Communication Dans Un Congrès Année : 2017

An experimental comparison between two methods for biofuels emulsification

Résumé

The scope of this investigation is to formulate and characterize emulsified fuels using a micro-channel emulsifier and compare this against emulsions produced using a magnetic stirrer. The emulsified fuels are formulated using a blend of rapeseed oil in diesel fuel as continuous phase and water as dispersed phase, as well as Sorbitan Sesquioleate as surfactant. Several stable dispersed systems classified as emulsions based on their optical appearanceand dispersed droplet size are obtained. A better stability time and smaller mean droplet size for the emulsions formulated with micro-channel emulsifier is observed, compared to the same systems obtained through magnetic stirrer. The dynamic viscosity measured as a function of shear rate indicated non-Newtonian behavior with a shear-thinning response for all emulsions. An increase of water percentage led to emulsified fuels with higher viscosity levels,highlighting a strong dependency of the dispersed phase content on dispersed system viscosity.

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Dates et versions

hal-01741215 , version 1 (22-03-2018)

Identifiants

  • HAL Id : hal-01741215 , version 1

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Eliezer Ahmed Melo-Espinosa, Ramón Piloto-Rodríguez, Jérôme Bellettre, Agnès Montillet, Sebastian Verhelst. An experimental comparison between two methods for biofuels emulsification. 9ème conférence internationale « Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, Jun 2017, Iguazu Falls, Brazil. ⟨hal-01741215⟩
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