Temperature dependence of density, viscosity, thermal conductivity and heat capacity of vegetable oils for their use as biofuel in internal combustion engines

Zongo Augustin Sampawindé, Vaitilingom Gilles, Daho Tizane, Caillol Christian, Hoffmann Jean-François, Piriou Bruno, Valette Jérémy, Segda Bila Gérard, Higelin Pascal. 2019. Temperature dependence of density, viscosity, thermal conductivity and heat capacity of vegetable oils for their use as biofuel in internal combustion engines. Advances in Chemical Engineering and Science, 9 (1) : 44-64.

Résumé : This work gives tools to overcome the difficulty to determine experimentally physical properties for vegetable oils within the range of temperature typically observed during the injection phase in a diesel engine. Knowing vegetable oils' physical properties to these ranges of temperature is of fundamental importance when modeling their combustion in diesel engine. However, vegetable oils' experimental physical properties data are rare in the literature for temperature above 523 K. This paper describes experimental measurements and estimation methods for density, dynamic viscosity, thermal conductivity and heat capacity of vegetable oils for this particular range of temperature. The methodology uses several correlative methods using group contribution approach for each property and compares experimental data with predicted one to select the more accurate model. This work has shown the rapeseed and jatropha oils' physical properties can be satisfactorily predicted as a function of temperature using group contribution approach.

Mots-clés Agrovoc : propriété physicochimique, propriété technologique, température, composition chimique, huile végétale, viscosité dynamique, moteur à combustion interne, expérimentation en laboratoire, moteur diésel, biocarburant, carburant diésel, propriété thermique, expérimentation, propriété mécanique

Mots-clés géographiques Agrovoc : Burkina Faso

Mots-clés libres : Temperature dependance, Vegetable oils properties, Rapeseed oil, Jatropha oil, Physical properties, Group Contribution Method, Energy, Diesel engine

Auteurs et affiliations

• Zongo Augustin Sampawindé, Université de Ouagadougou (BFA) - auteur correspondant
• Vaitilingom Gilles, CIRAD-PERSYST-UPR BioWooEB (FRA)
• Daho Tizane, Université de Ouagadougou (BFA)
• Caillol Christian, Université d'Orléans (FRA)
• Hoffmann Jean-François, Université de Perpignan (FRA)
• Piriou Bruno, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0001-5780-3216
• Valette Jérémy, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0009-0000-3371-6417
• Segda Bila Gérard, Université de Ouagadougou (BFA)
• Higelin Pascal, Université d'Orléans (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611127/)

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