Economical analysis of the indian model methane digestor

Detalhes bibliográficos
Autor(a) principal: Garcia, Eduardo Alfonso Cadavid
Data de Publicação: 2014
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/16170
Resumo: The methane digestor has been considered as an alternative energy source aiming to rural energy self-sufficiency. The Pantanal region offers favorable conditions for biogas production because of cattle manure abundance, and temperature suitable for the most efficient methane-producing bacteria. From analysis of biodigestors between 3.3 and 70 m3 total volume, it is concluded that maximum efficiency size relates to digestors above 70 m3. For units at the 3.3 to 53 m3 range an elasticity mean cost/daily production coefficient of -0.33 and a function coefficient of 1.49 were estimated, indicating receipts in increasing scale, the scale factor being 0.59 + 0.36. Budgets were specified for three production capacities (2.4, 6.2 and 13.2 m2 biogas. Day-1), investments being estimated from 9,302 (smallest unit) to 3,400 cruzeiros (largest unit) per m3 of gas, considering 11.7 years usefulness. For the three analyzed models, labour return rates, increasing with size, were estimated as 5, 17 and 31 cruzeiros when replacing diesel oil, and 6, 19 and 34 cruzeiros when substituting kerosene. The best alternative was for gasoline, while the replacement of petroleum gas showed the lowest profitability.
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spelling Economical analysis of the indian model methane digestorAnálise econômica do biodigestor modelo indianobiogas; bioenergy; economics; pantanal de mato grosso; oil subsidybiogás; bioenergia; economia; pantanal mato-grossense; subsídio petróleoThe methane digestor has been considered as an alternative energy source aiming to rural energy self-sufficiency. The Pantanal region offers favorable conditions for biogas production because of cattle manure abundance, and temperature suitable for the most efficient methane-producing bacteria. From analysis of biodigestors between 3.3 and 70 m3 total volume, it is concluded that maximum efficiency size relates to digestors above 70 m3. For units at the 3.3 to 53 m3 range an elasticity mean cost/daily production coefficient of -0.33 and a function coefficient of 1.49 were estimated, indicating receipts in increasing scale, the scale factor being 0.59 + 0.36. Budgets were specified for three production capacities (2.4, 6.2 and 13.2 m2 biogas. Day-1), investments being estimated from 9,302 (smallest unit) to 3,400 cruzeiros (largest unit) per m3 of gas, considering 11.7 years usefulness. For the three analyzed models, labour return rates, increasing with size, were estimated as 5, 17 and 31 cruzeiros when replacing diesel oil, and 6, 19 and 34 cruzeiros when substituting kerosene. The best alternative was for gasoline, while the replacement of petroleum gas showed the lowest profitability.O biodigestor tem sido considerado uma fonte alternativa de energia visando a auto-suficiência energética rural. O Pantanal oferece condições favoráveis para a produção de biogás, pela disponibilidade em matéria-prima (dejetos de bovinos) e pelas normais de temperatura apropriadas às bactérias metanogênicas mais eficientes na digestão. Da análise de biodigestores de 3,3 a 70 m3 de volume total, conclui-se que o tamanho de máxima eficiência corresponde a unidades acima de 70m3. Para unidades na faixa de 3,3 a 53 m3, foi estimado um coeficiente elasticidade custo médio-produção de biogás de -0,33 e um coeficiente função de 1,49, indicando retornos crescentes à escala. O fator de escala foi de 0,59 + 0,36. Foram especificados orçamentos de três capacidades de produção (2,4, 6,2 e 13,2 m3 de biogás/dia) estimando-se aplicações de Cr$ 9,302 (menor unidade) a Cr$ 3.400 (maior unidade) por m3 de produção, quando considerada a vida útil de 11,7 anos. Nas três unidades consideradas estimaram-se margens, crescentes com a escala, para o retorno da mão-de-obra de Cr$ 5, Cr$ 17 e Cr$ 31 (quando substituído óleo diesel) e Cr$ 6, Cr$ 19 e Cr$ 34 (quando substituído querosene). A melhor alternativa foi para gasolina, enquanto que a substituição de gás GLP apresentou os menores índices de rentabilidade.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGarcia, Eduardo Alfonso Cadavid2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16170Pesquisa Agropecuaria Brasileira; v.20, n.9, set. 1985; 999-1013Pesquisa Agropecuária Brasileira; v.20, n.9, set. 1985; 999-10131678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16170/12145info:eu-repo/semantics/openAccess2014-04-17T11:59:45Zoai:ojs.seer.sct.embrapa.br:article/16170Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-17T11:59:45Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Economical analysis of the indian model methane digestor
Análise econômica do biodigestor modelo indiano
title Economical analysis of the indian model methane digestor
spellingShingle Economical analysis of the indian model methane digestor
Garcia, Eduardo Alfonso Cadavid
biogas; bioenergy; economics; pantanal de mato grosso; oil subsidy
biogás; bioenergia; economia; pantanal mato-grossense; subsídio petróleo
title_short Economical analysis of the indian model methane digestor
title_full Economical analysis of the indian model methane digestor
title_fullStr Economical analysis of the indian model methane digestor
title_full_unstemmed Economical analysis of the indian model methane digestor
title_sort Economical analysis of the indian model methane digestor
author Garcia, Eduardo Alfonso Cadavid
author_facet Garcia, Eduardo Alfonso Cadavid
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Garcia, Eduardo Alfonso Cadavid
dc.subject.por.fl_str_mv biogas; bioenergy; economics; pantanal de mato grosso; oil subsidy
biogás; bioenergia; economia; pantanal mato-grossense; subsídio petróleo
topic biogas; bioenergy; economics; pantanal de mato grosso; oil subsidy
biogás; bioenergia; economia; pantanal mato-grossense; subsídio petróleo
description The methane digestor has been considered as an alternative energy source aiming to rural energy self-sufficiency. The Pantanal region offers favorable conditions for biogas production because of cattle manure abundance, and temperature suitable for the most efficient methane-producing bacteria. From analysis of biodigestors between 3.3 and 70 m3 total volume, it is concluded that maximum efficiency size relates to digestors above 70 m3. For units at the 3.3 to 53 m3 range an elasticity mean cost/daily production coefficient of -0.33 and a function coefficient of 1.49 were estimated, indicating receipts in increasing scale, the scale factor being 0.59 + 0.36. Budgets were specified for three production capacities (2.4, 6.2 and 13.2 m2 biogas. Day-1), investments being estimated from 9,302 (smallest unit) to 3,400 cruzeiros (largest unit) per m3 of gas, considering 11.7 years usefulness. For the three analyzed models, labour return rates, increasing with size, were estimated as 5, 17 and 31 cruzeiros when replacing diesel oil, and 6, 19 and 34 cruzeiros when substituting kerosene. The best alternative was for gasoline, while the replacement of petroleum gas showed the lowest profitability.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-17
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16170
url https://seer.sct.embrapa.br/index.php/pab/article/view/16170
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16170/12145
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.20, n.9, set. 1985; 999-1013
Pesquisa Agropecuária Brasileira; v.20, n.9, set. 1985; 999-1013
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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