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A Small-Scale Study on the Time Taken For Burning Fuel to Boilover

Nurkunasegran, Nurkunasegri Devi (2013) A Small-Scale Study on the Time Taken For Burning Fuel to Boilover. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

This study is about the boilover process that happens in tanks containing fuels like crude oil. The boilover process can take place during a fire in an open tank containing crude oil or other types of fuel consisting of a wide range of boiling points. Oil products are flammable and possess a threat for tank fires to occur. When crude oil burns, there is a potential of frothing or boilover to happen where the volume of the expelled product is many times that of the oil in the tank. The burning oil may flow over and set adjoining tanks on fire and may destroy anything in its path. Burning fuel form descending heat waves that progresses downward and upon reaching the bottom of the tank, as it comes in contact with the layer of water or water-in-oil emulsion, it gives a rise to an explosive vaporization of the water. This is usually referred to as boilover by “hot zone formation”, a zone of practically uniform temperature and composition that propagates through the interior of the fuel. The investigation of the boilover process have been mostly based on large-scale experiments and thus the analysis made has to incorporate many conditions and variables and this further complicates the study and it makes it harder to control the experiment. In addition to that, the risks and cost involved in fabricating a boilover at a large scale are very high. Therefore, for the purpose of this study, the experiment was performed in a smaller scale to enable better facilitation of the experiment and to determine the feasibility of the study on a small scale. From the experiments it was deduced that the time to boilover increased as the thickness of the fuel layer increased, forming a linear relationship. It was concluded that a small scale boilover study is appropriate to study the mechanism and the characteristic of the phenomenon however; it is not the best option when accuracy of the values are crucial.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Reactor Technology
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 09 Oct 2013 11:07
Last Modified: 09 Oct 2013 11:07
URI: http://utpedia.utp.edu.my/id/eprint/8486

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