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Fire
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Heat Transfer in Fire
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Heat Transfer in Fire

A special issue of Fire (ISSN 2571-6255). This special issue belongs to the section "Mathematical Modelling and Numerical Simulation of Combustion and Fire".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 5445

Special Issue Editors

Prof. Dr. Ulf Wickstrøm

E-Mail Website
Guest Editor
Department of Civil, Environmental and Natural Resources Engineering, Luleå tekniska Universitet, Lulea, Sweden
Interests: steel structures; heat transfer; finite element analysis; structural engineering; fire safety engineering; fire; concrete structures; testing; temperature calculation
Prof. Dr. Tomaž Hozjan

E-Mail Website
Guest Editor
Faculty of Civil and Gedoetic Engineering, University of Ljubljana,1000 Ljubljana, Slovenia
Interests: structural timber; wood mechanics; fire resistance of timber structures; fire safety
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Heat transfer and temperature analysis are core issues in fire safety engineering. It is temperature that governs the process of deterioration of materials, i.e., when combustible materials start to give off combustible fumes and ignite, as well as when structural materials loose strength and loadbearing capacities. Therefore, sound knowledge heat transfer and temperature analysis are crucial for the understanding of fire dynamics and fire phenomena such as ignition and fire spread, as well as analysis of the loadbearing capacity of structures exposed to fire.

This Special Issue aims at elucidating heat transfer in a wide range of fire scenarios involving various kinds of materials. Articles related to building fires as well as wildfires are welcome. Reports on testing experiences, as well as developments of calculation methods, are of interest. Measuring techniques suitable for harsh fire exposure and the use of data thereof for estimation of exposed body temperature are appreciated. Papers on obtaining and using material data as input to temperature calculations are welcome.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Ignition properties of materials;
  • Measurements of thermal exposure from bushfires;
  • Influence of water content on ignition of wood;
  • Boundary conditions of fire exposed structures.

I look forward to receiving your contributions.

Prof. Dr. Ulf Wickstrøm
Prof. Dr. Tomaž Hozjan
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

  • temperature calculation techniques
  • thermal material properties
  • measurements of thermal exposure conditions
  • thermal exposure of bushfires
  • ignition properties

Published Papers (3 papers)

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Research

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20 pages, 5791 KiB  
Article
Thermal Management of Electronics to Avoid Fire Using Different Air Flow Strategies
by Saad Saeed, Abid Hussain, Imran Ali, Hanzla Shahid and Hafiz Muhammad Ali
Fire 2023, 6(3), 87; https://doi.org/10.3390/fire6030087 - 24 Feb 2023
Cited by 1 | Viewed by 1317
Abstract
Due to high heat generation within closely packed smart electronic devices, some efficient thermal management systems are required for their reliable performance, avoid overheating, long lifecycle and safety. In this study, a novel thermal management system based on forced air cooling having three [...] Read more.
Due to high heat generation within closely packed smart electronic devices, some efficient thermal management systems are required for their reliable performance, avoid overheating, long lifecycle and safety. In this study, a novel thermal management system based on forced air cooling having three airflow configurations is developed to explore the thermal characteristics of each configuration. A customized cavity is designed to have provision for three airflow configurations (axial, cross, and reverse flow) and temperature profiles are investigated within the cavity for each configuration. The experiments are performed at three heat generation rates, i.e., 10 W, 20 W, and 30 W to analyze the cooling effectiveness at a variable heat generation rate. It was observed that the maximum temperature within the setup increases with the increase in heat generation rate. In axial flow air configuration, cavity temperature has been reduced remarkably by 69 and 82.4% at 10 W and 30 W, respectively. Second to axial flow, cross flow configuration performs better than reverse flow and an overall 65.7~78.6% temperature drop is obtained compared with enclosed cavity from 10 W to 30 W, respectively. Furthermore, a similar cooling rate trend in the cavity is obtained for an increased heat generation rate in the cavity. Full article
(This article belongs to the Special Issue Heat Transfer in Fire)
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19 pages, 9920 KiB  
Article
Louvered Fin-and-Flat Tube Compact Heat Exchanger under Ultrasonic Excitation
by Amin Amiri Delouei, Hasan Sajjadi, Meysam Atashafrooz, Mohammad Hesari, Mohamed Bechir Ben Hamida and Ahmad Arabkoohsar
Fire 2023, 6(1), 13; https://doi.org/10.3390/fire6010013 - 31 Dec 2022
Cited by 26 | Viewed by 2293
Abstract
Utilizing ultrasonic excitation as an active method for studying the rate of heat transfer has gained considerable attention recently. The present study investigated the effects of ultrasonic excitation on the heat transfer rate in a fin-and-flat tube heat exchanger experimentally. The performance of [...] Read more.
Utilizing ultrasonic excitation as an active method for studying the rate of heat transfer has gained considerable attention recently. The present study investigated the effects of ultrasonic excitation on the heat transfer rate in a fin-and-flat tube heat exchanger experimentally. The performance of the heat exchanger was investigated with and without the presence of ultrasonic excitation. A comprehensive parameter study was attempted, so several parameters, including ambient temperature, flow rate, air passing velocity, Reynolds number, and Nusselt number, were studied in a relatively wide range. An adequate uncertainty test, as well as a validation assessment, is provided to certify the credibility of the obtained results and the hired facility. The results revealed that reducing the flow rate, ambient temperature, and air passing velocity on the heat exchanger increased the ultrasonic excitation’s effects. The highest heat transfer enhancement in the present experiment was 70.11%, measured at the lowest air passing velocity and ambient temperature with a Reynolds number 2166. The data presented in this paper will be useful for the optimal design of ultrasonic vibrating fin-and-tube heat exchangers. Full article
(This article belongs to the Special Issue Heat Transfer in Fire)
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Review

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19 pages, 1836 KiB  
Review
Meta-Narrative Review of Artificial Intelligence Applications in Fire Engineering with Special Focus on Heat Transfer through Building Elements
by Iasonas Bakas and Karolos J. Kontoleon
Fire 2023, 6(7), 261; https://doi.org/10.3390/fire6070261 - 02 Jul 2023
Viewed by 1107
Abstract
Artificial intelligence (AI), as a research and analysis method, has recently been gaining ground in the ever-evolving scientific field of fire engineering in buildings. Despite the initial delay in utilising machine learning and neural networks due to the shortfall of available computational power, [...] Read more.
Artificial intelligence (AI), as a research and analysis method, has recently been gaining ground in the ever-evolving scientific field of fire engineering in buildings. Despite the initial delay in utilising machine learning and neural networks due to the shortfall of available computational power, a review of cutting-edge scientific research demonstrates that scientists are now exploring and routinely incorporating such systems in their research processes. As such, a considerable volume of new research is being produced comprising applications of AI in fire engineering. These findings and research questions ought to be summarised, organised, and made accessible for further investigation and refinement. The present study aims to identify recent scientific publications relating to artificial intelligence applications in fire engineering, with particular focus on those tackling the issue of heat transfer through building elements. The method of the meta-narrative review, as implemented in the field of medical advancement research, is discussed, adapted, and finally utilised to weave a narrative that enables the reader to follow the most recent, influential, and impactful works. Efforts are made to uncover trends in the search for heat transfer models and properties under fire loading using AI. The review concludes with our thoughts on how future research can enrich the current findings on heat transfer in buildings exposed to fire actions and elevated temperatures. Full article
(This article belongs to the Special Issue Heat Transfer in Fire)
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