Abstract:
The purpose of this study was to investigate the emission of gasoline vapor from storage tanks and to evaluate the best model that can be used to predict this emission. Unleaded gasoline with 95 octane number was used in this experiment. In this experimental study, a simulated storage tank was made of glass with 8±0.5 cm in height and 410±15 ml in volume. It had a release vent tube having 0.5 cm inside diameter and variable height from 15, 30 and 45cm. The experimental results showed that the amount of gasoline emission increased with increasing temperature and decreasing vent height. Initial gasoline volume had very little effect on the gasoline emission rate. The model proposed in this work was derived by recognizing that the emission consists of diffusion, liquid expansion and vapor expansion of gasoline. The predictions from the model gave exceptionally