“…Previous studies have shown that reducing the vent size and increasing congestion, in the form of obstacles in the path of the propagating flame front, can affect flame speeds and result in increased overpressures in vented explosions Bauwens et al, 2010;Bimson et al, 1993;Chan et al, 1983;Fakandu et al, 2013;Hall, Masri, Yaroshchyk, & Ibrahim, 2009;Mercx et al, 1993;Na'inna, Phylaktou, & Andrews, 2013a, 2013bPappas, 1983;Park, Lee, & Green, 2008;Phylaktou & Andrews, 1994;Phylaktou, 1993;Pritchard, Hedley, & Webber, 2002;Solberg, Pappas, & Skramstad, 1980;Taylor & Bimson, 1989;van Wingerden, 1984avan Wingerden, , 1984cvan Wingerden, 1989;van Wingerden & Zeeuwen, 1983a, 1983cZalosh, 1980Zalosh, , 2008.…”