Propagação de incertezas: um experimento acadêmico simples

Ana Carolina Almeida Andrade; Heytor Fabricio Arantes Frauches Reis; Antonio Marcos de Oliveira Siqueira; Matheus Francióle Madureira; Ninna Alves Gouvea; Luara Fyalho Gonzaga; Tielly Lubiana de Menezes; Bruno Henrique de Faria Freire

doi:10.18540/jcecvl3iss3pp358-368

Authors

Ana Carolina Almeida Andrade Universidade Federal de Viçosa, UFV
Heytor Fabricio Arantes Frauches Reis Universidade Federal de Viçosa, UFV
Antonio Marcos de Oliveira Siqueira Universidade Federal de Viçosa, UFV https://orcid.org/0000-0001-9334-0394
Matheus Francióle Madureira Universidade Federal de Viçosa, UFV
Ninna Alves Gouvea Universidade Federal de Viçosa, UFV
Luara Fyalho Gonzaga Universidade Federal de Viçosa, UFV
Tielly Lubiana de Menezes Universidade Federal de Viçosa, UFV
Bruno Henrique de Faria Freire Universidade Federal de Viçosa, UFV

DOI:

https://doi.org/10.18540/jcecvl3iss3pp358-368

Keywords:

Measurement uncertainty, Fluid properties, Propagation of uncertainty, Chemical Engineering

Abstract

Uncertainties are an estimate of the reliability of a measure. They are intrinsic to any measurement process and have their origin both in procedural flaws as the own limitations of the instruments used for the measurements. Understanding how they spread is critical to the design of experiments, once that to minimize them we obtain more reliable data. This study provides a conceptual discussion about uncertainty and illustrates the application of the methodology in a simple experiment related to Fluid Mechanics in a Chemical Engineering course. The methodology used for the analysis of uncertainties was Kline and McClintock. Engineer Equation Solver software (EES) was used for the calculations.