Consulta: subjectFacets:"Bioenergy"
Registros recuperados: 60
Data/hora: 09/06/2024 18:10:36

BIOMASS: BIOETHANOL TRANSFORMATION AND PRODUCTION PROCESS
Provedor de dados: 196
Autores: Fasioli Silva, Rebeca; Mascarenhas, Maria do Socorro; Batistote, Margareth.
The economic development of a country depends on the use of energy in various processes, the use of natural sources to generate energy resources has great potential. Environmental issues such as global warming have aroused interest around the world regarding bioenergy, such as biomasses that generate a low carbon impact and are susceptible to transformation, such as sugarcane and corn. The study aims to evaluate the main energy crops and their transformation processes, as well as obtain an overview of the main bioethanol producing countries and analyze the productivity of ethanol from sugarcane and corn. Exploratory research was carried out, using published databases related to the topic and classification by relevance. It was possible to observe that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy resources; Sugarcane and corn; Bioethanol; Bioenergy; Recursos energéticos; Cana e milho; Bioetanol; Bioenergia.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/7089

BIOGAS YIELD AND PRODUCTIVENESS OF SWINE MANURE FOR DIFFERENT REACTOR CONFIGURATIONS
Provedor de dados: 70
Autores: Lins,Marcos A.; Steinmetz,Ricardo L. R.; Amaral,André C. do; Kunz,Airton.
ABSTRACT The progression of the organic loading rate (OLR) up to a certain limit increases biogas production. The limit and operation range vary according to the configuration of the reactor and are associated with other variables that generate different results with respect to biogas yield (BY) and biogas productiveness (BP). The aim of this study was to investigate the effect of the OLR on the BY and BP from swine manure in continuous stirred tank reactors (CSTRs) and upflow anaerobic sludge blanket reactors (UASBs). In the assay with the CSTR, the best operational condition was at an OLR of 0.7 gVS add L−1 reactor d−1 and a hydraulic retention time (HRT) of 18 days. At this operational condition, 0.8 LN biogas gVS add−1 of BY and 0.6 LN biogas L−1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Sustainability; Swine farms.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600664

CHEMICAL AND ENERGETIC CHARACTERISTICS OF AFRICAN SWEET SORGHUM AS A SOURCE OF BIOENERGY
Provedor de dados: 70
Autores: Caraschi,José C.; Viana,Ronaldo da S.; Moreira,Bruno R. de A.; Prates,Glaucia A.
ABSTRACT The aim of this study was to evaluate the energetic potential achieved by the application of phyto-regulators to sweet sorghum cultivars. A randomized complete block design was used. Experiments were conducted using two sweet sorghum cultivars (BRS 508 and BRS 509), fourphyto-regulators (ethephon, ethyl-trinexapac, glyphosate, and sulfometuron-methyl), and a control; four replicates were performed 70 days after sowing, at the beginning of the flowering phase of the plants, with the aid of a CO2-pressurized coastal sprayer. The plants were harvested after 40 days, with the stems being cleared at the height of the apical bud, and were subjected to grinding for the extraction of broth. The following analyses were carried out: chemical (total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Green Energy; Bioenergy; Biofuel; Renewable energy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400426

Impact of irrigation on yield and energy balance of the production of oil and cake of two sunflower varieties
Provedor de dados: 70
Autores: Jordan,Rodrigo A.; Gomes,Eder P.; Biscaro,Guilherme A.
The energy balance for the production of sunflower oil and cake was carried out during the agricultural and industrial stage phase, where it was considered a cold extraction by hydraulic pressing, with the plant location in a rural area with a radius of 30km range. Data on productivity was used in two varieties of sunflower (Helio 358 and Aguará 04) grown in different seasons (2007/2008, 2008/2009), under different irrigation levels. Data showed that irrigation resulted in an increase in productivity of both varieties, and the best response was observed for Aguará 04 variety. Moreover, the increased intensity of irrigation negatively affected the energy balance, reducing the ratio between energy produced and energy used in the production chain. The most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Sunflower; Irrigation; Energy balance.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600006

BIOHYDROGEN PRODUCTION IN AnSBBR IN FED-BATCH FROM STARCH EFFLUENT: INFLUENCE OF ORGANIC LOAD
Provedor de dados: 70
Autores: Tonello,Tamiris U.; Andreani,Cristiane L.; Mari,Angelo G.; Fernandes,José R.; Gomes,Simone D.
ABSTRACT The hydrogen is a fuel with a high energy density. Studies have sought to verify the potential of different residues and configurations of reactors in the production of biohydrogen. This study evaluated the influence of the organic loading rate on the production of biohydrogen from cassava starch wastewater (CSW) in anaerobic sequencing batch biofilm reactors (AnSBBR) operated in a fed-batch. In the tests, the organic loading rates of 9.0; 13.5 and 18.0 gCT L−1 d−1 were used, at cycle times (CT) of 4; 4 and 2 h (tests I, II and III, respectively). The reactor was inoculated with sludge from a pilot anaerobic reactor used in the treatment of CSW, heat treated (heated at 90°C for 15 min). With the increase of the organic load (condition I to II)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fed-batch; Fermentative process; Bioenergy; Cassava starch wastewater.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500768

Yield and quality of elephant grass biomass produced in the cerrados region for bioenergy
Provedor de dados: 70
Autores: Flores,Rilner A.; Urquiaga,Segundo; Alves,Bruno J. R.; Collier,Leonardo S.; Boddey,Robert M.
The objective of this study was to evaluate the performance of two genotypes of elephant grass, fertilized with and without N, for biomass production for energy use under the edaphoclimatic conditions of the Cerrado. The genotypes Roxo and Paraíso, grown in a field experiment in a Latosol in the Cerrado region were evaluated for biomass yield, nitrogen accumulation, C:N and stem:leaf ratios, fibre, ash and P and K contents and calorific value. The accumulated dry biomass ranged from 30 to 42 Mg ha-1 and showed no response to nitrogen fertilization with the lowest biomass obtained by the genotype Paraíso and the highest by Roxo. The total N accumulation followed the same pattern as for dry matter, ranging from 347 to 539 kg N ha-1. C:N and stem:leaf ratio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pennisetum purpureum; Bioenergy; Nitrogen fertilizer.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000500003

Performance of sweet potato clones for bioethanol production in different cultivation periods
Provedor de dados: 75
Autores: Oliveira,Alisson MS; Blank,Arie F; Alves,Rodrigo P; Arrigoni-Blank,Maria F; Maluf,Wilson R; Fernandes,Roberta PM.
RESUMO A batata doce é tecnicamente uma planta perene, plantada e explorada como anual. A identificação do período de cultivo e de clones é importante para melhorar o aproveitamento dessa cultura, tanto na alimentação humana e animal, como para produção de etanol. Objetivou-se avaliar o desempenho de clones de batata doce cultivados em diferentes períodos de cultivo para a produção de bioetanol. Foram testados nas parcelas três períodos de cultivo (3, 5 e 7 meses), e nas subparcelas, cinco clones de batata doce (acessos IBP-007, IBP-038, IBP-075, IBP-079 e IBP-149), além da cultivar Brazlândia Rosada. Foram analisados o teor de matéria seca de raiz, amido e amilose e rendimento de amido e etanol. O clone IPB-007 apresentou elevados valores para rendimento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ipomoea batatas; Plant science; Bioenergy; Ethanol.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000100057

