Quantification of radiative attenuation provided by fire hose nozzles

Summary The aim of this study is to investigate the radiative protection provided by various fire hose nozzles used by several Fire Rescue Services in France and to propose an experimental set‐up to quantify it. This study combined the use of radiative sources (a radiant panel or a fire inside a sta...

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Bibliographic Details
Published in:	Fire and materials Vol. 46; no. 7; pp. 1034 - 1044
Main Authors:	Collin, Anthony, Suzanne, Mathieu, Testa, Fabian, Doelsch, Pascal, Acem, Zoubir, Thiry‐Muller, Aurélien, Zeinali, Davood, Erez, Giacomo, Moriau, Yannick, Hardy, Louis, Mehaddi, Rabah, Parent, Gilles, Boulet, Pascal
Format:	Journal Article
Language:	English
Published:	Bognor Regis Wiley Subscription Services, Inc 01-11-2022 Wiley-Blackwell
Subjects:	Attenuation Droplets Engineering Sciences Firefighters firefighting Flow rates Flow velocity nozzle Nozzles radiative attenuation Reactive fluid environment Rescue services Sprays Temperature effects thermal protection Water sprays
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Summary:	Summary The aim of this study is to investigate the radiative protection provided by various fire hose nozzles used by several Fire Rescue Services in France and to propose an experimental set‐up to quantify it. This study combined the use of radiative sources (a radiant panel or a fire inside a standard shipping container) and metrological devices (radiative heat sensors, IR camera and spectrometer) to estimate the radiative attenuation of water sprays used to protect the firefighters against thermal effects which occur during a fire. For all the fire hose nozzles tested in this work, the maximal effective attenuation reaches 75%. For most of them, an increase of the flow rate improves the radiative attenuation. However, this study shows that a similar attenuation can be reached for different flow rates, suggesting that the droplet size diameter and the droplet volume fraction also play a significant role in the efficiency of the provided spray.
ISSN:	0308-0501 1099-1018
DOI:	10.1002/fam.3051