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Encontrado(s) 7 Trabalho(s) Técnico(s) no assunto BIOMASSA

Clique para acessarBIOMASS LOOKING FOR EFFICIENT UTILIZATION THE REHEAT CONCEPT

Idioma: Portugus
Assunto: Biomassa
Resumo: Through the Kyoto protocol and its country-specific targets, power producers are strongly driven towards CO2-reducing solutions such as biomass energy production. Germany encourages this through new energy legislation, EEG (Renewable Energy Law), which gives higher subsidies for high-efficiency, CO2-reducing power generation. This has led to increased investment in biomass plants. The impact of the high efficiency requirements has enabled new technology to enter this market segment. Before the new energy legislation was implemented, only wood shavings/straw etc. was economical for use in biomass energy production; today the more expensive fresh wood is used as well. A typical boiler fired with fresh wood generates high steam parameters, mainly high temperatures (480-540C ) where reheat solutions are used to further increase the efficiency of the power plant. The reheat concept is based on live steam run through a high-pressure (HP) turbine. Before entering the low pressure (LP) turbine, the steam is returned to the steam generator to increase its temperature to the live steam parameters (pressure remains as is). Because of the high temperatures necessary for this process, Siemens PG has developed a standard dual-casing reheat concept to fit this new market requirement. The advantage to the power producer is that plant efficiency can thus be increased by as much as five per cent. At the Bischofferode plant in Thringen (Germany), Stadtwerke Leipzig uses this concept for a new 20MW greenfield power plant together with a fluidized bed boiler using fresh wood fuel. The high live steam parameters of 128bara/532degC and the reheat parameters enable an efficiency otherwise unattainable. The solution also maximizes the subsidies set by German legislation Siemens continues to develop solutions for this market segment. This paper will present the new technical requirements as well as their solution and our experience.

Clique para acessarExperincias de gerao de energia eltrica a partir de biomassa no Brasil: Aspectos tcnicos e econmicos.

Idioma: Portugus
Assunto: Biomassa

Clique para acessarLiquefao de resduos de biomassa e carvo em presena de hidrognio para produo de biocombustveis lquidos

Idioma: Portugus
Assunto: Biomassa
Resumo: Os biocombustveis so importantes na estratgia energtica da Unio Europeia, pois so uma alternativa renovvel aos combustveis fsseis no setor dos transportes da UE, contribuindo para a reduo das emisses de gases com efeito de estufa e melhorando a segurana de abastecimento dos pases europeus. O principal objetivo deste trabalho estudar o efeito da variao das condies experimentais na coliquefao de carvo com resduos de biomassa/plstico de modo a otimizar a formao de um biocombustvel lquido.

Clique para acessarModelos de bioconverso anaerbia de resduos slidos urbanos inoculados com lodo de esgoto sanitrio

Idioma: Portugus
Assunto: Biomassa

Clique para acessarTratamento anaerobio de residuos solidos urbanos e lodos de tanques spticos utilizando reator em fase semi-solida seguido de reator anaerobio fluxo ascendente com manta de lodo

Idioma: Portugus
Assunto: Biomassa

Clique para acessarTratamento anaerbio de resduos slidos urbanos mais lodo de esgoto sanitrio

Idioma: Portugus
Assunto: Biomassa

Clique para acessarVermicompostagem do lodo de lagoas de tratamento de efluentes industriais consorciada com composto de lixo urbano

Idioma: Portugus
Assunto: Biomassa