National commitments and participation of Embrapa.
Provedor de dados: 14
Autores: GAMBETTA, R.; LEITAO, R. C.; OTENIO, M. H.; KUNZ, A.
bitstream/item/222450/1/GAMBETTA-SEG-sem-vinculacao-SDG-7-CAP-1.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Objetivos de Desenvolvimento Sustentável; Organização das Nações Unidas; Biocombustível; Bioenergia; Agricultura Sustentável; Desenvolvimento Sustentável; Biofuels; Bioenergy; Sustainable agriculture; Sustainable development; Renewable energy sources.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131173

Manejo da adubação fosfatada para cana-de-açúcar no Cerrado.
Provedor de dados: 14
Autores: REIN, T. A.; SOUSA, D. M. G. de; SANTOS JUNIOR, J. de D. G. dos; NUNES, R. de S.; KORNDORFER, G. H.
bitstream/item/161535/1/CT-29.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cana-de-açúcar; Agroenergia; Brasil; Buildup fertilization; Phosphate; Acid soil; Savanna.; Fosfatase; Fósforo; Adubação a Lanço; Cerrado; Saccharum Officinarum; Solo Ácido.; Brazil; Bioenergy; Phosphorus; Sugarcane.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026343

Recomendações para correção da acidez do solo para cana-de-açúcar no Cerrado.
Provedor de dados: 14
Autores: SOUSA, D. M. G. de; REIN, T. A.; NUNES, R. de S.; SANTOS JUNIOR, J. de D. G. dos.
bitstream/item/161534/1/Comtec-177.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Correção da acidez do solo; Cana-de-açúcar; Agroenergia; Brasil; Savanna; Calagem; Cálcio; Magnésio; Calcário; Cerrado; Gesso; Saccharum Officinarum; Solo; Brazil; Bioenergy; Gypsum; Limestone; Liming; Soil; Sugarcane.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026363

Sistema plantio direto de cana-de-açúcar no Cerrado.
Provedor de dados: 14
Autores: SANTOS JUNIOR, J. de D. G. dos; SA, M. A. C. de; OLIVEIRA, C. M. de; FRANZ, C. A. B.; REIN, T. A.; SOUSA, D. M. G. de.
bitstream/item/131276/1/cirtec-30.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Goiás; Cana-de-açúcar; Agroenergia; Brasil; Savanna; No-tillage system; Stalk yield.; Plantio direto; Produtividade; Colheita mecânica; Compactação do solo; Cerrado; Saccharum Officinarum.; Brazil; Bioenergy; Soil compaction; Sugarcane.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026353

Manejo do palhiço residual n a cultura de cana-de-açúcar no Cerrado: primeira aproximação.
Provedor de dados: 14
Autores: SA, M. A. C. de; FRANZ, C. A. B.; SANTOS JUNIOR, J. de D. G. dos; REIN, T. A.; BUFON, V. B.; CARVALHO, A. M. de; MULLER, A. G.
bitstream/item/131266/1/cirtec-27.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Goiás; Cana-de-açúcar; Agroenergia; Brasil; Decomposition; Second-generation ethanol; Savanna.; Colheita mecânica; Cana de açúcar; Canavial; Palha; Latossolo vermelho; Cerrado; Colheita; Conservação do Solo; Decomposição; Matéria Orgânica; Saccharum Officinarum.; Brazil; Bioenergy; Harvesting; Organic matter; Soil conservation; Straw; Sugarcane.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026337

Escarificação do solo em soqueiras de cana-de-açúcar.
Provedor de dados: 14
Autores: SA, M. A. C. de; SANTOS JUNIOR, J. de D. G. dos; FRANZ, C. A. B.; REIN, T. A.
bitstream/item/131269/1/cirtec-28.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Goias; Cana-de-açúcar; Escarificação do solo; Preparo do solo; Agroenergia; Brasil; Soil tillage; Soil bulk density; Agricultural machinery; Soil scarification; Savanna.; Cerrado; Compactação do Solo; Maquina Agrícola; Produtividade; Saccharum Officinarum.; Brazil; Bioenergy; Sugarcane.; Soil compaction.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026342

Crescimento do setor sucroalcooleiro na Região do Centro-Oeste brasileiro e os efeitos na ocupação de Mão-de-obra no período de 2001 a 2008.
Provedor de dados: 14
Autores: BALSADI, O. V.; SILVA, A. R. da; VELOSO, R. F.
bitstream/item/75857/1/bolpd-275.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cana-de-açúcar; Agribusiness development; Ethanol industry; Production; Productivity.; Cerrado; Saccharum Officinarum.; Bioenergy; Sugar industry; Sugarcane.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/902767

Bioeletricidade no setor sucroalcooleiro paulista: participação no mercado de carbono, perspectivas e sustentabilidade.
Provedor de dados: 14
Autores: BATISTA, E. R.; RAMOS, N. P.; LUCHIARI JUNIOR, A.
bitstream/item/12264/1/documentos_78.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mercado de carbono; Mecanismo de desenvolvimento limpo; Cana-de-açúcar.; Bioenergia; Eletricidade; Biomassa.; Bioenergy; Sugarcane.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/83097

Carbon Neutral Brazilian Beef: A New Concept for Sustainable Beef Production in the Tropics.
Provedor de dados: 14
Autores: ALVES, F. V.; ALMEIDA, R. G. de; LAURA, V. A.
Agriculture in Brazil, as well as worldwide, has been striving to meet the increasing demand for food, timber, fibers and bioenergy. While larger production is necessary, restrictions for expansion over natural environments increase. For the Brazilian beef industry, the current trend is towards little increase on herd numbers, despite reduction on grazing areas. This will lead to intensification of sown pastures, optimizing use of inputs, along with improved management, feeding and introduction of technologies like integrated systems. There is also a growing concern from the sector towards environmental preservation and the need for a more efficient use of inputs and natural resources if future demands are to be met. Therefore, agriculture will have to...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sustainable beef production; Greenhouse gases emissions; Bioenergy.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1080610

MACAÚBA: sistema produtivo para produção de óleo e energia no Semiárido: programa 30: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a macaúba e o desenvolvimento de um sistema produtivo para a produção de óleo e energia, em regiões semiáridas. A pesquisadora Simone Fávaro, da Embrapa Agroenergia e o pesquisador Humberto Umbelino, da Embrapa Meio-Norte são alguns dos convidados do programa. Eles falam sobre os estudos da Embrapa para viabilizar a recomendação de um sistema de cultivo da macaúba para a região do Semiárido Nordestino. No programa, você vai conhecer o potencial da macaúba para a produção de óleo e energia.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Região semiárida; Energia; Macaúba; Óleo; Bioenergia; Oils; Energy; Bioenergy.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124117

