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Master's Dissertation
DOI
10.11606/D.18.2016.tde-16022016-120602
Document
Author
Full name
Karina Zoboli Buttarello
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2003
Supervisor
Committee
Seleghim Junior, Paulo (President)
Bannwart, Antonio Carlos
Fontes, Sergio Rodrigues
Title in Portuguese
Análise da impedância acústica na gasolina
Keywords in Portuguese
Coeficiente de reflexão
Gasolina
Impedância acústica
Abstract in Portuguese
Este trabalho analisa a qualidade dos combustíveis derivados de petróleo através de suas propriedades acústicas, visando assim um monitoramento contínuo e instantâneo. Analisa a variação da impedância acústica da gasolina com acréscimo de vários componentes como: tolueno, óleo diesel, querosene e álcool anidro. Os resultados obtidos mostram uma variação significativa embora não linear da impedância acústica nos combustíveis derivados de petróleo com acréscimo de tais substâncias.
Title in English
Acoustic impedance analysis of gasoline
Keywords in English
Acoustic impedance
Gasoline
Reflection coefficient
Abstract in English
This work is related with research project focused on the development of low cost and robust quality monitoring equipment and methods, suitable for application in the production of petrochemical compounds. The main objective of this work is to assess the quality of automotive gasoline through the analysis of its acoustic properties. More specifically, pure gasoline's acoustic impedance (defined as the product between its density and the velocity of propagation of an acoustic wave) is analyzed with respect to the addition of toluene, kerosene, ethanol and diesel fuel. Results show that the acoustic impedance is sensitive to the addition of such components, although this relation may be non-linear in some cases.
 
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Publishing Date
2016-02-17
 
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