Energy saving in automotive air conditioning system performance using SiO2/PAG nanolubricants

The use of automotive air conditioning (AAC) nowadays is essential because of the hot climate and global warming. The AAC increases the overall fuel consumption in order to cool down the car cabin, hence releases more CO 2 into the atmosphere. Nanotechnology can be implemented into the lubricant of...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2019-01, Vol.135 (2), p.1285-1297
Main Authors: Sharif, M. Z., Azmi, W. H., Redhwan, A. A. M., Mamat, R., Najafi, G.
Format: Article
Language:English
Subjects:
Air conditioners
Air conditioning
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Coefficient of friction
Energy conservation
Inorganic Chemistry
Lubricants
Lubricants & lubrication
Measurement Science and Instrumentation
Nanotechnology
Physical Chemistry
Polymer Sciences
Power consumption
Pressure ratio
Product development
Sedimentation
Silicon dioxide
Stability analysis
Tribology
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Summary:The use of automotive air conditioning (AAC) nowadays is essential because of the hot climate and global warming. The AAC increases the overall fuel consumption in order to cool down the car cabin, hence releases more CO 2 into the atmosphere. Nanotechnology can be implemented into the lubricant of the AAC compressor which can aid in reducing the power consumption. Therefore, this paper investigates the effect of SiO 2 /PAG nanolubricants on the AAC performance and energy saving. The SiO 2 /PAG nanolubricants were prepared using the two-step method. The sedimentation observation and UV–Vis spectrophotometer evaluation confirmed the stability of the nanolubricants. The tribology analysis revealed the coefficient of friction of SiO 2 /PAG nanolubricants better than the original PAG lubricants. The performance parameters and power consumption (energy saving) of AAC system using SiO 2 /PAG nanolubricants were compared with PAG lubricants. The condenser pressure and the pressure ratio of the AAC system decreased by an average of 10.8% and 5.6%, respectively. The volumetric heat absorb increased up to 3% and the coefficient of performance increased by an average of 21%. The compressor work and power consumption of the AAC system reduced by 16.5% and 4%, respectively. As a conclusion, it was recommended to use 0.05% volume concentration of SiO 2 /PAG nanolubricants in AAC compressor for optimum system performance and energy saving.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-018-7728-3