Research of the hydro-mechanical mixer parameters for diesel biofuel production with using box-benghken experiment plan

Abstract

The aim of the work is determination of influence of the mixture temperature, of the frequency of mixer rotation and of the mixing time on the specific energy consumption of the process of diesel biofuel production with using of the laboratory mechanical mixer, determination of influence of the nozzle diameter, of the rate of turn-over of the pump shaft of the mixture delivery and of the angle of inclination of the blades on the rate of turn-over of the hydro-mechanical mixer and on the specific energy consumption during of diesel biofuel production, and also determination of influence of the amount of potassium methylate added to the oil on the diesel biofuel kinematic viscosity and the endurance time of diesel biofuel with air access on the flash temperature of diesel biofuel. The object of research was the laboratory mechanical mixer for determination of the specific energy consumption of the process of diesel biofuel production and pilot sample of the hydro-mechanical mixer for the diesel biofuel production. The subject of research was determination of energy parameters of the process of diesel biofuel production and of diesel biofuel quality parameters. Experimental studies were conducted with using the Box-Benghken plan, which minimizes the dispersion between the experimental data and the value obtained by regression equation. The regression equations to determine the specific energy consumption of the process of diesel biofuel production with using of the laboratory mechanical mixer and to determine the rate of turn-over of the hydro-mechanical mixer and the specific energy consumption of diesel biofuel production with using of the pilot sample of the hydro-mechanical mixer are obtained. The dependence of the influence of the nozzle diameter, the rate of turn-over of the pump shaft of the mixture delivery and the angle of inclination of the blades on the rate of turn-over of the hydro-mechanical mixer is established. The influence of the structural and technological parameters of the hydro-mechanical mixer on the specific energy consumption of diesel biofuel production is determined. The dependencies for determination of influence of the amount of potassium methylate added to the oil on the diesel biofuel kinematic viscosity and the endurance time of diesel biofuel with air access on the flash temperature of diesel biofuel are obtained.