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Pesquisa Operacional

Print version ISSN 0101-7438On-line version ISSN 1678-5142


GOLDBARG, Marco César; GOLDBARG, Elizabeth Ferreira Gouvêa  and  MEDEIROS NETO, Francisco Dantas de. Algoritmos evolucionários na determinação da configuração de custo mínimo de sistemas de co-geração de energia com base no gás natural. Pesqui. Oper. [online]. 2005, vol.25, n.2, pp.231-259. ISSN 0101-7438.

This work presents a special case of the general problem of determining the configuration of cogeneration systems in which the primary source of energy is natural gas. The objective is to determine the configuration with the minimum cost. Technical, operational and economic features impose constraints to the problem making it computationally hard to solve. Evolutionary algorithms based upon genetic, memetic and transgenetic algorithms are presented to solve the problem. A computational experiment with thirty-five instances generated in accordance with five distinct cogeneration cycles is reported. The results show that the transgenetic algorithm exhibits an overall best performance.

Keywords : cogeneration system; natural gas; evolutionary algorithm.

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