Cogeneration Systems
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Development of ammonia-water absorption refrigeration systems simulator and its application in a project of a system moved by exhaust gases of diesel engine / Aperfeiçoamento de um simulador de sistemas de refrigeração de absorção agua-amonia e sua aplicação para projeto de um sistema movido a gas de escape de motor diesel
This work shows the development of an ammonia-water absorption refrigeration system pre-existing simulation program, which uses diesel engine exhaust gases from a diesel-generator group as energy source. The project was implemented in four stages. An initial design of its components involved solely thermodynamic relations, and was based on the arbitration of
Publicado em: 2008
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14. Analise termodinamica de um sistema de cogeração com gaseificação de licor negro / Termodynamic analysis of a cogeneration system with blak liquor gasification
The pulp and paper industries generate most part of energy for self consumption burning two different fuels: biomass and black liquor, which is more used than the first one. This industrial sector has been used cogeneration systems, to produce electric energy from the combustion of these fuels. In the last years an increase in the production of the industrie
Publicado em: 2007
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15. Exergy analysis of thermal systems in a pulp and paper production process. / Análise exergética dos sistemas térmicos em um processo de produção de celulose e papel.
This work presents a comparative evaluation from thermodynamic performance view of thermal systems in a Kraft pulp and paper mill. The design information and the data of the industrial operation were collected for the current utility system and for the new system that has been buit. The exergy analysis is applied as the quantitative and qualitative evaluatio
Publicado em: 2007
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16. Cogeração usando gases de escapamento de motores diesel sobrealimentados, potencialidades, impactados / Cogeneration by using discharge gases in diesel engines turbocharged, potentialities and impacts
Cogeneration is a broadly used tool to improve the performance of thermal systems by using combined cycles. In this sense, it is aimed to identify the amount of spare energy found in the turbine used to perform extra power in engines equipped either with waste-gate or twin flow. In this way, refrigerating power is used motor vehicle applications. For this pu
Publicado em: 2006
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17. CogeraÃÃo usando gases de escapamento de motores diesel sobrealimentados, potencialidades, impactados / Cogeneration by using discharge gases in diesel engines turbocharged, potentialities and impacts
Cogeneration is a broadly used tool to improve the performance of thermal systems by using combined cycles. In this sense, it is aimed to identify the amount of spare energy found in the turbine used to perform extra power in engines equipped either with waste-gate or twin flow. In this way, refrigerating power is used motor vehicle applications. For this pu
Publicado em: 2006
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18. GENERATION OF THERMAL AND ELECTRIC LOAD PROFILES FOR THE OPTIMIZATION OF A COGENERATION SYSTEM / GERAÇÃO DE PERFIS ELÉTRICO E TÉRMICO PARA OTIMIZAÇÃO DE UM SISTEMA DE COGERAÇÃO
The cogeneration will be an always present concept in the forms of energy conversion in the future, since it proposes to optimize the use of the energy resources. The system specification goes primarily through a technical economic analysis, where all the investments and operational costs are quantified for minimizing the cost of the produced energy. In the
Publicado em: 2005
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19. Avaliação de arranjos cogeradores em siderurgicas brasileiras com auxilio de simulação computacional
This work deals with technical and economical assessment of cogeneration schemes ir Brazilian steel industries based on cogeneration plants previously installed in Brazil and abroad In particular, cogeneration schemes that can cover 100 per cent of eletric demand and eventuall) produce surplus eletricity, are considered. Computational simulation is used as a
Publicado em: 2001
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20. Desenvolvimento e instalação de um cogerador compacto no campus da Universidade Federal do Acre
The use of Diesel engines to generate electricity is an ordinary practice in Brazil, mainly for emergency services in hospitals, industries, shopping centers, telephone centrals, universities, and supermarkets. Besides the emergency uses, there are a large number of thermoelectric systems spread in the country to supply isolated communities. In the North and
Publicado em: 2001
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21. Avaliação termoeconomica do sistema de cogeração da usina vale do rosário
In the present work, a cogeneration system of a sugar-alcohol cane mill isevaluated. Using the Exergetic Cost Theory, a thermoeconomic analysis is made for three crops, corresponding to the years of 1996, 1997 and 1998. Previusly, na energetic and exergetic analysis was made, determining the first and second law equipment s efficiencies and also some perform
Publicado em: 1999
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22. Possibilidade de conservação de energia e estudos de caso de cogeração no Hospital de Clinicas da UNICAMP
Searching for more efficient uses of energy natural resources, new technologies have been devised and old ones developed. Within the latter group the co-generation of energy is outstanding. It shows to be feasible for several applications in the industrial as well as in the tertiary sectors. This work deals with the application of co-generation systems in a
Publicado em: 1997
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23. Cogeração disseminada para pequenos usuarios : estudo de casos para o setor terciario
ln this paper some cogeneration systems using small internal combustion engines and gas turbines in compact versions are analyzed, applied in some segments of the terciary sectors that show themselves as feasible alternatives for rational descentralized energy production. lnitially the relative concepts and ordinary technologies of cogeneration systems are p
Publicado em: 1994
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24. Avaliação da Cogeração de Eletricidade a partir de Bagaço de Cana em Sistemas de Gaseificador a Gás / Assessment of cogeneration of electricity from bagasse in systems of biomass gasification / gas turbine
Antes do início do Proálcool em 1975, o primeiro programa no mundo a usar em grande escala a biomassa como combustível de veículos, as indústrias já usavam o bagaço de cana - subproduto da fabricação de açúcar e álcool - para produzir energia para uso próprio. Atualmente, além da energia térmica/elétrica para auto-suficiência da usina, é ge
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/12/1992