Economic feasibility of electric power generation in a dual biogas-diesel engine in rural areas
DOI:
https://doi.org/10.33448/rsd-v10i17.24528Keywords:
Energy; Biomass; Electricity.Abstract
The biogas resulting from the anaerobic digestion of agricultural residues is interesting for its own generation of electricity. With the standardization of micro and mini distributed electricity generation in 2012 at Brazil, a great opportunity was opened for the use of biomass and solar energy to generate renewable electricity in rural areas. The feasibility study of technologies for using biogas in electricity generation is important in decision-making. Generally the generation of electricity with biogas is carried out in gas generator engines with compression ignition. In this study, the use of dual-cycle diesel engines is proposed, which simultaneously use two fuels, gas and diesel or biodiesel. This work had as general objective the analysis of the economic viability of using the dual biogas/diesel engine in the production of electric energy for rural areas. Three conditions were analyzed: generator engine with 100% diesel, 50% diesel and 50% biogas, 90% biogas and 10% diesel, operating 5, 10 or 20 hours a day. The results proved the feasibility of this practice only with generator engines with a power of 50kW or more, operating at least 10 hours a day and adjusted to consume 90% biogas and 10% diesel. It was observed that generation costs depend on economies of scale.
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Copyright (c) 2021 Juliano de Souza; Samuel Nelson Melegari de Souza; Doglas Bassegio; Deonir Secco; Victor Vaz ; Willian Cézar Nadaleti ; Flávio Gurgacz; Waldir Mariano Machado Junior
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