Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/92424
Title: | Fire risk of dripping flame : piloted ignition and soaking effect | Authors: | Sun, P Jia, Y Zhang, X Huang, X |
Issue Date: | Jun-2021 | Source: | Fire safety journal, June 2021, v. 122, 103360 | Abstract: | The dripping of thermoplastic fuels is a significant fire hazard, but the complex dripping-ignition process is still not fully understood. In this work, we investigate the ignition capability of continual polyethylene drips with the size of 2.6–4.6 mg and the frequency of 0.3–1 Hz. These flaming drips land on four groups of materials, cardstock papers (>0.1 mm), thin papers (≤0.1 mm), cotton, and porous mineral materials. For igniting cardstock papers, the minimum drip number decreases with the drip size and frequency, and the ignition time follows the piloted-ignition theory. The thin permeable paper and cotton are soaked by drips, so ignition only requires a small and fixed number of drips. The soaking effect also helps anchor the flame on drips absorbed by other porous mineral materials, showing a notable fire risk. Theoretical analysis of the ignition limit and delay time is proposed to identify the boundary between the piloted dripping ignition and the flame anchored on drip-soaked material. This research reveals different ignition mechanisms of dripping fire and helps understand the fire hazard regarding the transport and soaking effect of molten fuels. | Keywords: | Anchored flame Ignition limit Molten plastics Polyethylene drip Porous fuel Soaked material |
Publisher: | Elsevier | Journal: | Fire safety journal | ISSN: | 0379-7112 | DOI: | 10.1016/j.firesaf.2021.103360 | Rights: | © 2021 Elsevier Ltd. All rights reserved. © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Sun, P., Jia, Y., Zhang, X., & Huang, X. (2021). Fire risk of dripping flame: Piloted ignition and soaking effect. Fire Safety Journal, 122, 103360 is available at https://dx.doi.org/10.1016/j.firesaf.2021.103360. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FSJ_2021_Drip_ignition_soak.pdf | Pre-Published version | 3.07 MB | Adobe PDF | View/Open |
Page views
41
Last Week
0
0
Last month
Citations as of Apr 28, 2024
Downloads
41
Citations as of Apr 28, 2024
SCOPUSTM
Citations
8
Citations as of Apr 26, 2024
WEB OF SCIENCETM
Citations
8
Citations as of May 2, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.