Pool evaporation is a major source of flammable vapour clouds. Predicting the evaporation rate of a liquid hydrocarbon pool is therefore a key issue of dispersion modelling for safety concerns. This paper presents small- and medium-scale experiments of pool evaporation carried out with liquid hydrocarbons (pentane, heptane), hydrocarbon “gasoline-like” mixtures and gasoline. Liquid mass loss was measured and the evaporation rate deduced with its evolution in time. Other observations are highlighted, regarding the evolution of liquid temperatures, mixture compositions, and scale effects like the influence of pool length on surface evaporation rate. Comparisons with well-known correlations are then shown. The authors finally suggest a new semi-empirical correlation with a set of parameters fitted on the performed experiments.

池蒸发是易燃蒸气云的主要来源。因此，出于安全考虑，预测液态烃池的蒸发速率是分散建模的关键问题。本文介绍了使用液态碳氢化合物（戊烷，庚烷），碳氢化合物“汽油样”混合物和汽油进行池蒸发的中小型实验。测量液体质量损失，并随着时间的推移推断出蒸发速率。关于液体温度，混合物组成和水垢效应（如池长对表面蒸发速率的影响）的演变，突出了其他观察结果。然后显示与众所周知的相关性的比较。作者最后提出了一种新的半经验相关性，其中一组参数适合进行的实验。