• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 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

Desenvolvimento de sistema de supervis?o para um duto de testes de PIGs

Freitas, Victor Carvalho Galv?o de 30 September 2016 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-02T14:03:32Z No. of bitstreams: 1 VictorCarvalhoGalvaoDeFreitas_DISSERT.pdf: 9256729 bytes, checksum: 2b7fb909aa180b8bef8f5de69a706540 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-08T20:20:54Z (GMT) No. of bitstreams: 1 VictorCarvalhoGalvaoDeFreitas_DISSERT.pdf: 9256729 bytes, checksum: 2b7fb909aa180b8bef8f5de69a706540 (MD5) / Made available in DSpace on 2017-02-08T20:20:54Z (GMT). No. of bitstreams: 1 VictorCarvalhoGalvaoDeFreitas_DISSERT.pdf: 9256729 bytes, checksum: 2b7fb909aa180b8bef8f5de69a706540 (MD5) Previous issue date: 2016-09-30 / Diversas ferramentas de manuten??o t?m sido empregadas para garantir o correto funcionamento da malha dutovi?ria de transporte de petr?leo, g?s natural e derivados, devido ao importante papel que ela desempenha na cadeia de abastecimento e distribui??o da ind?stria de energia. Entre essas ferramentas, podemos destacar o uso de PIGs (Pipeline Inspection Gauge): dispositivos que viajam no interior dos dutos e s?o capazes de realizar desde uma simples limpeza at? uma inspe??o detalhada de integridade da tubula??o. Neste trabalho, desenvolvemos um sistema de medi??o e supervis?o para um duto de testes cujo principal objetivo ? pesquisar t?cnicas de controle de velocidade para PIGs. Usamos transdutores de press?o ao longo do duto a fim de determinar a posi??o e a velocidade m?dia do PIG. O sistema de supervis?o foi implementado no Elipse SCADA, respons?vel pela visualiza??o e registro de vari?veis do sistema. A interface entre esse sistema e os transdutores foi realizada por meio de um CLP. Os resultados obtidos demonstram que o deslocamento do PIG afeta significativamente o comportamento da press?o no duto e, assim, podem ser usados para estimar a posi??o e a velocidade m?dia do dispositivo por meio dos sensores utilizados. / Several maintenance tools have been employed to ensure the correct operation of the pipeline network to transport oil and gas, due to the important role it plays in the chain of supply and distribution of the energy industry. Among these tools, we can highlight the use of PIG (Pipeline Inspection Gauge) ? a device that travels inside the pipeline and is capable of performing from a simple cleaning to a detailed inspection of pipe integrity. In this work, we developed a measurement and monitoring system for a test pipeline whose main objective is to research PIG speed control techniques. We use pressure transducers along the pipeline in order to determine the position and the average speed of PIG. The supervisory system was implemented in Elipse SCADA, responsible for viewing and recording system variables. The interface between this system and the transducers was done using a Programmable Logic Controller. The results show that displacement of the PIG significantly affects the behavior of the pressure in the pipeline and thus can be used to estimate the position and the average speed of the device by means of the sensors used.

Page generated in 0.0575 seconds