Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques

Biodiesel lubricity is a crucial factor influencing engine performance and longevity, primarily determined by its fatty acid composition. This study evaluates the tribological properties of biodiesel derived from 15 different feedstocks using High-Frequency Reciprocating Rig (HFRR) tests, 3D-laser m...

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Main Authors: Atthaphon Maneedaeng, Attasit Wiangkham, Atthaphon Ariyarit, Anupap Pumpuang, Ekarong Sukjit
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Cleaner Engineering and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666790825000369
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author Atthaphon Maneedaeng
Attasit Wiangkham
Atthaphon Ariyarit
Anupap Pumpuang
Ekarong Sukjit
author_facet Atthaphon Maneedaeng
Attasit Wiangkham
Atthaphon Ariyarit
Anupap Pumpuang
Ekarong Sukjit
author_sort Atthaphon Maneedaeng
collection DOAJ
description Biodiesel lubricity is a crucial factor influencing engine performance and longevity, primarily determined by its fatty acid composition. This study evaluates the tribological properties of biodiesel derived from 15 different feedstocks using High-Frequency Reciprocating Rig (HFRR) tests, 3D-laser microscopy, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-ray Spectroscopy (EDS). The results indicate that biodiesel with higher unsaturation levels, particularly those rich in monounsaturated and polyunsaturated fatty acids, exhibits superior lubricity, characterized by reduced wear scar diameters and enhanced film formation. Conversely, biodiesels with high saturated fatty acid content demonstrate larger wear scar diameters and lower film formation efficiency, leading to increased friction and wear. To further analyze the impact of fatty acid composition on lubricity, an artificial intelligence (AI)-based approach using the Adaptive Boosting (AdaBoost) algorithm was implemented. The AI model effectively predicts wear scar diameter, friction coefficient, and film formation, providing insights into the complex interactions between fatty acid profiles and tribological performance. Feature importance analysis and sensitivity evaluation reveal that polyunsaturated fatty acids significantly enhance lubricity, while an optimal balance between saturated and unsaturated fatty acids is necessary to achieve stable frictional behavior. These findings emphasize the potential of AI-driven predictive modeling as a cost-effective tool for optimizing biodiesel lubricity, reducing the need for extensive experimental trials. The integration of advanced tribological testing and AI analysis offers a deeper understanding of biodiesel's lubrication mechanisms, supporting the development of high-performance, sustainable biofuels.
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spelling doaj-art-072a1bd72c6247989b6a0a7cfb3e818b2025-08-20T02:52:27ZengElsevierCleaner Engineering and Technology2666-79082025-03-012510091310.1016/j.clet.2025.100913Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniquesAtthaphon Maneedaeng0Attasit Wiangkham1Atthaphon Ariyarit2Anupap Pumpuang3Ekarong Sukjit4School of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima, 30000, ThailandDepartment of Industrial Engineering, Faculty of Engineering, Srinakharinwirot University, Ongkharak, Nakhon Nayok, 26120, ThailandSchool of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima, 30000, ThailandInstitute of Research and Development, Suranaree University of Technology, Muang, Nakhon Ratchasima, 30000, ThailandSchool of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima, 30000, Thailand; Corresponding author.Biodiesel lubricity is a crucial factor influencing engine performance and longevity, primarily determined by its fatty acid composition. This study evaluates the tribological properties of biodiesel derived from 15 different feedstocks using High-Frequency Reciprocating Rig (HFRR) tests, 3D-laser microscopy, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-ray Spectroscopy (EDS). The results indicate that biodiesel with higher unsaturation levels, particularly those rich in monounsaturated and polyunsaturated fatty acids, exhibits superior lubricity, characterized by reduced wear scar diameters and enhanced film formation. Conversely, biodiesels with high saturated fatty acid content demonstrate larger wear scar diameters and lower film formation efficiency, leading to increased friction and wear. To further analyze the impact of fatty acid composition on lubricity, an artificial intelligence (AI)-based approach using the Adaptive Boosting (AdaBoost) algorithm was implemented. The AI model effectively predicts wear scar diameter, friction coefficient, and film formation, providing insights into the complex interactions between fatty acid profiles and tribological performance. Feature importance analysis and sensitivity evaluation reveal that polyunsaturated fatty acids significantly enhance lubricity, while an optimal balance between saturated and unsaturated fatty acids is necessary to achieve stable frictional behavior. These findings emphasize the potential of AI-driven predictive modeling as a cost-effective tool for optimizing biodiesel lubricity, reducing the need for extensive experimental trials. The integration of advanced tribological testing and AI analysis offers a deeper understanding of biodiesel's lubrication mechanisms, supporting the development of high-performance, sustainable biofuels.http://www.sciencedirect.com/science/article/pii/S2666790825000369Fatty acid profilesBiodieselLubricityTribological propertiesAI techniques
spellingShingle Atthaphon Maneedaeng
Attasit Wiangkham
Atthaphon Ariyarit
Anupap Pumpuang
Ekarong Sukjit
Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
Cleaner Engineering and Technology
Fatty acid profiles
Biodiesel
Lubricity
Tribological properties
AI techniques
title Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
title_full Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
title_fullStr Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
title_full_unstemmed Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
title_short Investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
title_sort investigating the impact of fatty acid profiles on biodiesel lubricity using artificial intelligence techniques
topic Fatty acid profiles
Biodiesel
Lubricity
Tribological properties
AI techniques
url http://www.sciencedirect.com/science/article/pii/S2666790825000369
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AT atthaphonariyarit investigatingtheimpactoffattyacidprofilesonbiodiesellubricityusingartificialintelligencetechniques
AT anupappumpuang investigatingtheimpactoffattyacidprofilesonbiodiesellubricityusingartificialintelligencetechniques
AT ekarongsukjit investigatingtheimpactoffattyacidprofilesonbiodiesellubricityusingartificialintelligencetechniques