSYS 16 software, consisting of an internal combustion engine - electric generator (CMCIG) powered by biogas and a set of 650 crystalline technology photovoltaic modules (Mono C-Si). Both subsystems generate electricity as a final product. The substrate used to produce biogas is manipueira, an agro-industrial affluent from the processing of cassava. The location selected for the implementation of the theoretical system was the city of Belterra - Pará, Brazil. The total installed power is about 115 kW, with 72% being the responsibility of the biogas subsystem and 28% of the PV solar panels. For the economic analysis, 5 different indicators were evaluated: payback (2.77 years), discounted payback (3.57 years), VPL (US$ 141.322,78), IR (2.28) and TIR (34.19%) and and the cost of producing electricity after the amortized plant was 0.12 US$/kW. And the ecological efficiency of the plant was 94.9%. Finally, it was possible to conclude that the proposed HRES solar PV - biogas is viable from the analyzed points of view, and can be considered as an efficient technology that meets, in an innovative way, the energy demands of the region through locally available renewable energy resources.
This present project studied the feasibility of a hybrid system powered by photovoltaic solar energy and biogas, where energy, economic and environmental aspects of the plant will be evaluated. The system was modeled aby the TRNSYS 16 software, consisting of an internal combustion engine - electric generator (CMCIG) powered by biogas and a set of 650 crystalline technology photovoltaic modules (Mono C-Si). Both subsystems generate electricity as a final product. The substrate used to produce biogas is manipueira, an agro-industrial affluent from the processing of cassava. The location selected for the implementation of the theoretical system was the city of Belterra - Pará, Brazil. The total installed power is about 115 kW, with 72% being the responsibility of the biogas subsystem and 28% of the PV solar panels. For the economic analysis, 5 different indicators were evaluated: payback (2.77 years), discounted payback (3.57 years), VPL (US$ 141.322,78), IR (2.28) and TIR (34.19%) and and the cost of producing electricity after the amortized plant was 0.12 US$/kW. And the ecological efficiency of the plant was 94.9%. Finally, it was possible to conclude that the proposed HRES solar PV - biogas is viable from the analyzed points of view, and can be considered as an efficient technology that meets, in an innovative way, the energy demands of the region through locally available renewable energy resources.
Description
Mestrado de dupla diplomação com o Centro Federal de Educação Tecnológica Celso Suckow da Fonseca - CEFET/RJ
Keywords
Sistema Híbrido Biogás Energia solar Fotovoltaico Viabilidade