Corrosion testing of a diesel engine common rail system using various types of biodiesel

Authors

  • A. Alcántara-Carmona Author
  • J. Sáez-Bastante Author
  • M.P. Dorado Author

DOI:

https://doi.org/10.24084/repqj15.344

Keywords:

Biofuel, materials compatibility, acid value variation, mass loss, oxidation

Abstract

In this paper, the behavior of different types of biodiesel (from rapeseed, soybean, coconut and palm oils) in contact with different parts of a common rail injection system was evaluated. Stability tests were carried out by static immersion of test pieces in biodiesel at two different temperatures, 50ºC and 75ºC. After 15 days of immersion, interaction between pieces and biodiesel was evaluated considering two parameters: mass variation of pieces and biodiesel acid value (AV). A mass loss in both injector and pipes was found, no matter which biodiesel was used. In case soybean oil biodiesel was used, a slightly lower loss was achieved. On the other hand, coconut oil biodiesel showed a significant acid value increase with respect to the others. The temperature increase influenced mass loss and acid value increase.

Author Biographies

  • A. Alcántara-Carmona

    Department of Physical Chemistry and Applied Thermodynamics 
    E.P.S., University of Córdoba 
    Campus Universitario de Rabanales – 14071 Córdoba (Spain)

  • J. Sáez-Bastante

    Department of Physical Chemistry and Applied Thermodynamics 
    E.P.S., University of Córdoba 
    Campus Universitario de Rabanales – 14071 Córdoba (Spain)

  • M.P. Dorado

    Department of Physical Chemistry and Applied Thermodynamics 
    E.P.S., University of Córdoba 
    Campus Universitario de Rabanales – 14071 Córdoba (Spain)

Downloads

Published

2024-01-12

Issue

Vol. 15 No. 3 (2017)

Section

Articles