Review
Green & Sustainable Science & Technology
Rajendra Uppar, P. Dinesha, Shiva Kumar
Summary: Lubrication is a process that reduces wear on moving surfaces by using lubricants. The focus of current research is to create and use environmentally friendly lubricants made from renewable resources. Vegetable oil-based non-edible lubricants require chemical changes to improve their properties due to lower thermal and oxidative stability.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Agricultural Engineering
Samuel Gemsprim Muthurathinam, Ashoka Varthanan Perumal
Summary: The lubricating ability of vegetable oil-based lubricant additives with commercially used engine lubricant is studied in this article. The biolubricant blends, such as N10, P10, P20, and N20, are capable of significantly reducing wear and have appreciable frictional coefficients. These blends can be considered as primary alternatives to conventional lubricants in the long term.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Energy & Fuels
Paulo Roberto Campos Flexa Ribeiro Filho, Matheus Rocha do Nascimento, Celio Loureiro Cavalcante, Francisco Murilo Tavares de Luna
Summary: The demand for bio-based lubricants has increased due to growing environmental awareness. In this study, soybean-oil-based samples were synthesized and tested for tribological performance. The results showed that the bio-based lubricants had lower friction coefficients and wear compared to a mineral oil sample. Among the tested lubricants, BLOR showed the best performance. These findings suggest that bio-based lubricants have potential for use in mechanical systems.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Chemistry, Physical
Martin Hajek, Ales Vavra, Hector de Paz Carmona, Jaroslav Kocik
Summary: This review paper summarizes the current state-of-the-art of the chemical transformation of oils/fats to biofuels or bio-lubricants in transport, including two fuel types and three bio-lubricant synthesis methods, analyzing the conditions required for transformation and the properties of the final products, and discussing the comparison between biodiesel and green diesel with diesel from crude oil.
Article
Energy & Fuels
Ananthan D. D. Thampi, Sneha Edla, S. Rani, Baiju Sasidharan, K. S. Adithyan
Summary: The machining process is an essential procedure in the mechanical industry. Metal working fluids (MWFs) are commonly used lubricants in metal working operations. However, the widely used mineral oil-based MWFs are non-biodegradable and pose health risks. This study focused on developing a biodegradable cutting fluid (CF) using rice bran oil (RBO) as the base stock and clove oil as a bio-additive. The formulated green cutting fluid (GCF) showed improved lubricant properties and comparable performance to commercial cutting fluids.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Environmental Sciences
Chiew Tin Lee, Mei Bao Lee, Guo Ren Mong, William Woei Fong Chong
Summary: Vegetable oil-based bio-lubricants have the potential to replace mineral oil-based lubricants due to their biodegradability and renewability. However, there is a lack of detailed research on the tribological and physicochemical properties of these bio-lubricants. This study conducted a bibliometric analysis to examine the focus, trend, and future direction of vegetable oil-based bio-lubricants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Green & Sustainable Science & Technology
Amina Hamnas, G. Unnikrishnan
Summary: One of the biggest uses of oils is in the field of lubricants. Bio-based lubricating oils have become competitive with traditional petroleum-based oils due to government regulations, depletion of oil reserves, and negative environmental effects. Vegetable oils offer powerful alternatives and modifications to enhance biodegradability in lubricants. The study of bio-lubricants is highly important for researchers to explore the potential of different vegetable oils and additives. The article provides an overview of the charm and challenges of bio-lubricants, as well as techniques for enhancement and biodegradability assessment.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Clarissa Murru, Rosana Badia-Laino, Marta E. Diaz-Garcia
Summary: This article provides an overview of the potential uses of lipids as biodegradable lubricants, their advantages and limitations in different lubrication regimes, and discusses possible tribochemical reactions. It also examines the factors and pathways influencing their oxidation and the changes in physical properties under pressure and temperature. Special emphasis is given to the oxidation instability of fatty acids and vegetal oils, and the approaches to improve their oxidative and thermal stability are described in detail.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Fareeha Marriam, Adnan Irshad, Isra Umer, Muhammad Arslan Asghar, Muhammad Atif
Summary: Epoxy is widely used in industry for various applications, but its production from fossil fuels causes environmental pollution. Epoxidized vegetable oils (EVOs) are a potential replacement for fossil fuel-based epoxy due to their abundance, renewability, non-toxicity, and environmental friendliness. This review provides a compilation of information on different methods of oxidizing vegetable oils and the applications of epoxidized vegetable oils.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Engineering, Mechanical
Marco Bellini, Sara Bianchi, Federica Zaccheria, Nicoletta Ravasio
Summary: This paper presents an innovative technological and preventive approach of substituting base fluids with natural vegetable oil based esters in metal working fluids, reducing air pollution significantly. Additionally, an innovative selective hydrogenation process is introduced to enhance the oxidative stability of rapeseed oil, resulting in increased stability while maintaining acceptable cold properties compared to High Oleic Sunflower Oil.
