The Tribology Evaluation on a Four-Ball Tribometer Lubricated by Al2O3/PAG Nanolubricants by Safril, Saka, Wan Hamzah, Azmi, M. Z., Sharif, N. N. M., Zawawi

“…The average COF values of the nanolubricants of 0.01%, 0.03%, and 0.05% were 0.104, 0.078, and 0.117, while the pure lubricant was 0.095. Further investigation on friction torque resulted in a decrease in the pure lubricant of 0.064%, and for nanolubricant Al2O3/PAG ND12, a decrease of 0.087%, 0.057%, and 0.092%, respectively. …”

Comparative Study of Thermo-physical Properties of SiO2 and Al2O3 Nanoparticles Dispersed in PAG Lubricant by A. A. M., Redhwan, W. H., Azmi, M. Z., Sharif, R., Mamat, Nurul Nadia, Mohd Zawawi

“…As a result, nanoparticles are dispersed in the lubricants of automobile air conditioning compressor for heat transfer and tribology enhancement. …”
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Tribology Investigation of Automotive Air Condition (AAC) Compressor by using Al2O3/PAG Nanolubricant by Aminullah, A. R. M., Azmi, W. H., A. A. M., Redhwan, M. Z., Sharif, Nurul Nadia, Mohd Zawawi, K., Kadirgama, M. N. S., Ashraf

“…Lubrication is a requisite for any mechanical equipment that moved to avoid wear of sliding parts and enhance the equipment operation consistency. …”
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Effect of Nanolubricant on Evaporator and Condenser Pressure of Automotive Air Conditioning System by M. Z., Sharif, Azmi, W. H., Mohamad Redhwan, Abd. Aziz

“…In this paper, the nanolubricant and conventional lubricant performance in the AAC system was compared. …”
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Coefficient of Friction and Wear Rate Effects of Different Composite Nanolubricant Concentrations on Aluminium 2024 Plate by Nurul Nadia, Mohd Zawawi, Azmi, W. H., A. A. M., Redhwan, M. Z., Sharif

“…Wear of sliding parts and operational machine consistency enhancement can be avoided with good lubrication. Lubrication reduce wear between two contacting and sliding surfaces and decrease the frictional power losses in compressor. …”
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The stability of TiO2/POE nanolubricant for automotive air-conditioning system of hybrid electric vehicles by A. H, Hamisa, Mohd Yusof, Taib, W. H., Azmi, R., Mamat, M. Z., Sharif

“…Nanolubricant are containing nanoparticles that are mixed with the base lubricant. Nanoparticle consists of ultra-fine size of particles from 1 to 100 nm. …”
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Investigation of Thermal Conductivity and Viscosity of Al2O3/PAG Nanolubricant for Application in Automotive Air Conditioning System by M. Z., Sharif, Azmi, W. H., A. A. M., Redhwan, R., Mamat

“…The highest thermal conductivity and viscosity ratio were observed to be 1.04 and 7.58 times greater than the PAG lubricant for 1.0% and 0.4% concentrations, respectively. …”
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Performance analysis of SiO₂PAG nanolubricant in automotive air conditioning system by M. Z., Sharif

“…Then, the viscosity and thermal conductivity of the SiO2 nanoparticles dispersed in Polyalkylene glycol (PAG) lubricants for 0 to 1.5% volume concentrations and 30 to 80 °C working temperatures were investigated. …”
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Thermal Conductivity Enhancement Of AL2O3 and SIO2 Nanolubricants by Azmi, W. H., A. A. M., Redhwan, M. Z., Sharif, R., Mamat

“…(m K)-1 and enhancement of 1.04 higher than the base lubricant for Al2O3 with 1.0 volume concentration. …”
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Preparation and Stability of Silicone Dioxide Dispersed in Polyalkylene Glycol based Nanolubricants by M. Z., Sharif, Azmi, W. H., Redhwan, A. A. M., Zawawi, N. M. M.

