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Experimental study of gas content in a two-phase system of sunflower oil-nitrogen with changes in temperature and flow rates

DOI: 10.17586/1606-4313-2025-24-2-92-101
UDC 536.1; 665.1/.3

Experimental study of gas content in a two-phase system of sunflower oil-nitrogen with changes in temperature and flow rates

Kulpinov Andrey S., Volkov Sergey M., Efimov A.V., Fedorov Alexander V.

For citation: Kulpinov A.S., Volkov S.M., Еfimov А.V., Fedorov A.V. Experimental study of gas content in a two-phase system of sunflower oil-nitrogen with changes in temperature and flow rates. Journal of International Academy of Refrigeration. 2025. No 2. p. 92-101. DOI: 10.17586/1606-4313-2025-24-2-92-101

Abstract
The hydrodynamic characteristics for the technological operation of bubbling vegetable oil with an inert gas were studied in laboratory conditions on a specially made experimental stand. The experiments were carried out at a liquid layer height of 0.8 m in the temperature range of from 20 °C to 120 °C and a specific nitrogen consumption of from 0.073 l/(min·kg) to 1.93 l/(min·kg). A linear dependence of the change in gas content on the specific nitrogen consumption was established. The upper limit value of the specific flow rate of 1.3-1.4 l/(min·kg) was determined to achieve the best gas content of the studied two-phase medium at the temperatures of from 90 °C to 115 °C. The results can be used to create promising equipment in oil and fat production, and also to expand the understanding of the hydrodynamics of gas-liquid systems with viscous liquids.

Keywords: two-phase system, sunflower oil, nitrogen, bubbling.

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