%K Carbon; Combustion; Diesel fuels; Evaporation; Forecasting; Fuel systems; Fuels; Gasoline; Heating; Hysteresis; Quantum theory; Specific heat; Temperature; Thermal conductivity, Discrete modeling; Droplet heating and evaporations; Effective thermal conductivity; Effects of temperature; Hydrocarbon fuel; Model-based OPC; Multicomponent fuel; Multicomponents, Drops
%X The previously suggested quasi-discrete model for heating and evaporation of complex multi-component hydrocarbon fuel droplets is described. The dependence of density, viscosity, heat capacity and thermal conductivity of liquid components on carbon numbers n and temperatures is taken into account. The effects of temperature gradient and quasi-component diffusion inside droplets are taken into account. The analysis is based on the Effective Thermal Conductivity/Effective Diffusivity (ETC/ED) model. This model is applied to the analysis of Diesel and gasoline fuel droplet heating and evaporation. The components with relatively close n are replaced by quasi-components with properties calculated as average properties of the a priori defined groups of actual components. Thus the analysis of the heating and evaporation of droplets consisting of many components is replaced with the analysis of the heating and evaporation of droplets consisting of relatively few quasi-components. It is demonstrated that for Diesel and gasoline fuel droplets the predictions of the model based on five quasi-components are almost indistinguishable from the predictions of the model based on twenty quasi-components for Diesel fuel droplets and are very close to the predictions of the model based on thirteen quasi-components for gasoline fuel droplets. It is recommended that in the cases of both Diesel and gasoline spray combustion modelling, the analysis of droplet heating and evaporation is based on as little as five quasi-components.
%D 2015
%R 10.1088/1742-6596/585/1/012014
%N 1
%O cited By 5; Conference of 6th International Workshop on Multi-Rate Processes and Hysteresis, MURPHYS 2012 ; Conference Date: 21 May 2012 Through 24 May 2012; Conference Code:117712
%L scholars6013
%J Journal of Physics: Conference Series
%T New approaches to the modelling of multi-component fuel droplet heating and evaporation
%I Institute of Physics Publishing
%A S.S. Sazhin
%A A.E. Elwardany
%A M.R. Heikal
%V 585