Experimental Study of Burning Behavior of N-heptane in Ice Cavities with Cross Air Flow ...

• Main Authors: Zhong, X., Hu, L., Wang, X., Yuen, K., Chen, Y., Zhang, X., Kuang, C., International Seminar On Fire And Explosion Hazards 9; 2019; Saint Petersburg, Russia
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Санкт-Петербургский Ð¿Ð¾Ð»Ð¸Ñ‚ÐµÑ Ð½Ð¸Ñ‡ÐµÑÐºÐ¸Ð¹ университет Петра Великого 2019
• Subjects: Arctic
• Online Access: https://dx.doi.org/10.18720/spbpu/2/k19-23; http://elib.spbstu.ru/dl/2/k19-23.pdf

In situ burning (ISB) in the Arctic waters is a practical countermeasure to oil spill incidents, during which special ice cavity pool fires are naturally formed. However, most previous studies have focused on the burning of these fires in a quiescent environment. For the first time, the effect of cross air flow on burning behavior of ice cavity pool fires was experimentally revealed in the present study. Experiments were conducted by employing ice cavities of different depths (4, 6, and 8 cm) with the same diameter of 5 cm for various cross flow air speeds (0~1.5 m/s). It was found that the cross flow can significantly change the average mass loss rate (total burned mass over time). Three phases are identified in terms of the transient mass loss rate to characterize the burning behavior of n-heptane fuel: first, a slight decrease, then a continuous increase to reach a peak value and finally a rapid decrease until extinction. This behavior is different from that of the burning of pool fires in ice cavities in ...