In order to select the surrogate fuel with the same physical and chemical properties as RP-3 kerosene

the physical and chemical properties of RP3 kerosene were analyzed. According to the physical and chemical properties of RP3 kerosene

the selection criterions of the RP3 kerosene surrogate fuel (including the molecular mass

hydrogencarbon ratio

cetane number and lower heating value) were determined. Based on the selection criterions

a fivecomponent RP-3 kerosene surrogate fuel comprising ndecane

n-dodecane

iso-cetane

methylcyclohexane and toluene was presented

and the mole fractions of these five components were optimized. Furthermore

the densities and kinematic viscosities of the surrogate fuel and RP3 kerosene were contrastively analyzed at different temperatures. The results show that the molecular mass

hydrogencarbon ratio

cetane number and lower heating value of the surrogate fuel

which comprise 14% ndecane/10% ndodecane/30% isocetane/36% methylcyclohexane/10% toluene (mole fraction)

agree well with the corresponding criterions of RP3 kerosene. At the same time

the variation trends of the densities and kinematic viscosities of the surrogate fuel agree well with the corresponding experimental data of RP3 kerosene at different temperatures.