Effective factors on the performance of woven wire screens against leaf firebrand attacks

Article

Hashempour, Javad and Sharifian, Ahmad. 2017. "Effective factors on the performance of woven wire screens against leaf firebrand attacks." Journal of Fire Sciences. 35 (4), pp. 303-316. https://doi.org/10.1177/0734904117709203
Article Title

Effective factors on the performance of woven wire screens against leaf firebrand attacks

ERA Journal ID4924
Article CategoryArticle
AuthorsHashempour, Javad (Author) and Sharifian, Ahmad (Author)
Journal TitleJournal of Fire Sciences
Journal Citation35 (4), pp. 303-316
Number of Pages14
Year2017
Place of PublicationUnited Kingdom
ISSN0734-9041
1530-8049
Digital Object Identifier (DOI)https://doi.org/10.1177/0734904117709203
Web Address (URL)http://journals.sagepub.com/doi/abs/10.1177/0734904117709203
Abstract

Firebrand spotting is the dominant wildfire propagation mechanism. The use of wire screens to prevent firebrand entry into structures is recommended or mandated by many standards. The existing standards address only one feature of screens which is opening size. This experimental study aims to explore several other factors that may influence the performance of wire screens and may need to be incorporated in codes and standards development process for structures located in wildfire prone areas. The results demonstrate a previously unreported shattering mechanism in the case of Eucalyptus populnea (from the Myrtle family) leaf firebrands under a moderate wind speed of 14.5 m/s. The results also show that screen porosity, screen type and wind speed would be appropriate to be addressed in developing standards, but there is no need for concern about screen orientation as long as the screen is placed perpendicular to the wind direction during the experiment.

Keywordswire screen; firebrand shower; wildland fire; WUI; building standard; eucalyptus firebrand
ANZSRC Field of Research 2020410402. Environmental assessment and monitoring
401799. Mechanical engineering not elsewhere classified
410499. Environmental management not elsewhere classified
300706. Forestry fire management
Byline AffiliationsWorcester Polytechnic Institute, United States
Faculty of Health, Engineering and Sciences
Institution of OriginUniversity of Southern Queensland
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