Alelopatia de sorgo-sacarino na soja cultivada em sucessão.
Provedor de dados: 14
Autores: GARCIA, R. A.; SUTIER, G. A. da S.
Os resíduos do sorgo-sacarino, pela liberação de substâncias alelopáticas, podem afetar negativamente o desenvolvimento da cultura em sucessão. Nesse contexto, objetivou-se avaliar os efeitos dos resíduos de duas cultivares de sorgo-sacarino na soja Semeada em sucessão, em função de intervalos para semeadura após o manejo do sorgo. O experimento foi conduzido em casa de vegetação na Embrapa Agropecuária Oeste, em Dourados, MS, em vasos com capacidade de 14 litros. O delineamento utilizado foi inteiramente casualizado, em esquema fatorial 2x4, com quatro repetições. Os tratamentos foram constituídos por duas cultivares de sorgo (BRS 506 e BRS 511) e quatro intervalos para semeadura da soja após manejo da gramínea (0, 3, 6 e 9 dias). As plantas de sorgo...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Crescimento radicular; Agroenergia; Sorgoleone; Root; Growth.; Palhada.; Bioenergy; Straw.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054658

Potencial energético das biomassas de canjiqueira e do cambará.
Provedor de dados: 14
Autores: GALVANI, F.; OKAMURA, L. A.; SALIS, S. M.
Resumo: A utilização de fontes renováveis na matriz energética mundial, especialmente a proveniente da biomassa, é um dos maiores desafios da sociedade atual na busca por alternativas ambientalmente favoráveis e economicamente viáveis. O uso de resíduos de biomassa tem se mostrado ser essa alternativa para a produção de energia renovável, seja por meio da queima direta, ou pela fabricação de bioproduto. Neste sentido, o objetivo deste trabalho é caracterizar química e fisicamente os resíduos de duas espécies lenhosas nativas, canjiqueira (Byrsonima cydoniifolia) e cambará (Vochysia divergens), provenientes do manejo de limpeza do campo no Pantanal para avaliar e identificar suas potencialidades de aplicação em novos produtos e/ou geração de energia. As...
Tipo: Folhetos
Palavras-chave: Bioenergia; Biomassa; Recurso Energético; Bioenergy; Biomass production; Energy resources.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137802

Carbon conversion efficiency and population dynamics of a marine algae–bacteria consortium growing on simplified synthetic digestate: First step in a bioprocess coupling algal production and anaerobic digestion
Provedor de dados: 5
Autores: Vasseur, Christophe; Bougaran, Gael; Garnier, Matthieu; Hamelin, Jérôme; Leboulanger, Christophe; Le Chevanton, Myriam; Mostajir, Behzad; Sialve, Bruno; Steyer, Jean-philippe; Fouilland, Eric.
Association of microalgae culture and anaerobic digestion seems a promising technology for sustainable algal biomass and biogas production. The use of digestates for sustaining the growth of microalgae reduces the costs and the environmental impacts associated with the substantial algal nutrient requirements. A natural marine algae–bacteria consortium was selected by growing on a medium containing macro nutrients (ammonia, phosphate and acetate) specific of a digestate, and was submitted to a factorial experimental design with different levels of temperature, light and pH. The microalgal consortium reached a maximum C conversion efficiency (i.e. ratio between carbon content produced and carbon supplied through light photosynthetic C conversion and acetate)...
Tipo: Text
Palavras-chave: Optimization; Nannochloris; Heterotrophic bacteria; Anaerobic digestion; Bioenergy.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00085/19642/17419.pdf

Avaliação de clones de Eucalyptus em diferentes locais visando à produção de carvão vegetal
Provedor de dados: 190
Autores: Neves, Thiago Andrade; Protásio, Thiago de Paula; Couto, Allan Motta; Trugilho, Paulo Fernando; Silva, Vinícius Oliveira; Vieira, Carlos Magno Melo.
Os objetivos desse trabalho foram avaliar a qualidade da madeira e do carvão vegetal de três clones de Eucalyptus plantados em diferentes locais e verificar a relação funcional existente entre a densidade básica e a profundidade de penetração do pino do Pilodyn. Foram avaliados três clones de Eucalyptus e amostradas quatro árvores por clone em cada local. Determinou-se a profundidade de penetração de um pino de aço do Pilodyn a 1,30 m de altura do solo (DAP), a densidade básica média (DBm), a densidade básica no DAP, o poder calorífico superior e os teores de lignina, extrativos totais, cinzas, holocelulose e a análise química elementar (C, H, N e O). A madeira foi carbonizada e o carvão produzido foi avaliado quantitativamente e qualitativamente. Na...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Biomass; Wood quality Bioenergia; Biomassa; Qualidade da madeira.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/275

Dendroenergetical characterization of Eucalyptus benthamii trees
Provedor de dados: 190
Autores: Lima, Edson Alves de; Silva, Helton Damin da; Lavoranti, Osmir José.
Eucalyptus benthamii has shown to be the most proeminent specie for regions with frost incidence. The objective of this work was to classify selected Eucalyptus benthamii trees for breeding by importance ordening dendrometric and energetic characteristics, useful for this work 91 disks of DBH were collected, from three plantations at Guarapuava municipality, Parana state, with geographical coordinates 25º 23’ 26’’ S e 51º 27’ 15” E and 1,120 m high. Wood basic density, volume, mass, superior calorific power, energertic density and energetic potential were evaluated. Charcoal yield, condensed and non-condensable gases, fixed carbon, volatiles, ashes, superior calorific power and energetic potential were also evaluated. From the measured characteristics, at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Forest biomass; Frost. Bioenergia; Biomassa florestal; Geada.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/192

Potencial siderúrgico e energético do carvão vegetal de clones de Eucalyptus spp aos 42 meses de idade
Provedor de dados: 190
Autores: Protásio, Thiago de Paula; Couto, Allan Motta; Reis, Aliny Aparecida dos; Trugilho, Paulo Fernando; Godinho, Tayana Pedrozo.
O objetivo deste trabalho foi avaliar o potencial energético e siderúrgico do carvão vegetal de clones de Eucalyptus grandis e Eucalyptus urophylla aos 42 meses de idade. Foram utilizadas madeiras de sete clones. As carbonizações foram realizadas em um forno elétrico (mufla) com temperatura final de 450 °C. Determinaram-se os rendimentos da carbonização, a composição química imediata e elementar, o poder calorífico superior e inferior, a densidade relativa aparente e energética e o estoque em carbono fixo. Para a análise dos dados utilizou-se o método de componentes principais. Os clones G129 e U059 se destacaram para o uso siderúrgico e energético, principalmente pelos maiores valores de densidade relativa aparente e energética, estoque em carbono fixo,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Engenharia Florestal; Energia de Biomassa Eucalipto; Bioenergia; Biorredutor Eucalyptus; Bioenergy; Bio-reducer.
Ano: 2013
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/448

