Potential of RBD Palm Oil as a Lubricant in Textured Journal Bearing using CFD with Consideration of Cavitation and Conjugate Heat Transfer

Zuraidah Rasep; Muhammad Noor Afiq Witri Muhammad Yazid; Syahrullail Samion; Nor Azwadi Che Sidik

doi:10.37934/cfdl.14.2.98110

Authors

Zuraidah Rasep School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia
Muhammad Noor Afiq Witri Muhammad Yazid School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia
Syahrullail Samion School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia
Nor Azwadi Che Sidik Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia

DOI:

https://doi.org/10.37934/cfdl.14.2.98110

Keywords:

RBD palm oil, Textured journal bearing, CFD, ANSYS FLUENT, Tribology, Lubricant

Abstract

The revolution of tribology technology involved lubricant has driven researchers recently due to strict environmental policy. RBD palm oil has remarkable properties that can improve the performance of plain or textured journal bearings. At the same time, surface texture modification can improve journal bearing performance. The potential of RBD palm oil as an environmentally friendly lubricant in textured journal-bearing applications was investigated in this case study. ANSYS FLUENT was chosen as a method of analysis. The validation study was compared with experimental data to validate the correct approach with actual journal bearing. In addition, the cavitation model and conjugate heat transfer were considered in this case study. Results revealed that RBD Palm oil performed well when the surface texture was introduced at the divergent area as compared to convergent area and plain journal bearing. The suitable condition of textured journal bearing needs to be chosen correctly to optimize the maximum film pressure of journal bearing load and load-carrying capacity of journal bearing. The optimum condition of a textured journal bearing is when the rotational speed of the journal bearing is above 800 rpm, and the eccentricity ratio is above 0.3. In conclusion, combining the correct location of surface texture and the suitable parameter condition of journal bearing will make RBD palm oil perform well as a renewable source of lubricant in textured journal bearing applications.

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Author Biographies

Zuraidah Rasep, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia

zuraidahr@unikl.edu.my

Muhammad Noor Afiq Witri Muhammad Yazid, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia

mnafiqwitri@utm.my

Syahrullail Samion, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor, Malaysia

syahruls@mail.fkm.utm.my

Nor Azwadi Che Sidik, Department of Mechanical Precision Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia

azwadi@utm.my

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