Abstract
This work aims to study thermo-physical properties, including thermal conductivity, viscosity, viscosity index, and rheology of vegetable oil-based nano-lubricant. Synthesis of nano-lubricant was done using vegetable seed oil (castor oil) and copper oxide (CuO) nano-particles using a magnetic stirrer and probe-type sonicator for breaking agglomerate. The thermal conductivity of samples was measured using transient hot-wire liquid thermal conductivity meter, and the effect of nano-particles was analyzed. Viscosity and viscosity index (VI) of the nano-lubricants thus prepared have been analyzed by Stabinger viscometer. The variation of viscosity of nano-lubricant with the shear rate was reported using an advanced air bearing rheometric system. The viscosity variation with respect to shear rate showed a decreasing trend, whereas the viscosity variation with respect to concentration showed an increasing trend. The results show that it is possible to increase the stability of samples in terms of viscosity variation with temperature and shear rate using nano-particles, hence makes it suitable for lubricant applications.
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Prakash, O., Kumar, A., Ghosh, S.K. (2021). Thermo-physical Investigation of Vegetable Oil-Based Nano-lubricant. In: Revankar, S., Sen, S., Sahu, D. (eds) Proceedings of International Conference on Thermofluids. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-7831-1_39
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DOI: https://doi.org/10.1007/978-981-15-7831-1_39
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