TRIBOLOGY INTERNATIONAL
(2021)
Review
Chemistry, Physical
Sergio Nogales-Delgado, Jose Maria Encinar, Juan Felix Gonzalez, Jaehoon Kim
Summary: The use of biolubricants as an alternative to petroleum-based products has been important in the past decade, and there is increasing interest in bio-based products. Researchers have studied the production of biolubricants from vegetable oil crops, focusing on raw materials, production methods, and characteristics. The factors affecting quality parameters have been analyzed, and future research directions have been identified.
Article
Energy & Fuels
Jyoti Porwal, Praveen K. Khatri, Savita Kaul, Babita Behera, Neeraj Atray, Suman L. Jain
Summary: The present paper describes the synthesis of alpha-hydroxy ethers as bio-lubricants using a polymer-grafted sulfonated carbon composite catalyst. Various alpha-hydroxy ethers were synthesized and evaluated for their physicochemical properties, and the most promising bio-lubricants were identified.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Pranav Prasannakumar, Sneha Edla, Ananthan D. Thampi, Muhammed Arif, Rani Santhakumari
Summary: The trend of using non-edible vegetable oils as a potential base stock for industrial lubricants is increasing. This study focuses on the chemical modification of Calophyllum inophyllum oil (CIO) by epoxidation and transesterification processes to improve its oxidation stability. The experimental results show that the modified CIO has better lubricant properties and oxidative stability, making it a potential base-stock for bio-lubricant formulation.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Jeerati Ob-eye, Kanokwan Chaiendoo, Vorranutch Itthibenchapong
Summary: In this study, biolubricants were produced through a two-step catalytic conversion process, resulting in products that can potentially be utilized as biodegradable-grade lubricants for various industrial applications with their desirable flow and viscosity properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Review
Engineering, Mechanical
Diaa M. Abd Elhaseeb, Mohamed Kamal Ahmed Ali, M. F. Ezzat, M. Mourad
Summary: This review investigates recent advances and research gaps in the automotive-related applications of bio-based lubricants. The main focus is on the tribological and thermophysical properties of nanoparticles in bio-oils and the key mechanisms behind the superior performance of bio-lubricants. The review also highlights the major challenges in developing bio-lubricants performance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Engineering, Mechanical
Ananthan D. Thampi, Abhishek R. John, M. Muhammed Arif, S. Rani
Summary: Vegetable oils have potential as base materials for bio-lubricants, and their lubricant properties can be significantly improved through chemical modification processes such as epoxidation and ring opening reactions.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2021)
Article
Biochemical Research Methods
E. Sneha, Amjesh Revikumar, Jaykumar Y. Singh, Ananthan D. Thampi, S. Rani
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2020)
Review
Engineering, Mechanical
P. Pranav, E. Sneha, S. Rani
Summary: This paper provides a detailed review of various cutting fluids (CFs), highlighting the importance of sustainable CFs such as plant-based alternatives. The use of bio-based oils and additives in machining processes is discussed, emphasizing the potential for vegetable oils to be a base oil for industrial CFs. The aim is to reduce the use of mineral oils and introduce sustainability in production processes.
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2021)
Article
Chemistry, Applied
Ananthan D. Thampi, Deepkant Alokkan, Gokul Biju, Baiju Sasidharan, Santhakumari Rani
Summary: The study utilized rice bran oil to formulate 16 different grease samples, evaluating their wear and friction properties by adjusting parameters such as thickener ratio. Results indicated that the variation of these parameters during grease formulation significantly influenced the properties.
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
(2021)
Article
Energy & Fuels
Ananthan D. Thampi, Gokul Biju, Deepkant Alokkan, Baiju Sasidharan, S. Rani
Summary: This study examines the consistency and tribological measurements of bio-grease, consisting of calcium 12-hydroxy stearic acid as a thickener and sebacic acid as a complexing agent dispersed in rice bran oil. The results indicate that variation in the formulation parameters plays a vital role in the evaluated properties of the grease.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
E. Sneha, G. V. S. Karthik, Ananthan D. Thampi, Abhijith Krishna, Amjesh Revikumar, S. Rani
Summary: This study investigated the effect of various herbal oils on the oxidative stability of vegetable oils, optimized the concentration of additives, and found that holy basil oil showed better oxidative stability in Karanja oil. Quantum chemical studies supported the experimental data.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Multidisciplinary
Abhijith Kunneparambil Sukumaran, Ananthan D. Thampi, E. Sneha, Muhammed Arif, S. Rani
Summary: This research experimentally investigated the effect of bovine serum albumin (BSA) as a bio-molecular additive on the lubricant properties of rice bran oil (RBO), indicating that the formulated oil-protein combination can be a potential base stock for bio-lubricants and bio-cutting fluids.
