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Fire
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Fire Extinguishing Agent and Application
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Fire Extinguishing Agent and Application

A special issue of Fire (ISSN 2571-6255).

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2754

Special Issue Editors

Dr. Qian Li

E-Mail Website
Guest Editor
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China
Interests: aqueous foam extinguishing agent; compressed air foam extinguishing agent; foam stability; foam extinguishing agent application
Dr. Jin Lin

E-Mail Website
Guest Editor
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China
Interests: fire control; smoke; fire suppressant technology; fire suppressant applications
Dr. Mingjun Xu

E-Mail Website
Guest Editor
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
Interests: fire suppression mechanism of water mist; smoke control; fire dynamics
Special Issues, Collections and Topics in MDPI journals
Dr. Youjie Sheng

E-Mail Website
Guest Editor
College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Interests: fire science and technology; multi-functional material used to fire prevention; firefighting foams; foamed gel
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Efficient and clean fire extinguishing technology has always been the focus and a difficulty in the field of firefighting. From the prohibition of halon extinguishing agents due to ozone layer destruction, to the limited use of fluorinated foam extinguishing agents in recent years due to the persistence and toxicity of their important component, perfluorooctane sulfonate (PFOS), fire extinguishing agents have been developing in the direction of ensuring safety and efficiency while being environmentally friendly. In the field of liquid fire, various new types of foam extinguishing agents to replace PFOS-containing foam extinguishing agents have become a research hotspot. In other, different fire extinguishing applications, the research on ultrafine dry powder, fine water mist, clean gas extinguishing agents, and other research has also ushered in breakthrough progress. We focus on the innovation and effectiveness of these fire extinguishing agents in different applications. Moreover, matching high-efficiency fire extinguishing technologies and equipment are also desirable, such as compressed air foaming technologies, unmanned aerial vehicle fire extinguishers, and so on.

The Special Issue aims to update the latest research progress in and application of fire extinguishing agents, analyze the fire extinguishing mechanisms of different high-efficiency fire extinguishing agents, and promote the development of new high-efficiency and clean fire extinguishing agents for different applications. In addition, papers on efficient fire extinguishing technology and equipment are also desirable. Original research articles and reviews using experiments, theories, and calculation methods are welcome.

We look forward to receiving your contributions.

Dr. Qian Li
Dr. Jin Lin
Dr. Mingjun Xu
Dr. Youjie Sheng
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fire is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fire extinguishing agent
  • fire extinguishing mechanism
  • fire extinguishing technology and equipment
  • fire extinguishing equipment
  • fire extinguishing effectiveness and application
  • compressed air foam system

Published Papers (2 papers)

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Research

15 pages, 6420 KiB  
Article
The Influence of the Heat Transfer Mode on the Stability of Foam Extinguishing Agents
by Xia Zhou, Zhihao An, Ziheng Liu, Hongjie Ha, Yixuan Li and Renming Pan
Fire 2024, 7(4), 137; https://doi.org/10.3390/fire7040137 - 12 Apr 2024
Viewed by 431
Abstract
The mass loss mechanisms of an aqueous film-forming foam (AF foam), an AR/AFFF water-soluble film-forming foam extinguishing agent (AR foam), and a Class A foam extinguishing agent (A foam) at different levels of thermal radiation, thermal convection, and heat conduction intensity were studied. [...] Read more.
The mass loss mechanisms of an aqueous film-forming foam (AF foam), an AR/AFFF water-soluble film-forming foam extinguishing agent (AR foam), and a Class A foam extinguishing agent (A foam) at different levels of thermal radiation, thermal convection, and heat conduction intensity were studied. At a relatively low thermal radiation intensity, the liquid separation rate of the AF, AR, and A foams is related to the properties of the foam itself, such as viscosity and surface/interface tension, which are relatively independent of the external radiation heat flux of the foam. At low radiation intensity (15 kW/m2 and 25 kW/m2), the liquid separation rate of the AF and A foams is relatively stable. When the heat flux intensity is 35 kW/m2, the liquid separation rate of the AF and A foams increases notably, which may be mainly due to the rapid decrease in foam viscosity. And the mass loss behavior is dominated by liquid separation in the AF, AR, and A foams under the influence of thermal radiation and thermal convection. Under the same experimental conditions, the liquid separation rate of AF is the fastest. There is no significant difference in the evaporation rates of the three kinds of foam in the same heat conduction condition. In addition, the AR and A foams usually have a 25% longer liquid separation time (t) under thermal radiation and thermal convection, and the thermal stability is better than AF foam. The temperature reached by the AF foam layer under thermal convection was lower than that of the AR and A foams, and the time for the foam layer to reach the highest temperature under heat conduction was longer than that of the AR and A foams. Full article
(This article belongs to the Special Issue Fire Extinguishing Agent and Application)
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15 pages, 3848 KiB  
Article
Experimental Study on Fire Suppression of the Outdoor Oil-Immersed Transformer by High-Pressure Water Mist System
by Huaitao Song, Haowei Yao, Xiaoge Wei, Hengjie Qin, Youxin Li, Kefeng Lv and Qianlong Chen
Fire 2023, 6(6), 238; https://doi.org/10.3390/fire6060238 - 15 Jun 2023
Viewed by 1723
Abstract
Fire accidents due to oil-immersed transformers seriously threaten the safe operation of power systems. In this paper, the similarity principle was used to design a high-pressure water mist fire-extinguishing test platform for a small-scale transformer fire, and the design method achieved a good [...] Read more.
Fire accidents due to oil-immersed transformers seriously threaten the safe operation of power systems. In this paper, the similarity principle was used to design a high-pressure water mist fire-extinguishing test platform for a small-scale transformer fire, and the design method achieved a good fire extinguishing effect. The results indicate that a deflagration phenomenon, lasting about 2–4 s, could be observed after activating the high-pressure water mist system; the flame temperature rose rapidly at first, then dropped sharply, and finally cooled to the indoor temperature. The nozzle’s flow rate in this system has a significant impact on the fire extinguishing time. Meanwhile, the adjustment of the upper nozzle height also influenced the fire suppression effectiveness of the system, where a height of 1800 mm achieved the best performance compared to the others. In addition, the ambient wind speed is a very unfavorable factor for transformer fire suppression, where the fire extinguishing efficiency decreases rapidly with the increase in wind speed. Therefore, under low wind speed conditions, the high-pressure water mist system has great advantages in the fire suppression of outdoor oil-immersed transformers, and the above research results can provide a reference for the optimization design of this system. Full article
(This article belongs to the Special Issue Fire Extinguishing Agent and Application)
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