Study on the unsteady combustion characteristics of transformer oil pool fire

Abstract

Abstract:

In order to study the unsteady combustion characteristics of transformer oil, a experimental platform for transformer oil combustion was set up. The influence of oil pool diameter on the unsteady combustion of transformer oil was systematically analyzed, and the influence of different oil pool diameter on combustion rate and flame fluctuation frequency was studied qualitatively and quantitatively. The results show that the combustion process of transformer pool fire can be divided into three stages: initial growth stage, full development stage and attenuation stage. The fully developed stage can be divided into quasi steady combustion stage and boiling combustion stage according to the characteristics of combustion rate. The combustion rate increases with the increase of oil pool diameter. In the quasi steady combustion stage, the flame pulsation frequency is negatively correlated with the oil pool diameter. The larger the oil pool diameter is, the smaller the flame pulsation frequency.

Key words: transformer oil, oil pool fire, unsteady combustion, burning rate

CHEN Qing, JING Wei-wei, WEI Chao, CHEN Peng.

Study on the unsteady combustion characteristics of transformer oil pool fire [J]. Fire Science and Technology, 2021, 40(8): 1114-1117.

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Study on the unsteady combustion characteristics of transformer oil pool fire

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