Revista de Ciencia y Tecnología ISSN Impreso: 0378-052X ISSN electrónico: 2215-5708

OAI: https://revistas.ucr.ac.cr/index.php/cienciaytecnologia/oai
VISCOUS-­FLOW MECHANISM OF #6 FUEL OIL – PALM OLEIN MIXTURES
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Keywords

#6 fuel oil
palm olein
viscous flow
equation
búnker c
oleína de palma
flujo viscoso
ecuación de kendall-­monroe

Abstract

The viscosities of mixtures of #6 fuel oil and palm olein at 60 °C do not obey Kendall-­‐‐Monroe equation. Molecular considerations predict deviation from ideal-­‐‐mixture behaviour for this kind of “binary” material. It is proposed that the observed positive deviations are mainly due to looser molecular packing in the mixtures than in the “pure” components. Thus, mixing results in a lesser degree of hindrance for the viscous-­‐‐flow process. The empirical fit of fluidity as a function of olein mass fraction (x) is ln [Φmix/Φolein] = (2,72±0,05) + (5,6±0,3) x -­‐‐ (2,9±0,3) x2; r2 = 0,992, p < 0,01.
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