desempenho de um conjunto motogerador adaptado a biogás performance of a motogenerator adapted for biogas
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ID: 176796
2010
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Abstract
O presente trabalho foi desenvolvido na Estação de Produção e Uso de Biogás, da Universidade Federal de Lavras. O objetivo foi desenvolver e avaliar um sistema de alimentação de um motor estacionário com biogás. Foi utilizado um motor de 4 tempos com 4077 W de potência nominal à rotação de 4200 rpm acoplado a um gerador de 2400 W com rotação operacional de 3600 rpm. O biogás utilizado foi produzido em um biodigestor modelo indiano a partir de esterco bovino, contendo, em média, 63 % de metano. Os experimentos foram realizados com o motor operando, inicialmente, a gasolina na sua versão original e, posteriormente, com o sistema de alimentação a biogás. Para os ensaios foram medidas as rotações e o consumo energético do motor, além da tensão e corrente gerada para alimentar três potências resistivas iguais a 1000, 1200 e 1500 W. Para o conjunto motogerador alimentado a gasolina na sua versão original, observou-se uma potência média gerada de 840,2 W com tensão de 109 volts e eficiência do conjunto de 12,14 %. Para o conjunto motogerador operando a biogás utilizando o sistema de alimentação desenvolvido, observou-se uma potência média de 934,59 W, tensão 100,90 volts e eficiência de 8,22 %. Foi possível operar estavelmente o conjunto motogerador com combustível alternativo, biogás, utilizando o sistema de alimentação desenvolvido, substituindo em 100% o uso de gasolina.
The present work was conducted at the Unity of Production and Use of Biogas of Lavras Federal University. Its objective was to develop and to evaluate the biogas powering system in a stationary motor using biogas. A four-timing stationary motor with 4077 W nominal potency at a 4200 rpm rotation was used coupled to a generator of 2400 W with operational rotation of 3600 rpm. The biogas used in the experiment was produced in an Indian model biodigestor operated with bovine manure, containing an average of 63% methane. The experiments were accomplished with a gasoline operating motor on its original version adapted for biogas. For the experiment, the rotation and the energy consumption of the motor were measured, besides the tension and current generated to feed three resistance potencies of 1000, 1200, and, 1500 W. For the motogenerator group using the gasoline in its original version we observed an average potency of 840.2 W with an average tension of 109 volts and an average group efficiency of 12.14 %. For the motogerador group operating with biogas using the supply system developed here, we observed an average potency of 934.59 W, an average tension of 100.90 volts and an average efficiency of 8.22 %. It was possible to steadily operate the motogenerator with biogas as the alternative fuel, using the supply system developed substituting 100% of the gasoline used.
The present work was conducted at the Unity of Production and Use of Biogas of Lavras Federal University. Its objective was to develop and to evaluate the biogas powering system in a stationary motor using biogas. A four-timing stationary motor with 4077 W nominal potency at a 4200 rpm rotation was used coupled to a generator of 2400 W with operational rotation of 3600 rpm. The biogas used in the experiment was produced in an Indian model biodigestor operated with bovine manure, containing an average of 63% methane. The experiments were accomplished with a gasoline operating motor on its original version adapted for biogas. For the experiment, the rotation and the energy consumption of the motor were measured, besides the tension and current generated to feed three resistance potencies of 1000, 1200, and, 1500 W. For the motogenerator group using the gasoline in its original version we observed an average potency of 840.2 W with an average tension of 109 volts and an average group efficiency of 12.14 %. For the motogerador group operating with biogas using the supply system developed here, we observed an average potency of 934.59 W, an average tension of 100.90 volts and an average efficiency of 8.22 %. It was possible to steadily operate the motogenerator with biogas as the alternative fuel, using the supply system developed substituting 100% of the gasoline used.
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souza2010cinciadesempenho
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| Authors | ;Rodrigo G. Souza;Fabio M. Silva;Adriano C. Bastos |
| Journal | information and software technology |
| Year | 2010 |
| DOI |
10.1590/S1413-70542010000100024
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