Experimental study of burning behavior of large-scale crude oil fires in ice cavities

Shi, Xiaochuan; Bellino, Peter W.; Simeoni, Albert; Rangwala, Ali S.

doi:10.1016/j.firesaf.2015.11.007

Cited by 28 publications

(8 citation statements)

References 18 publications

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“…In-situ burning (ISB) is an on-site burning of an oil spill that allows the conversion of the oil hydrocarbon components into combustion products such as carbon monoxide, soot, and other gases that are released to the atmosphere (Buist et al, 2013). This technique has been proven to be effective for large oil spills (Bech et al, 1992;Shi et al, 2016). In the Arctic context, ISB was identified as the most effective solution (due to remoteness and ice-infested waters) (Bullock et al, 2019;Fritt-Rasmussen et al, 2012;Shi et al, 2016;Van Gelderen et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Chemical herding of weathered crude oils for in-situ burning

Rojas-Alva

Andersen

Jomaas

2019

Journal of Environmental Management

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Mid-scale ISB experiments were conducted in a large water-basin (20 m 2 x 1 m) in order to assess the applicability of chemical herding of weathered crude oil spills on water in association with in-situ burning (ISB). A silicone-based chemical herding agent, OP-40, was used to confine, or herd, three different crude oils (Siri, Grane and Oseberg blend) at various weathering degrees. The herding agent was capable of obtaining the minimum required oil slick thickness for ignition and subsequent flame spread in most of the experiments, but not for the strongly weathered oils. Also, the herding agent was capable of re-thickening the oil slick after flame extinction. The burning efficiency results indicate that the method can be viable for ISB with herders at a larger scale, and suggest that the burning efficiency scales with the amount of crude oil. Sinking behaviour of residues was also observed and quantified, as such a behaviour can pose a serious environmental threat in real scenarios.

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Section: Introductionmentioning

confidence: 99%

Chemical herding of weathered crude oils for in-situ burning

Rojas-Alva

Andersen

Jomaas

2019

Journal of Environmental Management

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“…Burning efficiency as a function of the fuel amount. Experimental data from several studies[1,5,[21][22][23][24][25][26][27],…”

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confidence: 99%

Pumice stones as potential in-situ burning enhancer

Rojas-Alva

Andersen

Jomaas

2018

Cold Regions Science and Technology

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“…It was shown that burning efficiencies are significantly reduced when 14 burning in cold boundaries. However, larger pools of crude oil in ice (~1m diameter) have been observed to burn as efficient as a similar sizes pools in a metal pan (Shi et al 2016). For spills in brash ice, the contact surface of the oil with ice increases with increasing in the ice content.…”

Section: Implications For Spills In Ice Infested Regionsmentioning

confidence: 99%

“…These convective flows are described to be the main cause for formations of lateral cavity. Previous studies have shown a lateral cavity of ~10 cm length (Shi et al 2016) in a 1m by 1m square pit comprised of icy walls with 20% of fuel mass encapsulation. Potentially, many parameters could change the size of a lateral cavity and these parameters are currently under investigation.…”

Section: Implications For Spills In Ice Infested Regionsmentioning

confidence: 99%

A study on burning behavior and convective flows in Methanol pool fires bound by ice

Farahani

Jomaas²,

Rangwala

2017

International Oil Spill Conference Proceedings

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(ID: 2017-170)An experimental study on methanol pool fires bound by ice was carried to research the burning behavior and flow field (within the liquid-phase) of methanol. The experiments were conducted in two parts: 1-in a cylindrical ice cavity/pan (10.2 cm diameter and 6 cm depth) at three different conditions to analyze burning parameters of methanol, 2-in a square glass tray with outside dimensions of 10 × 10 cm and a depth of 5 cm to obtain flow field of methanol pool with a two-dimensional PIV (Particle Image Velocimetry) system. The results of the experiments of the first part show the cold boundaries of the ice cavity/pan act as a heat sink causing considerable heat losses. Thus, burning rates and burning efficiencies are found to be lower with cold boundaries. However, the burning rate values in ice cavity are found to be the highest because of the melting of the ice and expansion of the cavity. The analysis of the results obtained by the PIV system showed the velocity magnitudes and flow patterns in the liquid-phase of icy methanol fire significantly change over the course of burning. In the instants after ignition a horizontal flow induced by Marangoni near the surface was observed. Later on, mixing of melt-water with methanol and sinking of this mixture caused a cycle in the tray that resulted in a vortex appearing in the middle of the pool. Magnitudes of velocity were also observed to increase after ignition.The increase in the velocity magnitudes is expected to significantly impact the melting and size of the lateral cavity.Keywords: oil spill, ice, in situ burning, melting, convection.

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Experimental study of burning behavior of large-scale crude oil fires in ice cavities

Cited by 28 publications

References 18 publications

Chemical herding of weathered crude oils for in-situ burning

Chemical herding of weathered crude oils for in-situ burning

Pumice stones as potential in-situ burning enhancer

A study on burning behavior and convective flows in Methanol pool fires bound by ice

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