Changes in evaporation rate and vapor pressure of gasoline with progress of evaporation

Failure Analysis and Prevention of Fires and Explosions with Plastic Gasoline Containers

“…These data are quite similar to data published recently by the Japanese researchers in the Fire Safety Journal [15]. They are also demonstrative of the light ends of the gasoline blend evaporating significantly more quickly than the heavier ends, and the associated headspace hydrocarbon vapor pressure and volumetric percent hydrocarbon dropping over time.…”

“…In large part, this is because-even at a specific octane rating-gasoline blends sold vary both seasonally and regionally in terms of the specific hydrocarbon types they contain as well as included additives. However, ''weathering'' of gasoline as well as diesel blends has been the subject of articles in the fire science and combustion science literature recently [15,16]. These ''weathering''/aging processes are a function of gasoline's tendency to evaporate when exposed to ambient conditions such as when a PPGC is left open.…”

Investigation of gasoline distributions within petrol stations: spatial and seasonal concentrations, sources, mitigation measures, and occupationally exposed symptoms

“…Another factor affecting the elevated concentrations in the summer also includes high ambient temperature. The temperature recorded in summer was roughly 3-4°C higher than the other two seasons; an increase in the temperature from 30 to 35°C caused an increase in vapor pressure of regular gasoline by~15 % (Okamoto et al 2009). Table 3 also indicates the statically different concentrations between the sampling campaigns of the cool and rainy seasons for Surin and Roi-et Stations.…”

Evaporation characteristics of multi-component liquid

“…Thus, the release of vapor from liquid fuel presents a serious risk. When motor gasoline is spilt deliberately in an enclosed area for the purpose of arson or leaked out extensively by accident, attention must be paid to a risk caused not only by the spilt gasoline but also by the released vapor (Okamoto, Watanabe, Hagimoto, Miwa, & Ohtani, 2009). It is important to predict the amount of released vapor accurately and estimate its concentration in the enclosed area for assessing the risk and making the safety measure against hydrocarbon spill incidents (Lee, 2002).…”