Biogas Use
Mostrando 25-36 de 51 artigos, teses e dissertações.
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25. Produção de biogás a partir de glicerol oriundo de biodiesel / Biogas production from glycerol generated on biodiesel industry
The Brazilian legislation demands the use of biodiesel mixed with diesel in an increasing rate. This raise on biodiesel production implies also on an increase on generation of glycerol, which is a liquid or semi-solid waste with high concentration of salts (approximately 46.1 g\ CL POT.-\ /L) and organic matter (1260 gCOD/L in average). Despite being widely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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26. Estudos em adsorÃÃo de gÃs natural: armazenamento, transporte e purificaÃÃo / Studies of Natural Gas Adsorption: Storage, Transport and Purification
The use of vessels filled with activated carbon to store and transport natural gas (NG) at moderate pressures (about 3.5 MPa) and ambient temperature (about 298 K) has been studied as a potential alternative to compressed natural gas storage at high pressures (ca. 20 MPa). The present study provides an experimental investigation of charge and discharge cycle
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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27. Ganhos ambientais e energéticos com a utilização da biomassa residual de gado leiteiro em Lagoa da Prata- MG / Profit environmental and energy use of biomass with residual of dairy cattle in the Lagoa da Prata-MG
O objetivo deste trabalho foi investigar os ganhos ambientais e energéticos com o aproveitamento da biomassa residual de gado leiteiro no município de Lagoa da Prata-MG. Para este estudo realizaram-se trabalhos de campo, tanto para caracterizar a pecuária leiteira no município, como para conhecer os aspectos ambientais da localidade. Para se conseguirem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/10/2010
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28. Modelagem Matemática da produção e transporte de biogás em aterros sanitários / Mathematical modeling of production and transportation of biogas in landfills
The processes that occur within the landfill for the production of methane are the methane generation through biodegradation, transport of methane through a porous medium and sorption of methane through reactions with other compounds present in the landfill, especially oxidation. This work aims to develop a computer model to estimate the biogas production ra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/03/2010
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29. Avaliação técnica e econômica para aproveitamento da biomassa caprina em biodigestores no Semi-Árido Baiano.
The exhaustion of some fossil energy sources, caused by the increasing demand in the last years, as well as the worldwide consciousness about the environment issues, has brought a continuous quest for new sustainable means of production. In this new context, the biogas technology represents a real possibility of generating clean energy and, at the same time,
Publicado em: 2010
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30. BIODIGESTORES E BIOGÁS: BALANÇO ENERGÉTICO, POSSIBILIDADES DE UTILIZAÇÃO E MITIGAÇÃO DO EFEITO ESTUFA / BIODIGESTORS AND BIOGAS: ENERGETIC BALANCE, POSSIBILITING THE USE AND MITIGATION OF THE GREENHOUSE EFFECT
Biogas is a gaseous composition formed mainly by the methane gas (CH4) and by the carbon dioxide (CO2), generated especially by microbiologic processes in environment with few or no oxygen. This research was carried out on the biogas produced from the treatment of swine dejections in breathing decomposition and accumulated in the interior of biodigestors, in
Publicado em: 2010
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31. THE USE OF BIO-DIGESTERS IN SMALL AND MEDIUM RURAL PROPERTIES WITH EMPHASIS ON VALUE ADDING: A CASE STUDY FROM NORTHWESTERN REGION OF RIO GRANDE DO SUL STATE / O USO DE BIODIGESTORES EM PEQUENAS E MÉDIAS PROPRIEDADES RURAIS COM ÊNFASE NA AGREGAÇÃO DE VALOR: UM ESTUDO DE CASO DA REGIÃO NOROESTE DO RIO GRANDE DO SUL
From the duration of the Kyoto Protocol, there has been a renewed interest in technology of bio-digesters. As they allow a reduction in the emission of greenhouse gases compared to other waste treatment methods, their deployment can permit the marketing of carbon credits, resulting in money. The present study aims to analyze the process of dissemination of t
Publicado em: 2010
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32. ANÁLISE ECONÔMICA E BALANÇO ENERGÉTICO DO BIOGÁS EM GRANJAS DE SUÍNOS / ECONOMIC ANALYSIS AND ENERGY BALANCE OF PLANTS IN FARMS DE PIGS
This work presents a case analysis of energetic harnessing in a piggery, based on the use of biogas generated from pig sewage. The analysis shows that the energy from the biogas produced in the farm processes can be partially used through Clean Development Mechanisms (CDM) in order to improve the system efficiency. The utilized process presents environmental
Publicado em: 2009
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33. Viabilidade do aproveitamento do lixo urbano da cidade de Maceió como alternativa energética. / Viability of the exploitation of the urban garbage of the energy city of Maceió as alternative
Due to the consolidation of the capitalist model, technological progress and consequently the excessive consumption of disposable products, has become the great volume of solid waste generated by society, thus creating serious environmental and public health. Beside this problem, the sharp rise in the price of fossil fuels and the possibility of depletion ma
Publicado em: 2009
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34. Reasons for the non-use of the biodigestors in swine farms in Marechal Candido Rondon, PR / RazÃes pela nÃo utilizaÃÃo de biodigestores em granjas suinÃcolas em Marechal CÃndido Rondon â PR
The actual economic model takes the society to exploit the natural resources in an inadequate way, besides generating anthrop systems which are not always in concordance with nature. The swine culture is one of these systems, which needs some policies and actions in order to give the activity some sustainability. This research aimed at identifying the reason
Publicado em: 2009
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35. Avaliação de diferentes inóculos na digestão anaeróbia da fração orgânica de resíduos sólidos domésticos
The process of anaerobic digestion of organic solid wastes can be optimized and accelerated by using methods that contribute to achieve a rapid and balanced start-up, such as the use of appropriate inocula. In this context, the present study aimed to analyze the potential application of bovine manure, pig manure and bovine rumen as inocula for the anaerobic
Publicado em: 2009
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36. Supervision and management almost great hybrid power systems based on differential evolution for the region of the Pantanal / Supervisão e gerenciamento quase ótimo de sistemas híbridos de energia baseado em evolução diferencial para a região do Pantanal
A design of two supervison and management system for hybrid energy systems is proposed in this work, one based on the operator experience, and another using an algorithm of global search called Differential Evolution. The application of these systems is for remote areas in general, but in this work is given focus to isolated areas in the Pantanal region of M
Publicado em: 2009