Interdependencies in the Energy-Bioenergy-Food Price Systems: A Cointegration Analysis
Provedor de dados: 31
Autores: Ciaian,   Pavel; Kancs,   d'Artis.
The present paper examines a long-run relationship between the energy, bioenergy and food prices. In the recent years the bioenergy production has increased significantly around the world. The increase has been driven by rising energy prices as well as by environmental policies aiming at reducing the harmful effects of conventional sources of energy, such as climate change. Bioenergy, in turn, affects agricultural markets, because it uses agricultural commodities as inputs. The theoretical model we develop predicts that, because of price inelastic food demand, the agricultural price increase may be substantial. The empirical findings confirm the theoretical hypothesis that energy prices do affect prices of agricultural commodities. However, the...
Tipo: Conference Paper or Presentation
Palavras-chave: Energy; Bioenergy; Crude oil; Renewable fuel; Cointegration; Agricultural and Food Policy; Demand and Price Analysis; International Development; Resource /Energy Economics and Policy; C14; C22; C51; Q11; Q13; Q42.
Ano: 2010
URL: http://purl.umn.edu/61009

BIOMASS FOR ENERGY USES – EXPLORING PRODUCTION POTENTIAL AND THE  PRODUCTION COSTS FOR AUSTRIA
Provedor de dados: 31
Autores: Sinabell,   Franz; Schmid,   Erwin.
The expansion of renewable energy sources is an EU strategy to reduce the dependency on fossil fuels and to curb carbon dioxide emission. According to studies estimating technical potentials, significant land resources can be mobilised for the production of energy crops. We estimate the costs of a policy aiming at a stimulation of biomass and bioenergy production in Austria using a model that integrates the production of food, feed, agricultural and forest biomass as well as bioenergy products. The results show that an expansion of domestic biomass and bioenergy production is costly and it diminishes the production of food and feed.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Food and biomass production; Land use modeling; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/52665

Bioenergy production in Finland and its effects on regional growth and employment
Provedor de dados: 31
Autores: Simola,   Antti; Kinnunen,   Jouko; Torma,   Hannu; Kola,   Jukka.
Finnish national climate and energy strategy sets the share of renewables in energy use to 38%, and a significant amount of this should be covered by biomass based energy. In 2020 forestry is set to contribute 24 TWh and agriculture 4-5 TWh to energy production. In particular, bioenergy resources are considerable in the rural areas. However, the regional aspects have gone without investigation before this study.   This study is a general equilibrium analysis. We considered only the by-products and waste material from agriculture and forestry as the resources for bioenergy, and only heat and power production were considered as the potential end uses. A regional CGE-model (RegFinDynBio) was used to analyse the impact of increased use of bioenergy potential....
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Agriculture and forestry; Regional economy; Growth; Employment; CGE-modelling; Agricultural and Food Policy; Institutional and Behavioral Economics; Political Economy.
Ano: 2010
URL: http://purl.umn.edu/90820

Biomass Supply from Alternative Cellulosic Crops and Crop Residues: A Preliminary Spatial Bioeconomic Modeling Approach
Provedor de dados: 31
Autores: Egbendewe-Mondzozo,   Aklesso; Swinton,   Scott M.; Izaurralde,   R. Cesar; Manowitz,   David H.; Zhang,   Xuesong.
This paper introduces a spatial bioeconomic model for study of potential cellulosic biomass supply at regional scale. By modeling the profitability of alternative crop production practices, it captures the opportunity cost of replacing current crops by cellulosic biomass crops. The model draws upon biophysical crop input-output coefficients, price and cost data, and spatial transportation costs in the context of profit maximization theory. Yields are simulated using temperature, precipitation and soil quality data with various commercial crops and potential new cellulosic biomass crops. Three types of alternative crop management scenarios are simulated by varying crop rotation, fertilization and tillage. The cost of transporting biomass to a specific...
Tipo: Working or Discussion Paper
Palavras-chave: Biomass production; Bioenergy supply; Biofuel policy; Bioenergy; Cellulosic ethanol; Agro-ecosystem economics; Ecosystem services economics; Agro-environmental trade-off analysis; Mathematical programming; EPIC; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy; Q16; Q15; Q57; Q18.
Ano: 2010
URL: http://purl.umn.edu/98277

Biomass for energy production in the context of selected European and international policy objectives
Provedor de dados: 31
Autores: Becker,   Arno.
Biomass based energy production has attained a significant market share within the developing renewable energy market. In comparison to alternative renewable energy sources, biomass has several special features: it is not inexhaustible in the short term (limitation of arable land) and it is not only an energy source. Other usages like food or feed compete with energy production for this resource. A number of problems arise which have a direct impact on the fulfillment of policy objectives which are connected with its promotion. Primarily, the production of bioenergy has significant impacts on coupled biomass markets. Further, a change in production intensity or arable land use increases the use of nutrient loads and agro - chemicals. When evaluating...
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Biofuels; Biomass production; Impact analysis.; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/43974

An Illustrated Guide to Research Findings from USDA's Economic Research Service
Provedor de dados: 31
Autores: Economic Research Service.
This book contains a sampling of recent ERS research illustrating the breadth of the Agency’s research on current policy issues: from biofuels to food consumption to land conservation to patterns of trade for agricultural products. What you won’t find in this collection is any mention of economists’ favorite analytic tools (regression analyses, for example, and coefficients of variation). We wanted this guide to highlight results, not process. Even so, the findings on display here are all based on rigorous and robust application of such tools as well as use of the latest econometric techniques.
Tipo: Report
Palavras-chave: Farm Policy; Risk Management; Food Consumption; Food Nutrition Assistance; Conservation Policy; Food Assistance and Nutrition Programs; Food Security; Agricultural Productivity in the U.S.; Farm Structure; Rural Population; Environmental Interactions; Invasive Species Management; Bioenergy; Global Food Markets; NAFTA; Organic Agriculture; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 2009
URL: http://purl.umn.edu/58341

ANÁLISE DAS TRANSAÇÕES NA CADEIA PRODUTIVA DE ENERGIA DE BIOMASSA DE ORIGEM FLORESTAL
Provedor de dados: 31
Autores: Simioni,   Flavio Jose; Hoeflich,   Vitor Afonso; Siqueira,   Elisabete Stradiotto.
The aim of this paper was to analyze the characteristics of the transactions between economic agents to identify their attributes and to determine their impacts on the governance structure of the forest biomass energy production chain in Lages, Santa Catarina state. The Economic Transaction Cost (ETC) was used as theoretical support. Fifteen entrepreneurs or company directors were interviewed to identify and characterize the transactions between the chain’s segments and to analyze the governance structure adopted by the agents. The companies involved in this study are located in twenty four municipal districts in the region. Analysis of the transactions between the agents demonstrated an increasing search for contracts, determined mainly by the need to...
Tipo: Journal Article
Palavras-chave: Bioenergy; Forest production; Transaction cost; Agribusiness; Agricultural Finance; Industrial Organization.
Ano: 2009
URL: http://purl.umn.edu/90412