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
(2021)
Article
Energy & Fuels
Sneha Edla, Ananthan D. Thampi, Abhijith B. K. Pillai, Vishnu V. Sivan, M. Muhammed Arif, Baiju Sasidharan, S. Rani
Summary: The extensive use of non-biodegradable and toxic mineral oil-based cutting fluids has negatively impacted the environment and human health. Therefore, the development of eco-friendly cutting fluids is necessary. Vegetable oils have been identified as an alternative solution due to their lubricant properties similar to commercial mineral oil. The addition of herbal oils improves the stability and performance of the cutting fluid.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Pranav Prasannakumar, Sneha Edla, Ananthan D. Thampi, Muhammed Arif, Rani Santhakumari
Summary: The trend of using non-edible vegetable oils as a potential base stock for industrial lubricants is increasing. This study focuses on the chemical modification of Calophyllum inophyllum oil (CIO) by epoxidation and transesterification processes to improve its oxidation stability. The experimental results show that the modified CIO has better lubricant properties and oxidative stability, making it a potential base-stock for bio-lubricant formulation.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Pranav Prasannakumar, Sabarinath Sankarannair, Chinchu Bose, Rani Santhakumari, S. N. Jyothi
Summary: The rising demand for lubricants and unstable government policies have led to the need for a renewable base stock for petroleum-based lubricants. Non-edible vegetable oils, due to their abundance worldwide and biodegradability, provide an environmentally friendly alternative to conventional lubricants. This study focuses on the feasibility of using Cashew nut shell oil (CNSO) as a lubricant base stock, specifically comparing mechanically expelled oil from boiled cashew shells (MEO) and oil extracted from raw cut shells (SEO). The evaluation of lubricating properties shows that MEO is more abundant and exhibits a lower wear scar diameter, better thermal properties, viscosity index, and oxidative stability compared to SEO, making it a preferable option as a lubricant.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Mechanical
Vivek V. Kamal, Nakul Pradeep, Rani Santhakumari Amma, Muhammed Arif, Ananthan D. Thampi, Sneha Edla
Summary: The majority of industries globally utilize mineral oil-based lubricants due to their cost, availability, and compatibility. However, the environmental impact and depletion of mineral oil-based products have led to the search for potential alternatives. This study explores the use of biodegradable vegetable oils as replacements, along with the synergistic effect of herbal oils and nanoparticles.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Energy & Fuels
Ananthan D. D. Thampi, Sneha Edla, S. Rani, Baiju Sasidharan, K. S. Adithyan
Summary: The machining process is an essential procedure in the mechanical industry. Metal working fluids (MWFs) are commonly used lubricants in metal working operations. However, the widely used mineral oil-based MWFs are non-biodegradable and pose health risks. This study focused on developing a biodegradable cutting fluid (CF) using rice bran oil (RBO) as the base stock and clove oil as a bio-additive. The formulated green cutting fluid (GCF) showed improved lubricant properties and comparable performance to commercial cutting fluids.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Mechanical
Busra Duran, Jerome Cavoret, David Philippon, Fabrice Ville, Arnaud Ruellan, Frank Berens
Summary: This study analyzes the changes in the physicochemical properties and tribological performances of gear transmission oils during field operation, finding differences from traditional engine oils.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Baocheng Liu, Hongsheng Chen, Jun Zhou, Jing Wang, Wenxian Wang, Xiaochun Chen, Sanxiao Xi
Summary: This study used fast hot pressing sintering to fabricate WC/AlCoCrFeNi2.1 metal matrix composites (MMCs). It was found that the addition of reinforced particles increased the microhardness, nanoindentation and wear resistance of the MMCs. During frictional processes, an oxide film formed, providing material protection, enhancing stability and reducing friction-induced losses.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Pradip Kumar Verma, Alok Singh
Summary: This study investigates the mechanical properties and wear resistance of CoMoMnNiV high entropy alloy reinforced aluminium matrix composite processed through stir-squeeze casting assisted with an ultrasonic transducer. The results show significant improvements in mechanical properties and wear resistance, with the composite containing 8 wt% HEA demonstrating the highest resistance to wear. Optical microscopy, SEM, and an optical profilometer were used for a thorough examination of the microstructure and worn surface.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Zhenghai Yang, Yingjian Song, Jinlong Jiao, Wenbo Li, Bao Shangguan, Yongzhen Zhang
Summary: This study investigated the friction, wear properties, and current-carrying properties of copper-graphite composites paired with brass C28000. The results showed that the current-carrying properties of the composite materials were excellent, but their wear rate was the main limiting factor. Furthermore, an increase in the thickness of the graphite layer led to an improvement in the uniformity of damage.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Moustafa Mahmoud Yousry Zaghloul, Karen Steel, Martin Veidt, Michael T. Heitzmann
Summary: This research evaluates and compares the impact of different material types on the tribological characteristics of Polyamide 6 composites, and finds that glass fiber-reinforced Polyamide 6 exhibits better friction and wear performance under high-pressure velocity factors.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Shaoqing Qin, Lida Zhu
