Effects of storage height on critical delivered flux of representative fuels

Publication date: Available online 10 April 2017
Source:Fire Safety Journal
Author(s): Yibing Xin
Fire suppression experiments were conducted to determine the critical delivered fluxes (CDFs) of representative fuels. The objective was to evaluate the CDF-based commodity classification for sprinkler protection purposes with emphasis on the effects of storage height. The experiments were carried out in 2- and 5-tier double-row, rack storage configurations, which, together with previous 3-tier work, provide a complete set of CDF measurements at different storage heights. The experimental results show that the 5-tier CDFs correlate well with full-scale sprinkler testing experiences. The comparison of CDFs also reveals the storage height effects for different fuels: the CDF values scale linearly for the cartoned commodities, while nonlinearities are observed for the uncartoned plastic commodities. Based on these results, a commodity classification method is proposed to assess solid combustible materials in the real world with separate treatment of cartoned and uncartoned fuels.



http://ift.tt/2ojBeg0