Abstract：In order to control refueling emission of gasoline vehicle, the structural feature of tank for gasoline vehicle and the variation characteristics of interfacial area of mass transfer during refueling were analyzed. A new method for predicting refueling emission of gasoline vehicle with irregularshaped tank was presented. The explicit mathematic model of refueling emission, which bases on the timechangedependent diffuse principle of interfacial area of mass transfer and infinitesimal method, was established to suit for gasoline vehicle with irregularshaped tank. Take two different shape of automotive tanks for example, theoretic calculation and experiment results show that the refueling emission model which bases on interfacial area change of mass transfer can be used to predict refueling emission of gasoline vehicle with irregularshaped tank. Due to the interfacial area of mass transfer changes greatly,the diffusion velocity of gasoline vapor molecular is sped up, which leads to the increase of the molar average velocity and the amount of gasoline evaporation, and the refueling emission for gasoline vehicle with irregularshaped tank becomes larger. Compared to the prediction of refueling emission without considering tank shape, the method is more practical and effective.
2011, Vol. 32 