“…Two-step method is the most common method used in the process of adding nanoparticles dispersed in base lubricant because of the simplicity of the process to prepare a stable solution. …”
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Thermo-Physical Properties of Metal Oxides Composite Nanolubricants by Nurul Nadia, Mohd Zawawi, W. H., Azmi, A. A. M., Redhwan, M. Z., Sharif

“…AI2O3, SiO2 and TiO2 nanoparticks were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of preparation. …”
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Development of Nanorefrigerants for Various Types of Refrigerant based: A Comprehensive Review on Performance by A. A. M., Redhwan, Azmi, W. H., M. Z., Sharif, R., Mamat

“…Nanorefrigerants and nanolubricants are formed when nanoparticles are dispersed in refrigerant/lubricant based. The use of nanorefrigerants or refrigerant with nanolubricant mixtures is one of the passive techniques in enhanced heat transfer performance and reducing energy consumption. …”
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Potential of Nanorefrigerant and Nanolubricant on Energy Saving in Refrigeration System – A Review by Azmi, W. H., M. Z., Sharif, Yusof, T. M., R., Mamat, A. A. M., Redhwan

“…In the refrigeration system, the effort to improve the efficiency of the system is by introducing nanoparticles in refrigerant(nanorefrigerant) and in lubricant (nanolubricant). In this paper, a comprehensive review is carried out to investigate the impact of nanorefrigerant and nanolubricant on energy saving. …”
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Thermal Conductivity Enhancement of Al2O3 and SiO2 Nanolubricants for Application in Automotive Air Conditioning (AAC) System by Redhwan, A. A. M., Azmi, W. H., M. Z., Sharif, Nurul Nadia, Mohd Zawawi

“…(m�K)-1 and enhancement of 1.04 times higher than the base lubricant for Al2O3 with 1.0 volume concentration. …”
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Thermo-Physical Properties of Al2O3-SiO2/PAG Composite Nanolubricant for Refrigeration System by Nurul Nadia, Mohd Zawawi, Azmi, W. H., Redhwan, A. A. M., M. Z., Sharif, Sharma, K. V.

“…Al2O3 and SiO2 nanoparticles were dispersed in the Polyalkylene Glycol (PAG 46) lubricant using the two-step method of preparation. …”
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Improvement of nanofluid stability using 4-step UV-vis spectral absorbency analysis by M. Z., Sharif, Azmi, W. H., A. A. M., Redhwan, N. N. M., Zawawi, R., Mamat

“…SiO2 nanoparticles were dispersed in the PAG lubricant by using the two-step preparation method. …”
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Experimental investigation on thermo-physical properties of metal oxide composite nanolubricants by N. M. M., Zawawi, Azmi, W. H., A. A. M., Redhwan, M. Z., Sharif, Mahendran, Samykano

“…The prepared Al2O3–SiO2, Al2O3–TiO2 and TiO2–SiO2 composite metal oxide nanoparticle was dispersed in Polyalkylene Glycol (PAG 46) lubricant by espousing the two-step preparation method. …”
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Application of response surface methodology in optimization of automotive air-conditioning performance operating with SiO2/PAG nanolubricant by Redhwan, A. A. M., Azmi, W. H., Najafi, G., M. Z., Sharif, N. N. M., Zawawi

“…The results depicted that adding SiO2 nanoparticle into PAG lubricant will enhance the COP of AAC. Optimization of independent variables was performed using the desirability approach of the RSM with the goal of maximizing the heat absorb and COP, consequently, minimizing the compressor work. …”
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Energy saving in automotive air conditioning system performance using SiO2/PAG nanolubricants by M. Z., Sharif, Azmi, W. H., A. A. M., Redhwan, R., Mamat, Najafi, G.

“…Nanotechnology can be implemented into the lubricant of the AAC compressor which can aid in reducing the power consumption. …”
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Comparative air conditioning performance using SiO2 and Al2O3 nanolubricants operating with Hydrofluoroolefin-1234yf refrigerant by M. Z., Sharif, W. H., Azmi, N. N. M., Zawawi, M. F., Ghazali

“…The SiO2 nanolubricant performed with better cooling capacity, higher power consumption and lower coefficient of performance than the polyalkylene glycol-based lubricant. In contrast, the Al2O3 nanolubricant improved the coefficient of performance and reduced the power consumption. …”
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