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Información tecnológica

On-line version ISSN 0718-0764


CERVI, Ricardo G; ESPERANCINI, Maura S. T  and  BUENO, Osmar de C. Economic Viability of using Biogas for Electrical Power Generation. Inf. tecnol. [online]. 2011, vol.22, n.4, pp.3-14. ISSN 0718-0764.

The economic viability of the electrical power generation using biogas from swine wastes, was determined. The analyzed biodigester is a continuous tubular model with brick concrete duct and plastic covering with a gasometer, in which the waste of 2.300 fattening pigs are deposited daily. The initial investment estimate for the installation was R$ 51.537, the system annual costs were R$ 5.700, for maintenance, R$ 4.400 for depreciation and R$ 1.370 for interests. It was found that an average consumption of 28 kW-hour-1 is the minimum that the system must reach to be economically feasible.  

Keywords : biogas; economic viability; electrical power; biodigester; swine wastes.

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