Gas Turbines
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. Estudo do envelhecimento e do tratamento térmico de rejuvenescimento da superliga GTD111
RESUMO A superliga de níquel GTD111 é comumente utilizada na fabricação de pás de turbinas a gás, destinadas a geração de energia e aplicações aeronáuticas. O presente estudo investiga o comportamento desta superliga “como fornecida” pelo fabricante e previamente tratada termicamente à fim de diminuir o tamanho de γ’ e transformá-lo de mo
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Combined Cycle Performance Evaluation and Dynamic Response Simulation
ABSTRACT Power plants operating in combined cycle present higher thermal efficiency (over 60%) and increased power generation when compared to traditional simple cycles, such as gas or steam turbines operating alone. Considering that the power plant evaluated in this paper is already operational, a further development concerning to the power plant control sy
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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3. Gas Turbine Course's Teaching Process at Instituto Tecnológico de Aeronáutica: Theory and Laboratory
ABSTRACT: The Instituto Tecnológico de Aeronáutica (ITA) is an Engineering school maintained by the Air Force Command, Ministry of Defense. The aim of the Turbomachines Department at ITA is the human resources training for design and development of aeronautical and industrial gas turbines, necessary for the Gas Turbine Program of the Departamento de Ciênc
J. Aerosp. Technol. Manag.. Publicado em: 2015-03
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4. Multistage axial-flow turbines : design and performance analysis
Plans for developing turbines in Brazil were present on the conception of CTA six decades ago. In this manner highly specialized work teams is needed to carry out such activity. The Center for Reference on Gas Turbine group has been contributing to research activities at CTA taking account of the study of gas turbines both aeronautical and industrial. In ord
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2012
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5. Análise termodinâmica de ciclo combinado operando fora das condições de projeto / Thermodynamic evaluation of a combined cycle operating under off-design conditions
O atendimento da demanda crescente de eletricidade, associado à necessidade do cumprimento de metas de emissões de gases causadores do aquecimento global, será um grande desafio ao setor elétrico nas próximas décadas. A geração de eletricidade ainda necessitará de combustíveis fosseis por muitos anos e a busca por eficiência energética nos proces
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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6. A swirler stabilized combustion chamber for a micro-gas turbine fuelled with natural gas
Micro-gas turbines are a good alternative for on-site power generation, since their operation is very reliable. The possibility of operating with various fuels increases versatility and, as a result, the usage of these devices. Focusing on a performance improvement of a tri-fuel low-cost micro-gas turbine, this work presents investigations of the inner flow
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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7. Analysis of Gas Turbine Performance with Inlet Air Cooling Techniques Applied to Brazilian Sites
Abstract: For geographic regions where significant power demand and highest electricity prices occur during the warm months, a gas turbine inlet air cooling technique is a useful option for increasing output. Inlet air cooling increases the power output by taking advantage of the gas turbine's feature of higher mass flow rate, due the compressor inlet temper
J. Aerosp. Technol. Manag.. Publicado em: 2012-09
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8. Greenhouse tomato production with electricity generation by roof-mounted flexible solar panels
The integration of renewable energy sources into greenhouse crop production in southeastern Spain could provide extra income for growers. Wind energy could be captured by small to medium-sized wind turbines, gas could be produced from biomass, and solar energy could be gathered by solar panels. The aim of this study was to examine the effect of flexible sola
Scientia Agricola. Publicado em: 2012
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9. Avaliação da viabilidade de implementação de ciclo combinado em uma usina termelétrica / Evaluation Viability of combined cycle implementation in a thermo power plant
Grande parte das termelétricas brasileiras a gás natural construídas recentemente foi projetada para operar em ciclo combinado. No entanto, em uma primeira etapa, estas termelé-tricas são colocadas em operação em ciclo aberto. Dos vários tipos de ciclo combinados, o ciclo combinado Brayton/Rankine é o mais desenvolvido e amplamente utilizado. O trab
Publicado em: 2011
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10. Análise do comportamento de uma turbina a gás operando com combustão enriquecida com oxigênio / Analysis of the behavior of a gas turbine working with oxygen-enhanced combustion
O presente trabalho tem por objetivo a análise do comportamento de uma turbina a gás utili-zando combustão enriquecida com oxigênio (em inglês OEC – Oxygen-Enhanced Combusti-on) até a proporção de 30% de oxigênio no oxidante. A metodologia utilizada é uma modela-gem numérica da turbina, considerando o processo de combustão e consequente altera�
Publicado em: 2011
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11. Preliminary design methodology for multi fuel gas turbine combustors.
The combustors for gas turbines have been traditionally designed through trial and error, which is a time consuming and expensive process. With the development of computers and new simulation techniques the design process has been improved considerably. However, the design of combustors for gas turbines still remains an iterative process, which requires a br
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2010
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12. Evaluation of 5-axis HSC dynamic behavior when milling TiAl6V4 blades
Gas combustion represents the second principal way of electricity generation due to its disposal, and smaller dimension and pollution capacity when compared with diesel engines. The conversion of natural gas in electricity is made through gas turbines, and the rotors of its compressors are components that present significant difficulty in its manufacture. Th
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-09