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1 Journal of Mechanical and Energy Engineering

1 2021

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Experiment to determine the specific heat of oils

Deshpande Viraja, Jyothi P. N.

Journal of Mechanical and Energy Engineering

2021

Vol. 5, No 1

47--52

Cutting fluids are used during metal cutting process to minimize the heat that is developed between tool, work piece and the chip. A good cutting fluid should absorb maximum heat from the machining zone. Heat absorption capacity of any cutting fluid used is measured by specific heat. Higher the specific heat better will the heat absorption capacity. This paper discusses a simple experimental procedure that is used to measure the specific heat of Neem oil, Honge (Karanja), Sunflower oil and Petroleum based oil (Hydro 68). This experiment is a function of temperature with respect to time. The rise in temperature with respect to time will determine the heat absorption capacity of fluids or oils or liquids. This method is validated by measuring the Specific heat of distilled water, the standard specific heat value of distilled water is 4.4 J/g/°C and measured value from the experiment is 4.5 J/g/°C. The results obtained are similar to the results observed by using other methods like TGA and DSC instruments. From the experiment the Specific Heat of Neem measured is 4.1032 J/g/°C which is high compared to Honge oil with the value of 2.3630 J/g/°C and Sunflower oil with 2.4311 J/g/°C, but less compared to hydro68 with value measured as 7.4850 J/g/°C.