Frontiers Journal of Renewable energy

The Issue Of Calculating The Cavitation Number For Different Conditions Of A Mixture Of Edible Waste Oil And Methanol

Keywords : Cavitation Number, Waste Edible Oil, Biodiesel


The vapor pressure and density of the oil were calculated from its fatty acid composition. Vapor pressure was also obtained for the chemical mixture to obtain biodiesel, that is, for waste edible oil (WEO); methanol (CH3OH) and potassium hydroxide KOH. The molar ratio to be used between WEO and methanol was 1:6, at temperatures of 25, 40, 50 and 60° C. The data of the vapor pressure of the oil and the mixture is extremely important for calculating the cavitation number. Analyzing the bibliography regarding hydrodynamic cavitation, it is defined how the cavitation number is calculated, but few articles mention the vapor pressure of your oil or your working mixture. In this work it was defined as calculating the cavitation number according to Rajoriya et al. (2017) and a methodology is proposed for calculating the vapor pressure of the oil and the mixture. From different applications of parameters, such as defining the pipe diameter, the diameter of the orifice plate, an operating pressure and a mass flow, the design of a test bench of a hydrodynamic cavitation system for the production of biodiesel