Design of substrate supply contracts for biogas plants
Provedor de dados: 31
Autores: Reise,   Christian; Liebe,   Ulf; Musshoff,   Oliver.
For a sustainable development of energy production in biogas plants, the continuous supply with substrates is essential. To the authors’ knowledge, there have not been carried out any quantitative investigations of farmers’ choices with regard to supply contracts for biogas plants. Thus, it has been only possible to a limited extent to make predictions for a targeted design of supply contracts. We therefore investigated different factors, which might be relevant for the conclusion of substrate supply contracts, by conducting a survey with 178 German farmers. The survey included a choice experiment, in which participants were confronted with different contract attributes (features). These attributes were varied systematically and thus revealed the influence...
Tipo: Presentation
Palavras-chave: Renewable energy; Bioenergy; Substrate supply contract; Contract design; (labeled) choice experiment; Resource /Energy Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/124428

Impact of Off-Farm Employment on Farmers’ Willingness to Grow Switchgrass and Miscanthus
Provedor de dados: 31
Autores: Gedikoglu,   Haluk.
Current study analyzed the socio-economic factors that impact farmers’ willingness to grow switchgrass and Miscanthus in Missouri and Iowa. The results of study show that current level of farmers’ willingness to grow either crop is low. Hence, there are barriers to accomplishing to goal of producing 21 billion gallons of cellulosic ethanol by 2022, as set by the Energy Independence and Security Act of 2007. The results of the ordered probit regressions show that farmers with higher education levels and smaller farm sales are more willing to grow energy crops. The results of this study show that currently growing energy crops is more attractive to small farms as a source of crop diversification, rather than an alternative crop production in the big scale by...
Tipo: Presentation
Palavras-chave: Bioenergy; Cellulosic Ethanol; Switchgrass; Miscanthus; Ordered Probit; Agricultural and Food Policy; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/119663

Determining the Optimal Location for Collocating a Louisiana Sugar Mill and a New Cellulosic Ethanol Plant
Provedor de dados: 31
Autores: Darby,   Paul M.; Mark,   Tyler B.
This paper examines the possibility of collocating a cellulosic ethanol processing plant with certain Louisiana sugar mills, chosen based on their strategic locations and cane grinding capacity. The prospective plants are compared based on transportation costs and overall economic performance.
Tipo: Presentation
Palavras-chave: Cellulosic ethanol; Advanced biofuels; Sugarcane; Energy cane; Bioenergy; Agribusiness; Production Economics; Resource /Energy Economics and Policy; Q16; Q42.
Ano: 2012
URL: http://purl.umn.edu/119787

Effects of Increased Biofuels on the U.S. Economy in 2022
Provedor de dados: 31
Autores: Gehlhar,   Mark J.; Somwaru,   Agapi; Somwaru,   Agapi.
Achieving greater energy security by reducing dependence on foreign petroleum is a goal of U.S. energy policy. The Energy Independence and Security Act of 2007 (EISA) calls for a Renewable Fuel Standard (RFS-2), which mandates that the United States increase the volume of biofuel that is blended into transportation fuel from 9 billion gallons in 2008 to 36 billion gallons by 2022. Long-term technological advances are needed to meet this mandate. This report examines how meeting the RFS-2 would affect various key components of the U.S. economy. If biofuel production advances with cost-reducing technology and petroleum prices continue to rise as projected, the RFS-2 could provide economywide benefits. However, the actual level of benefits (or costs) to the...
Tipo: Report
Palavras-chave: Bioenergy; Economywide; Ethanol; Petroleum; Trade; Macroeconomic factors; RFS-2; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/96758

The GHG Balance of Biofuels Taking into Account Land Use Change (Power Point)
Provedor de dados: 31
Autores: Lange,   Mareike.
The contribution of biofuels to the saving of greenhouse gas (GHG) emissions has recently been questioned because of emissions resulting from land use change (LUC) for bioenergy feedstock production. We investigate how the inclusion of the carbon effect of LUC into the carbon accounting framework, as scheduled by the European Commission, impacts on land use choices for an expanding biofuel feedstock production. We first illustrate the change in the carbon balances of various biofuels, using methodology and data from the IPCC Guidelines for National Greenhouse Gas Inventories. It becomes apparent that the conversion of natural land, apart from grassy savannahs, impedes meeting the EU’s 35% minimum emissions reduction target for biofuels. We show that the...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use change emissions; Bioenergy; European policy; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/114406

Cost Analysis of Alternative Harvest and Storage Methods for Switchgrass in the Southeastern U.S.
Provedor de dados: 31
Autores: Larson,   James A.; Mooney,   Daniel F.; English,   Burton C.; Tyler,   Donald D.
This study evaluated the potential impacts of dry matter losses from alternative harvest and storage methods on the costs of growing switchgrass for energy production. Data from a switchgrass bale harvest and storage experiment at Milan, TN, indicate that storage losses for covered rectangular bales were greater than for covered round bales. In addition, the cost of delivered feedstock increased with longer storage times because of larger dry matter losses. Even though storage losses were higher with uncovered large round bales, production costs were the lowest because costs of storage were minimal compared to other storage methods.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Dry matter loss; Storage; Production Economics; D20; D21; D81; D86; Q13; Q42; P42.
Ano: 2010
URL: http://purl.umn.edu/56518

: A bioüzemanyagok adózása Magyarországon
Provedor de dados: 31
Autores: Palyi,   Zoltan.
Megállapítható, hogy a bioetanol adózási helyzete kedvezőbb, mint a biodízelé. Az etanol forgalma dinamikusan növekszik. Magyarországon jelenleg több mint 200 benzinkúton kapható E85 üzemanyag.  Annak érdekében, hogy Magyarországon legalább 10% legyen a közlekedési szektorban a „bio” arány, célszerű első lépésként az üzemanyagokban lévő biokomponens-arányt a jelenlegi 4,8%-ról 6,0%-ra, majd 1-2 év múlva 8,0%-ra emelni. A biodízelnél, például a B40- ---------------------------------------------- Apparently the status of bioethanol in terms of taxation is more favourable than that of biodiesel. Ethanol sales are growing dynamically. The E85 fuel is currently sold at more than 200 petrol stations in Hungary.  In order to increase the share of “bio” to at...
Tipo: Article
Palavras-chave: Bioenergetika; Bioüzemanyag; Gabona-felhasználás; Adózás; Bioenergy; Biofuels; Ethics; Using cereals; Taxation; Agricultural and Food Policy; Agricultural Finance.
Ano: 2011
URL: http://purl.umn.edu/119902

Modeling Cellulosic Bioenergy Feedstock Supply
Provedor de dados: 31
Autores: Archer,   David W.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Feedstock; GIS; Corn stover; Wheat straw; Environmental Economics and Policy; Production Economics; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/61372

Implications of a Carbon-Based Energy Tax for U.S. Agriculture
Provedor de dados: 31
Autores: Schneider,   Uwe A.; McCarl,   Bruce A.
Policies to mitigate greenhouse gas emissions are likely to increase energy prices. Higher energy prices raise farmer costs for diesel and other fuels, irrigation water, farm chemicals, and grain drying. Simultaneously, renewable energy options become more attractive to agricultural producers. We consider both of these impacts, estimating the economic and environmental consequences of higher energy prices on U.S. agriculture. To do this we employ a price-endogenous agricultural sector model and solve that model for a range of carbon-tax-based energy price changes. Our results show mostly positive impacts on net farm income in the intermediate run. Through market price adjustments, fossil fuel costs are largely passed on to consumers. Additional farm...
Tipo: Journal Article
Palavras-chave: Energy tax; Greenhouse gas policy; U.S. agricultural sector; Bioenergy; Mathematical programming; Environmental Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/10242

