Generation and Evaluation of Surrogate to Design Fuel Supply System

Abstract

To design a fuel supply system, some properties of real gasoline as fuel are needed. However, real gasoline is a mixture which has more than two hundreds of components. It is not rational to identify all the components. In this study, a surrogate is generated to be available in a simulator. It was made by limiting to the ingredients frequently used for real gasoline. The composition of the surrogate was decided by the characteristics evaporation of real gasoline using the process simulator HYSYS. The evaporation characteristics, the Reid vapor pressure, density and kinetic viscosity are target properties in this study. The target properties of the surrogate were estimated and evaluated. The evaporation characteristics were estimated by the flow diagram of multi-stage flash distillation in the HYSYS. The generated surrogate consisted of five components. The surrogate include dangerous, volatile, environment-tally hazardous and flammable components. Therefore, the surrogate will be used by computer simulation and not be used by experiments. The evaporation characteristics of the surrogate were compared with those of real gasoline. The characteristics were well represented up to 120 ℃. The target fuel system of this study will not become more than 100 ℃, so the estimation results have enough accuracy. Furthermore, density and kinetic viscosity of the surrogate were close to those of real gasoline.