Bio-based lubricant with additives: tribological performances in hydrodynamic journal bearing

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL

Industrial Lubrication and Tribology Pub Date : 2024-04-18 DOI:10.1108/ilt-11-2023-0363

Amanda Norazman, Zulhanafi Paiman, Syahrullail Samion, Muhammad Noor Afiq Witri Muhammad Yazid, Zuraidah Rasep

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引用次数: 0

Abstract

Purpose

The purpose of this paper is to investigate the performance of bio-based lubricants (BBL), namely, palm mid-olein (PMO) enriched with an antioxidant agent, tertiary-butylhydroquinone (TBHQ) and a viscosity improver, ethylene-vinyl acetate (EVA), in journal bearing (JB) applications.

Design/methodology/approach

Samples of the BBL were prepared by blending it with TBHQ and EVA at various blending ratios. The oxidative stability (OS) and viscosity of the BBL samples were examined using differential scanning calorimetry and a viscometer, respectively. Meanwhile, their performance in JB applications was evaluated through the use of a JB test rig with a 0.5 length-to-diameter ratio at various operating conditions.

Findings

It was found that the combination of PMO + TBHQ + EVA demonstrated a superior oil film pressure and load-carrying capacity, resulting in a reduced friction coefficient and a smaller attitude angle compared to the use of only PMO or VG68. However, it was observed that the addition of TBHQ and EVA to the PMO did not have a significant impact on the minimum oil film thickness.

Practical implications

The results would be quite useful for researchers generally and designers of bearings in particular.

Originality/value

This study used PMO as the base stock, and its compatibility with TBHQ and EVA was investigated in terms of its OS and viscosity. The performance of this treated BBL was evaluated in a hydrodynamic JB.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2023-0363/

查看原文本刊更多论文

含添加剂的生物基润滑剂：流体动力轴颈轴承的摩擦学性能

本文旨在研究生物基润滑油（BBL），即富含抗氧化剂叔丁基对苯二酚（TBHQ）和粘度改进剂乙烯-醋酸乙烯酯（EVA）的棕榈中油脂（PMO）在轴颈轴承（JB）应用中的性能。使用差示扫描量热仪和粘度计分别检测了 BBL 样品的氧化稳定性（OS）和粘度。研究结果发现，与仅使用 PMO 或 VG68 相比，PMO + TBHQ + EVA 的组合具有更出色的油膜压力和承载能力，从而降低了摩擦系数，减小了姿态角。但观察发现，在 PMO 中添加 TBHQ 和 EVA 对最小油膜厚度的影响并不大。在流体力学 JB 中对这种处理过的 BBL 的性能进行了评估。同行评议本文的同行评议历史见：https://publons.com/publon/10.1108/ILT-11-2023-0363/。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.