Irreversible Investment, Uncertainty and Ambiguity: The Case of the Bioenergy Sector
Provedor de dados: 31
Autores: Jouvet,   Pierre-Andre; Le Cadre,   Elodie; Orset,   Caroline.
We analyse the decision of an agent to invest and engage in industrial activities that are characterized by two forms of uncertainty: market size uncertainty and competitive effect uncertainty. We apply our model on the bioenergy industries. We compare the case of an ambiguity neutral agent with that of an ambiguity adverse agent. We show that the investment decision of an agent depends on the effects of both the capital investment and the level of production on the cost and the uncertainty the agent is confronted with. Moreover, we find that ambiguity aversion tends to decrease the agent's optimal levels of production and investment. Our numerical analysis of the French case illustrates the different effects associated with market size uncertainty and...
Tipo: Working or Discussion Paper
Palavras-chave: Ambiguity; Bioenergy; Irreversible investment; Uncertainty; Agricultural and Food Policy; D21; D81; Q42; Q23.
Ano: 2011
URL: http://purl.umn.edu/115437

Farmers’ Willingness to Grow Sweet Sorghum as a Cellulosic Bioenergy Crop: A Stated Choice Approach
Provedor de dados: 31
Autores: Bergtold,   Jason S.; Fewell,   Jason E.; Williams,   Jeffery R.
Biofuel production must increase to 36 billion gallons by the year 2022, according to government mandates. The majority of this fuel must be produced from “advanced” or second-generation biofuel feedstocks after 2015. Advanced biofuel feedstocks include annual crops such as sweet sorghum. Kansas farmers are poised to be major producers of sweet sorghum for biofuels. A stated choice survey was administered to Kansas farmers to assess their willingness to grow sweet sorghum for biofuels under various contracting scenarios. Results show that farmers are willing to grow biomass for bioenergy under contract and that insurance availability plays an important role in their decision.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Cellulosic; Farm data; Stated choice; Sweet sorghum; Crop Production/Industries; Farm Management; Production Economics; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/108068

The Ethanol Decade:  An Expansion of U.S. Corn Production, 2000-09
Provedor de dados: 31
Autores: Wallander,   Steven; Claassen,   Roger; Nickerson,   Cynthia J.
The recent 9-billion-gallon increase in corn-based ethanol production, which resulted from a combination of rising gasoline prices and a suite of Federal bioenergy policies, provides evidence of how farmers altered their land-use decisions in response to increased demand for corn. As some forecasts had suggested, corn acreage increased mostly on farms that previously specialized in soybeans. Other farms, however, offset this shift by expanding soybean production. Farm-level data reveal that the simultaneous net expansion of corn and soybean acreage resulted from a reduction in cotton acreage, a shift from uncultivated hay to cropland, and the expansion of double cropping (consecutively producing two crops of either like or unlike commodities on the same...
Tipo: Report
Palavras-chave: Agricultural Resource Management Survey (ARMS); Bioenergy; Ethanol; Indirect effects; Land use; Corn production; Environmental impacts; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/117982

Production and evaluation of briquettes from urban pruning residue and sugarcane bagasse
Provedor de dados: 91
Autores: Smith,Ana K. de G.; Alesi,Letícia S.; Varanda,Luciano D.; Silva,Diego A. da; Santos,Luis R. O.; Yamaji,Fábio M.
ABSTRACT The search for new alternatives in order to reuse residues is one way to minimize environmental impacts by promoting sustainable practices. This study analyzed the technical feasibility of briquettes production from urban pruning residue and sugarcane bagasse, turning them into a product with higher added value besides directing their use and reducing their improper disposal. Five treatments were studied from different ratios of the two residues: T1, T2, T3, T4 and T5, respectively made of 100% of urban pruning; 50% urban pruning and 50% sugarcane bagasse; 25% urban pruning and 75% sugarcane bagasse; 10% urban pruning and 90% sugarcane bagasse; 100% sugarcane bagasse. The materials were characterized physically, chemically and energetically....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Biomass; Reusing waste.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000200138

Agronomic and molecular characterization of wild germplasm Saccharum spontaneum for sugarcane and energycane breeding purposes
Provedor de dados: 63
Autores: Silva,Jorge Alberto Gonçalves da; Costa,Paulo Mafra de Almeida; Marconi,Thiago Gibbin; Barreto,Everton Jean da Silva; Solís-Gracia,Nora; Park,Jon-Won; Glynn,Neil Charles.
ABSTRACT: Among the species related to sugarcane, Saccharum spontaneum (L.) is a wild species with the greatest potential as a source of genetic variation to cope with biomass production in harsh environments. Due to its high yield, early vigor, ratooning ability, low input requirements and tolerance to various biotic and abiotic stresses, sugarcane breeders have shown interest in its contribution, as a donor of genes, to the development of high biomass energy canes. The conservation, evaluation and utilization of the genetic variability of S. spontaneum available in germplasm collections are critical for breeding, but, given the aggressive rhizomatous growth habit and the ability to propagate via seed dispersal, S. spontaneum is classified as a noxious...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Molecular markers; Yield; Bioenergy; Abiotic stress; Core collection.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000400329

Mechanized methods for harvesting residual biomass from Mediterranean fruit tree cultivations
Provedor de dados: 63
Autores: Velázquez-Martí,Borja; Fernández-González,Elena; Callejón-Ferre,Ángel Jesús; Estornell-Cremades,Javier.
This study evaluates the technology and work systems used in order to harvest residual biomass from pruning in the specific conditions of Mediterranean fruit orchards (narrow distances between crop-rows). Harvesting has been divided into several types of operations - pruning, biomass alignment between crop tracks, biomass concentration in piles, chipping and bundling - which have been analyzed in five Mediterranean cultivations for three years. Altogether, three types of pruning have been analyzed: Manual, previous mechanical followed by manual, and fully mechanical; Two types of alignment: Manual and mechanical; Three concentration systems: Manual, tractor with a rake and a forwarder; Four chipping work organization systems: chipper driven inside orchard...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Logistic biomass; Pruning; Bioenergy.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000300002

Air drying of macauba fruits: maintaining oil quality for biodiesel production
Provedor de dados: 1
Autores: Silva, Gutierres Nelson; Grossi, José Antônio Saraiva; Carvalho, Marcela Silva; Kuki, Kacilda Naomi; Goulart, Samuel de Melo; Pimentel, Leonardo Duarte.
Macauba fruits are oil-rich drupes with high moisture content at harvest. This feature can affect the chemical properties of the oil and increase the costs of biodiesel production. Therefore, it is necessary to adopt postharvest strategies to ensure oil quality. The aim of this work was to evaluate the effect of drying macauba fruit on the quality of the pulp oil. Husked and dehusked fruits were dried at 60°C and then stored. At 0, 15, 45, 100, and 180 days after storage, fruit samples were retrieved, and the oil from the pulp was evaluated for physicochemical parameters. The removal of the husk from the fruits considerably reduced the drying time compared to that of the husked fruits. Drying prevented deterioration of the fruit even after 180 days of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acrocomia aculeata; Post-harvest; Storage; Bioenergy; Armazenamento de Produtos Agrícolas.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43451