Summary: In this paper, the surface and subsurface damage of laser assisted grinding CrCoNi medium entropy alloys were investigated using molecular dynamics simulations. The results showed that the application of laser energy can reduce cutting forces and minimize subsurface damage.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Kaikui Zheng, Youxi Lin, Tingzheng Lai, Chenghui Gao, Ming Liu, Zhiying Ren
Summary: The study investigated the use of waste foundry resin-bonded sand as a substitute for copper in resin-based brake material. It found that the waste sand was more favorable for improving the overall friction and wear properties of the material compared to copper. Waste sand benefited the material by forming a friction layer, leading to increased friction coefficient and stability. Brake material with 10-15% waste sand showed excellent heat-fade resistance.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Dayang Li, Fanhao Zhou, Yutong Gao, Kun Yang, Huimin Gao
Summary: This article introduces a continuous prediction model based on deep learning for predicting the power output of steam turbines. The model uses long short term memory (LSTM) method to develop a trend prediction model and optimizes the prediction model through feature selection method. Experimental results show that the model outperforms other models in terms of prediction performance.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Tomohiro Toyoda, Ryo Yasuike, Toshihiro Noda
Summary: In this study, a elasto-plastic constitutive model of friction incorporating the concept of superloading surface was developed based on the subloading friction model. The proposed model achieves a smooth transition of friction by describing the evolution rule of structure, treating the state with static friction coefficient larger than kinetic friction coefficient as the bulkiness of structure. The positive definiteness of the plastic multiplier, loading condition, and material parameters were derived, and the validity of the proposed model in accordance with the subloading-friction model was confirmed through a stick-slip simulation of a mass-spring system.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
P. Balaji, B. Surya Rajan, K. Sathickbasha, P. Baskara Sethupathi, Deviga Magadevan
Summary: This study emphasizes the importance of using a variety of solid lubricants with different oxidation temperature regimes to enhance the tribological performance of brake pads.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Jian Ma, Yancong Liu, Javad Mostaghimi, Na Zhang
Summary: This paper investigates the influence of preparation strategies on the lubrication properties of surface textures. Three laser scanning strategies are proposed to achieve a sinusoidal textured surface, and the evolution of surface structure and chemical composition is discussed. The findings show that ridge structures enhance anti-wear properties but also increase the friction coefficient. However, the oil cover preparation method prevents the formation of ridges and improves wettability.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Mohammad Roostaei, Arvin Taghizadeh Tabrizi, Hossein Aghajani
Summary: In this research, the Al2O3/MoS2 nanocomposite coating layer was successfully applied on the surface of Ti-6Al-4 V alloy. The relation between the surface characteristics and wear resistance of the coating was studied using atomic force microscopy analysis and pin-on-disk wear test method. The results showed that the nanocomposite coating significantly reduced the wear rate and provided an equation to calculate the Lancaster coefficient.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Musa Bilgin, Sener Karabulut, Halil Karakoc, Yunus Kayir, Murat Sarikaya
Summary: This study investigates various methods to improve the machinability efficiency of Inconel 718 alloy while considering their effect on microstructural properties. The results show that hot+PMQL, hot+SiCNMQL, and hot+Al2O3-NMQL contribute significantly to the improvement of machinability characteristics. The EBSD analysis also reveals that a limited area is affected by heat in the hot machining environment and that the removal of the heated layer during milling process helps preserve the microstructure.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Q. Gao, Y. Fan, Y. G. Wu, J. L. Liu, J. Wang, L. Li
Summary: Fretting wear significantly affects the hysteresis behavior of the contact surface and leads to joint degradation. This study investigates the influence of harmonic normal force on the evolution of interface morphology and contact parameters with fretting wear. The results show that the harmonic normal force can significantly influence the hysteresis loop and the energy dissipation distribution on the contact surface.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Engineering, Mechanical
Benjamin Weiland, Floriane Leclinche, Anis Kaci, Brigitte Camillieri, Betty Lemaire-Semail, Marie -Ange Bueno
Summary: This study presents a systematic approach to generating control signals for a tactile simulator that simulate the touch of textile fabrics. By using a friction modulation tactile surface and acquiring forces from real surfaces with artificial finger mimicking fingerprints, control signals are generated and processed in the frequency domain before sending them to the tactile stimulator. The study focuses on the potential benefits of incorporating fingerprint information in fabric simulations to achieve a more realistic tactile perception. A sensory analysis with 36 participants using the generated control signals showed better discrimination without fingerprint information.
TRIBOLOGY INTERNATIONAL
(2024)
