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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Otimiza??o do sistema de supervis?o e controle de uma planta de tratamento de res?duos utilizando plasma

Amado, Jos? Alberto Diaz 20 December 2013 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-20T20:57:18Z No. of bitstreams: 1 JoseAlbertoDiazAmado_TESE.pdf: 8665356 bytes, checksum: a79986163a4eacb1bc8761179ed2393a (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-21T19:37:53Z (GMT) No. of bitstreams: 1 JoseAlbertoDiazAmado_TESE.pdf: 8665356 bytes, checksum: a79986163a4eacb1bc8761179ed2393a (MD5) / Made available in DSpace on 2016-01-21T19:37:53Z (GMT). No. of bitstreams: 1 JoseAlbertoDiazAmado_TESE.pdf: 8665356 bytes, checksum: a79986163a4eacb1bc8761179ed2393a (MD5) Previous issue date: 2013-12-20 / Um dos grandes e crescentes problemas enfrentados pela sociedade moderna ? a alta produ??o de res?duos e os efeitos correlatos que eles produzem, tais como a degrada??o do meio ambiente e a polui??o dos diversos ecossistemas, com reflexos diretos na qualidade de vida da popula??o. As tecnologias de tratamento t?rmico t?m sido largamente empregadas no tratamento destes res?duos e o plasma t?rmico vem ganhando import?ncia no seu processamento de inertiza??o O objetivo deste trabalho est? focado no desenvolvimento de um sistema otimizado de supervis?o e controle aplicado a uma planta de processamento de res?duos e efluentes petroqu?micos utilizando plasma t?rmico. O sistema ? basicamente composto por uma tocha indutiva plasm?tica, reatores, sistema de lavagem/exaust?o de gases e uma fonte de RF utilizada na gera??o de plasma. O processo de supervis?o e controle da planta ? de suma import?ncia no desenvolvimento do objetivo final. Por este motivo, foram criadas diferentes subs?dios na procura de uma efici?ncia maior no processo, com gera??o de eventos, gr?ficos/distribui??o e armazenamento de dados para cada subsistema da planta, processos de execu??o, controle e visualiza??o 3D de cada subsistema da planta, entre outros. Foi criada uma plataforma de comunica??o entre a arquitetura virtual da planta 3D e uma estrutura de controle real (hardware). O objetivo ? utilizar os conceitos de realidade mista e desenvolver estrat?gias de diferentes tipos de controle que permitam manipular a planta 3D sem restri??es e hor?rios, al?m de otimizar o processo real. Os estudos mostraram que uma das melhores formas de implementar o controle de gera??o de plasma indutivo ? utilizar t?cnicas de controle inteligente, seja pela sua efici- ?ncia nos resultados seja pela sua acess?vel implementa??o, sem precisar de uma modelo especifico. A estrat?gia de controle utilizando l?gica Fuzzy (PI-Fuzzy) foi desenvolvida e implementada, e os resultados mostraram condi??es satisfat?rias em tempo de resposta e viabilidade. / A major and growing problems faced by modern society is the high production of waste and related effects they produce, such as environmental degradation and pollution of various ecosystems, with direct effects on quality of life. The thermal treatment technologies have been widely used in the treatment of these wastes and thermal plasma is gaining importance in processing blanketing. This work is focused on developing an optimized system of supervision and control applied to a processing plant and petrochemical waste effluents using thermal plasma. The system is basically composed of a inductive plasma torch reactors washing system / exhaust gases and RF power used to generate plasma. The process of supervision and control of the plant is of paramount importance in the development of the ultimate goal. For this reason, various subsidies were created in the search for greater efficiency in the process, generating events, graphics / distribution and storage of data for each subsystem of the plant, process execution, control and 3D visualization of each subsystem of the plant between others. A communication platform between the virtual 3D plant architecture and a real control structure (hardware) was created. The goal is to use the concepts of mixed reality and develop strategies for different types of controls that allow manipulating 3D plant without restrictions and schedules, optimize the actual process. Studies have shown that one of the best ways to implement the control of generation inductively coupled plasma techniques is to use intelligent control, both for their efficiency in the results is low for its implementation, without requiring a specific model. The control strategy using Fuzzy Logic (Fuzzy-PI) was developed and implemented, and the results showed satisfactory condition on response time and viability

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