Experimental evaluation of substrate’s particle size of wheat and rice straw biomass on methane production yield
Provedor de dados: 111
Autores: Chandra, Ram; Takeuchi, H.; Hasegawa, T.; Vijay, V. K.
This paper examines the effect of particle sizes in substrates on methane production yields of wheat and rice straw biomass without any other applied pretreatment. Anaerobic digestion of three different mean particle size (MPS) substrate of 1.5 mm, 0.75 mm, and 0.30 mm of wheat and rice straw biomass was carried out at 37 oC mesophilic temperature. The observed result revealed that mean particle size of 0.30 mm, and 0.75 mm had increased methane production yield by 4.7%, and 38.7%, respectively, compared to 1.50 mm particle size of wheat straw. However, in case of rice straw substrates the methane production yield was found 7.9%, and 13.0% higher, respectively, for mean particle size of 0.30 mm, and 0.75 mm, compared to 1.50 mm particle size. Mean particle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Biogas production from lignocellulosic biomass wheat and rice straw; Biomass particle size; Anaerobic digestion; Methane yield.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2844

Energy Demand in Agricultural Biomass Production in Parana state, Brazil
Provedor de dados: 111
Autores: Andrea, M. C. S.; Tieppo, R. C.; Gimenez, L. M.; Povh, F. P.; Katsman, T. J.; Romanelli, T. L.
Energy flow analysis is an interesting approach to assess and to improve sustainability of agricultural production systems, represented by the economy of energy resources and other inputs translated into energy terms. This type of analysis can complement the economic view contributing to more efficient production systems. Moreover, assessing crops with traditional food use may play an important role in energy provision. Energy efficiency tools were applied in order to determine the energy demand as well as the efficiency of the biomass production of several forage crops in mechanized systems conducted at Paraná state, Brazil. Material flow, input and output energy, energy balance, energy return over investment and embodied energy were used and identified...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Energy indicators; Sustainability; Embodied energy.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2916

Energy Demand in Sugarcane Residue Collection and Transportation
Provedor de dados: 111
Autores: Tieppo, R. C.; Andrea, M. C. S.; Gimenez, L. M.; Romanelli, T. L.
Sugarcane production system is in transition, mainly due to its harvesting process. Harvest through burning has been gradually replaced by mechanized processes, providing another by-product to be explored: sugarcane trash. In Brazil, through of the sugarcane trash, São Paulo state itself produces around 210.4 million BOE – barrel of oil equivalent (1,251,952 TJ ), which could supply consumers through cogeneration or for further second generation ethanol. For the sugarcane trash to be collected, mechanized processes are required, such as windrowing, gathering, and transporting. In agricultural production systems, embodied energy is affected by the mechanization level. In order to assess environmental performance by the energy point-of-view, analysis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Material flow; Mechanized harvest; Bioenergy; Biofuel.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2913

Pressure build-up and wear analysis of tapered screw extruder biomass briquetting machines
Provedor de dados: 111
Autores: Orisaleye, Joseph Ifeolu; Ojolo, Sunday Joshua; Ajiboye, Joseph S.
The design of efficient screw extruder biomass briquetting machines is important for the utilization of loose biomass materials from wood and agricultural wastes for the production of solid fuel. In this study, the effects of geometrical parameters (channel depth and helix angle) and operational parameters (friction coefficient, mass flow rate and speed) on the performance and design of the briquetting machine were investigated using a pressure model based on the plug flow theory. An analytical model, which utilizes the pressure model, was also developed from Archard’s wear law to investigate screw wear of biomass briquetting machines. The study on the pressure model showed that a shallow screw channel and small helix angle resulted in rapid pressure...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical Engineering; Agricultural Engineering; Bioenergy; Renewable energy; Machine design Screw extruder; Biomass briquetting machine; Plug flow theory; Archard’s wear law; Pressure build-up.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4927

An on-line advisor for sizing and economic analysis of  anaerobic digestion plants
Provedor de dados: 111
Autores: Busato, Patrizia; Berruto, Remigio; Sopegno, Alessandro; Cornelissen, Renè.
A web-based service was deployed to appropriately size bio-gas plant capacity and perform its economic viability and return on investment based on biomass availability.  The tool is based on accepted biogas plant engineering design practice, incorporating the effects of incentives resulting from energy policies for member nations of the European Union participating in the Bioenergy Farm IEE and EU funded project.  The service provides a comprehensive database that allows consultants and farmers to analyze anaerobic digestion systems at different levels of granularity.  It also included multilingual support.  An adoption program was conducted to increase awareness on the availability of the service and ensure appropriate use and interpretation of its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Information Technology Biogas; Bioenergy; Feasibility; Viability; Subsidy; Web application; Free.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2714

Components of net aerial primary production in a Bambusa oldhamii plantation
Provedor de dados: 115
Autores: Castañeda-Mendoza,Arturo; Vargas-Hernández,J. Jesús; Gómez-Guerrero,Armando.
Biomass production is an important criterion to be considered for the establishment of commercial forestry plantations for bioenergy production. In this study, an estimation of net aerial primary production (NAPP) was made in a young plantation of Bambusa oldhamii Munro from the sum of biomass production from growth of new culms, biomass increment of the pre-existing culms, and production of litter. Biomass production in the incorporated culms was 15.82 Mg ha-1 year-1, of which 13.77 Mg (87 %) corresponded to stems and 2.05 Mg (13 %) to foliage. Biomass increment in the pre-existing culms was 10.88 Mg ha-1. One- and two-year-old cohort production was 7.31 and 3.57 Mg ha-1. Litter production was 5.56 Mg ha-1 year-1. Results show that NAPP was 32.20 Mg ha-1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bamboo; Litter; Biomass production; Bioenergy; Tropical forest species.
Ano: 2012
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000100006

Modeling residual biomass from mechanized wood harvesting with data measured by forest harvester
Provedor de dados: 42
Autores: RODRIGUES,CARLA K.; LOPES,EDUARDO S.; FIGUEIREDO FILHO,AFONSO; PELISSARI,ALLAN L.; SILVA,MATHEUS K.C.
Abstract: The lack of accurate models for estimating residual biomass in wood harvesting operations results in underutilization of this co-product by forestry companies. Due to the lack of this information, forestry operations planning, such as chipping and transport logistics, are influenced, with a consequent increase in costs. Thereby, the aim of this study was to propose and evaluate statistical models to estimate residual biomass of Eucalyptus sp. in wood harvesting operations by means of tree variables measured from harvester processing head. Generalized linear models were composed through stepwise procedure for estimating residual biomass by tree covariates: diameter at breast height, commercial height, commercial limit diameter, and stem commercial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Full-tree harvesting method; Forest measurement; Forest planning.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700867

