Importance of the slick thickness for effective in-situ burning of crude oil
| Autor: | Grunde Jomaas, Martin X. Sørensen, Ali S. Rangwala, Nicholas L. Brogaard, Laurens van Gelderen, Janne Fritt-Rasmussen |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
In situ
chemistry.chemical_classification In-situ burning Petroleum engineering Dodecane General Physics and Astronomy Boilover General Chemistry Burning efficiency Crude oil Pulp and paper industry Oil slick thickness chemistry.chemical_compound Hydrocarbon chemistry Environmental science General Materials Science Safety Risk Reliability and Quality Mass loss Loss rate Flammability Octane |
| Zdroj: | van Gelderen, L, Brogaard, N L, Sørensen, M X, Fritt-Rasmussen, J, Rangwala, A S & Jomaas, G 2015, ' Importance of the slick thickness for effective in-situ burning of crude oil ', Fire Safety Journal, vol. 78, pp. 1-9 . https://doi.org/10.1016/j.firesaf.2015.07.005 |
| DOI: | 10.1016/j.firesaf.2015.07.005 |
| Popis: | In order to improve the potential of in-situ burning (ISB), the importance of the oil slick thickness on two pure oils ( n -octane and dodecane) and two fresh crude oils (Grane and REBCO) was studied in relation to the regression rate, boilover tendency, mass loss rate, burning efficiency and flame height. The experiments were performed in a new experimental apparatus, the Crude Oil Flammability Apparatus (COFA), which has been developed to study ISB of oil on water in a controlled laboratory environment with large water-to-oil ratios. The regression rate, average mass loss rate and burning efficiency reached a constant maximum value for all oils at slick thicknesses exceeding 10–20 mm. For thinner initial slick thicknesses, these values were greatly reduced, most likely due to heat losses to the water. A further increase in the initial slick thickness could not improve the burning efficiency above 75% for the crude oils, showing that it only has a limited effect on the burning efficiency as higher burning efficiencies have been reported for larger scales. Furthermore, the results showed that the burning mechanisms differ for pure and crude oil, indicating that the hydrocarbon mixture in crude oils changes as the burning progresses. This observation merits further research. |
| Databáze: | OpenAIRE |
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