Comparative corrosion characteristics of automotive materials in Jatropha biodiesel

Ahmmad, Md. Shahabuddin and Masjuki, Haji Hassan and Kalam, Md. Abul (2018) Comparative corrosion characteristics of automotive materials in Jatropha biodiesel. International Journal of Green Energy, 15 (6). pp. 393-399. ISSN 1543-5075

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Official URL: https://doi.org/10.1080/15435075.2018.1464925

Abstract

This study investigated the corrosion characteristics of widely used automotive materials: copper (Cu), aluminum (Al) and stainless steel (SS) in Jatropha biodiesel. The corrosion rate of the materials was measured by the weight loss and changes in the surface morphology using immersion test in biodiesel. Before and after the immersion test, fuel samples were characterized by the change in chemical composition, viscosity, density, and water content. Experimental results revealed that Cu had the highest corrosion rate, while SS had the lowest. The main fatty acids observed in the tested biodiesel were oleic (44.6 wt %), linoelic (31.9 wt %), Palmitic (14.6 wt %), and Stearic (7.6 wt %). Apart from linoelic acid, the compositions of all other acids were increased after the immersion test of 1600 h. Also, the viscosity, density, and water content of the fuel samples were increased after the immersion test. However, these properties were within the maximum standard limit except water content.

Item Type: Article
Uncontrolled Keywords: Aluminum; copper; corrosion; Jatropha biodiesel; stainless steel
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 30 Sep 2019 01:06
Last Modified: 30 Sep 2019 01:06
URI: http://eprints.um.edu.my/id/eprint/22617

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