Fiber composition of a diversity panel of the world collection of sugarcane (Saccharum spp.) and related grasses
Provedor de dados: 53
Autores: Todd,James Ryan; Sandhu,Hardey; Binder,Joe; Arundale,Rebecca; Gordon,Vanessa; Song,Jian; Glaz,Barry; Wang,Jianping.
ABSTRACT The world collection of sugarcane (Saccharum hybrids. and related grasses (WCSRG) is an important source of genes for sugarcane and energycane breeding. The core collection or diversity panel of the WCSRG was created in Canal Point with 300 accession and 10 checks to evaluate its diversity. The fiber components of the species and accessions within the WCSRG are unknown, so a shredded and dried fiber sample was taken from each accession and sent for fiber analysis. The acetyl groups, acid insoluble lignin, acid soluble lignin, arabinan, glucan, holocellulose, total lignin, structural ash, and xylan were quantified on a % fiber basis and nonstructural ash on a % total basis. There were significant, but not large differences between species for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofuel; Bioenergy; Miscanthus; Erianthus; Biomass.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100048

Soil chemical attributes and energetic potential of agricultural residual biomasses provided by 23-year soil management
Provedor de dados: 53
Autores: Pierri,Letícia de; Pauletti,Volnei; Barth,Gabriel; Motta,Antônio Carlos Vargas; Silva,Dimas Agostinho da; Roza,Luciano Antunes da; Saudade,Cesar Augusto Schmid.
ABSTRACT Residual biomass from grains has potential as an energetic source. Biomass composition determines this potential and is related to plant nutrition, which may vary according to soil fertility. The aim of this 23-year field study was to evaluate changes in chemical attributes of a Brazilian Oxisol and in the energetic potential of oat (Avena sativa L.) and soybean (Glycine max (L.) Merr) residual biomasses provided by tillage systems and fertilizer rates. The trial was performed since 1989, assessing soil chemical attributes in no-tillage (NT), conventional (CT), minimum (MT) and no-tillage plus chisel plough (NT+CP), with two fertilizer rates (normal and reduced, since 1994). Oat and soybean (2012/2013) residual biomasses were collected and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; No-tillage; Fertilization; Avena sativa L.; Glycine max (L.) Merr.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300454

Bioenergetics Potential of RR2 PRO Transgenic Soybean Subjected to Application of Herbicides Isolated and in Combination
Provedor de dados: 52
Autores: Moreno,Giovane; Santos,Viviane Taisa; Albrecht,Leandro Paiola; Cesco,Victor Salomão.
ABSTRACT In Brazil, there are several crops producing oil for biofuel production, such as canola, sunflower, peanut, cotton, castor bean, soybean, among others. There are parameters that indicate the energetic and economic viability for the production of biofuels, and that can be applied, for example, in transgenic soybeans. The present study aimed to evaluate the energetic viability of Intacta RR2 PROTM soybean for biofuel production.Experiments were conducted in the municipalities of Palotina and Marechal Cândido Rondon, both in the State of Paraná. Energy balance calculations were carried out from the production system, estimating energy expenditure, including the agricultural and industrial stages. The inputs used were considered as input of energy,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Bioenergy; Biotechnology; Energy generation; Socioeconomic evaluation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200229

Estimating the bioenergy potential of Pinus radiata plantations in Chile
Provedor de dados: 118
Autores: Acuña,Eduardo; Espinosa,Miguel; Cancino,Jorge; Rubilar,Rafael; Muñoz,Fernando.
The bioenergy potential for electricity and ethanol production of Pinus radiata D. Don plantations in Chile was modeled, on a regional basis, using radiata pine plantations areas by age class. Wood basic density equations based on age and growing region, wood moisture content variability, and the effciency of a hypothetical power plant were used to estimate the amount of electricity produced by biomass at harvesting age including logging residues. Bioethanol yield was estimated at 275 L t-1 of dry biomass. The uncertainty of the bioenergy production were analyzed using probabilistic distribution functions and an estimate of 1.83 million ha-1 of radiata pine plantations by year 2030. Parameters considered for the uncertainty analyses included the rotation...
Tipo: Journal article
Palavras-chave: Bioenergy; Bioethanol; Biomass; Radiata pine; Logging residues; Monte Carlo simulation.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100009

Bioenergy production capacity in the province of Santa Fe, Argentina
Provedor de dados: 118
Autores: Montico,Sergio.
Bioenergy is a renewable source of primary energy and its sustainable use is an advantage to the current global energy crisis. The use of vegetable resources for energy purposes requires specific studies of the impacts that might occur to the economy and the environment. The province of Santa Fe (Argentina) has an agroproductive structure capable of providing biomass for its processing and production of energy. The objective of this work was to value the capacity of this province for bioenergy production from grains transformation into biofuels and the biomass energy from crop straw, and speculates on the impact on soils from removed crop residues. Crop residues of the ten most important grain and oilseed crops (15.2x10(6) Mg year-1) and bioethanol and...
Tipo: Journal article
Palavras-chave: Biofuels; Bioenergy; Crops residues; Sustainability.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000300013

Deterioration and fermentability of energy cane juice
Provedor de dados: 65
Autores: Ceccato-Antonini,Sandra Regina; Bassi,Ana Paula Guarnieri; Paraluppi,Anna Livia; Santos,Eder Gustavo Dias dos; Matsuoka,Sizuo.
ABSTRACT: The main interest in the energy cane is the bioenergy production from the bagasse. The juice obtained after the cane milling may constitute a feedstock for the first-generation ethanol units; however, little attention has been dedicated to this issue. In order to verify the feasibility of the energy cane juice as substrate for ethanol production, the objectives of this research were first to determine the microbiological characteristics and deterioration along the time of the juices from two clones of energy cane (Type I) and second, their fermentability as feedstock for utilization in ethanol distilleries. There was a clear differentiation in the bacterial and yeast development of the sugarcane juices assayed, being much faster in the energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Biomass; Renewable energy; Ethanol 1G.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900751

Preemergence herbicides on weed control in elephant grass pasture
Provedor de dados: 64
Autores: Brighenti,Alexandre Magno; Calsavara,Leonardo Henrique Ferreira; Varotto,Yago Vieira Guerra.
ABSTRACT Elephant grass (Pennisetum purpureum Schum.) is an important forage crop that has been proposed as a potential feedstock for bioenergy production. However, weed interference is a major factor limiting elephant grass production. Field experiments were conducted in 2014 and 2015 to evaluate preemergence herbicides for selective weed control in an elephant grass pasture. Herbicide treatments included atrazine + S-metolachlor, atrazine + simazine, ametryn, ethoxysulfuron, S-metolachlor, diuron + hexazinone, sulfentrazone, imazethapyr, and atrazine at label use rates. Weedy and weed-free treatments were included. Atrazine + S-metolachlor, atrazine + simazine, ametryn, ethoxysulfuron, S-metolachlor, sulfentrazone, and atrazine did not cause...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioenergy; Biofuel; Napier grass; Forage; Pennisetum purpureum.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000100052