Abstract
This paper presents the research results of jet mixing and heating processes of crude oil of the Zachebashskoe field (Republic of Tatarstan) and fuel oil M100 in a tank with a capacity of 2000 m3. Circulation systems with nozzle inclination in the range from -25° up to 125° are considered. The presence and washing out of bottom sediments in the tank are modeled. The time required for removing the bottom sediments and for heating the tank to the optimum temperature is determined. The best heating for the tank with oil and fuel oil was observed at the nozzle inclination in the range from -25° up to 60°. The optimal nozzle inclination was 115° for washing out the bottom sediments in the oil tank. To remove sediment in a tank with fuel oil it is recommended to use the same nozzle inclinations as for heating.
Highlights
Bottom sediments are formed when storing oil and oil products in tanks
Paper [3] notes that in China, the heating mode of tanks for crude oil by spraying the hot oil through nozzles is widely used in recent years
The aim of this work is a numerical study of jet mixing and heating processes in a high capacity tank
Summary
Bottom sediments are formed when storing oil and oil products in tanks. Their presence leads to a decrease in tank capacity, accelerates corrosion processes, increases the time of technological operations, blocks the discharge lines of tanks, and has a toxic influence on maintenance staff [1]. A pump and nozzle are needed to organize the circulation mixing. Installation of such a mixing system is simple [4]. It is necessary to increase the jet velocity only by 20 % to completely remove sediment in the oil tank [6]
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