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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/6009
Tipo: Artigo de Periódico
Artigo de Periódico
Título: Comparative energy life-cycle analyses of microalgal biomass production in open ponds and photobioreactors
Título(s) alternativo(s): Bioresource Technology
Autor(es): Jorquera, Orlando
Kiperstok, Asher
Sales, Emerson A.
Embiruçu, Marcelo
Ghirardi, Maria L.
Autor(es): Jorquera, Orlando
Kiperstok, Asher
Sales, Emerson A.
Embiruçu, Marcelo
Ghirardi, Maria L.
Abstract: An analysis of the energy life-cycle for production of biomass using the oil-rich microalgae Nannochloropsis sp. was performed, which included both raceway ponds, tubular and flat-plate photobioreactors for algal cultivation. The net energy ratio (NER) for each process was calculated. The results showed that the use of horizontal tubular photobioreactors (PBRs) is not economically feasible ([NER] < 1) and that the estimated NERs for flat-plate PBRs and raceway ponds is >1. The NER for ponds and flat-plate PBRs could be raised to significantly higher values if the lipid content of the biomass were increased to 60% dw/cwd. Although neither system is currently competitive with petroleum, the threshold oil cost at which this would occur was also estimated.
Palavras-chave: Photobioreactors
Oil production
Microalgae
Life-cycle analysis
Energy
Editora / Evento / Instituição: Elsevier
URI: http://www.repositorio.ufba.br/ri/handle/ri/6009
Data do documento: 2010
Aparece nas coleções:Artigo Publicado em Periódico (PEI)

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