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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

Uma metodologia para redu??o de incertezas em sistema de medi??o de vaz?o de ?leo e g?s

Ara?jo, Jo?o de Deus Freire de 20 March 2009 (has links)
Made available in DSpace on 2014-12-17T14:55:41Z (GMT). No. of bitstreams: 1 AraujoJDF_DISSERT.pdf: 2882504 bytes, checksum: 96c2fbb3f2a5321e6d6c3d365cb77eff (MD5) Previous issue date: 2009-03-20 / The objective of this research is to discuss about the need for implementation of new alternatives for the implementation on the metrological control: on the findings of initial and subsequent measurements, the control procedures of measurement uncertainty applied in assessing the loss or remains found in handling operations of bulk liquids, when used turbine meters used in measuring the tax on the business of Petrobras, due to the current environment of legal metrology and scientific, both domestic and international. We aim, with these alternatives: standardizing the minimization of random and systematic errors, the estimate of the remaining errors, as well as the management control of metrological calibration procedures, control of measurement uncertainty, and contribute to the change in the form of performance of legal metrology and scientific disseminating new information to change management of metrological control, objectively focused on aspects of supervision in implementing these activities in the control of the uncertainties of measurement used in our processes in the fiscal measurement system Petrobras. Results are presented, information and comments on the influence of measurement uncertainty in the current results of the fiscal and transfer of custody. This will emphasize the need, among other things, improvement and expansion of metrological control monitored by setting a better meet demand, calibration equipment and measuring instruments for Petrobras. Finally, we intend to establish the need for improving the method of evaluation of the data meter applied to the current management control of measurement uncertainty by proposing a methodology for addressing the problem, as well as highlighting the expected results. / O objetivo deste trabalho de pesquisa ? abordar a necessidade de implementa??o de novas alternativas para a execu??o da gest?o no controle metrol?gico: quanto ?s verifica??es das medi??es iniciais e posteriores; nos procedimentos de controle da incerteza de medi??o; aplicada na avalia??o das perdas ou sobras constatadas nas opera??es de movimenta??o de gran?is l?quidos; quando utilizamos medidores tipo turbina na medi??o fiscal utilizada nos neg?cios da Petrobras, em virtude ao atual cen?rio da metrologia legal e cient?fica; no contexto nacional e internacional. Almeja-se, com estas alternativas: padronizarmos a minimiza??o dos erros aleat?rios e sistem?ticos; a estimativa dos erros remanescentes; assim como, a gest?o no controle metrol?gico dos procedimentos de calibra??o; controle das incertezas de medi??es; e contribuirmos para a mudan?a na forma de atua??o da metrologia legal e cient?fica, divulgando novas informa??es para a gest?o de mudan?as do controle metrol?gico, voltadas objetivamente para os aspectos de supervis?o na execu??o destas atividades no controle das incertezas de medi??o utilizadas em nossos processos de medi??o fiscal no sistema Petrobras. S?o apresentados resultados, informa??es e coment?rios sobre a influ?ncia da incerteza de medi??o nos resultados atuais das medi??es fiscais e transfer?ncias de cust?dia. Isto enfatizar? a necessidade, dentre outras coisas, de melhoria e na amplia??o do controle metrol?gico monitorado, definindo um melhor atendimento ? demanda de calibra??es dos equipamentos e instrumentos de medi??es da Petrobras. Finalmente, pretende-se concluir pela necessidade do aprimoramento do m?todo de avalia??o dos dados do medidor aplicado na gest?o atual do controle de incertezas de medi??es, propondo metodologia para a abordagem do problema, assim como, destacando os resultados esperados.

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