Reason Mag Q1 2014 Seite 26

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suppression scenario at full scale The large scale test was run and the results compared with the model output The model produced remarkably similar results Bringing this modeling tool to re protection was very challenging Dorofeev said There are so many different aspects to it It was extremely complex FireFOAM is continuing to be improved and may never truly be n ished In many ways the research has only just begun The re characteristics of the commodities stored have not been fully addressed There are thousands of materials being stored in a multitude of ways all over the world making it important to classify them into a nite number of standard com modities with the corrugated cardboard box being one of the most dominant forms of storage We ve only started with the standard cardboard box we haven t put anything in the box yet explains Chaos the ammabil ity team leader We know that most res of cartoned materials are initially driven by the cartons themselves So it s very important that we understand re growth with card board so that activation of the rst sprinklers can be predicted But the contents of the boxes will eventually become fuel for the re so that is a very important piece as well We are cur rently working to add content to the boxes that represents our standard plastic com modity and try to understand that Another effort moving forward will be to enhance the current model re ning the calculations and getting the model results even closer to those of the large scale tests The team will also be looking to develop new models and apply the current model ing software to re research now being done The applications of the current model include in rack sprinkler protection roll paper data center protection and the rack storage of complex commodities The in rack sprinkler project is already under way Small scale tests are being conducted to understand in rack sprinkler characteristics and medium scale tests are ongoing to determine the water den sity needed to suppress the re Modeling is used to develop the optimum projection concept including sprinkler type their locations and the water pressure needed Large scale testing will then be conducted to validate the protection concept The results will ultimately help create the data sheets that will drive the recommendations FM Global makes to its clients Having an ef cient model at hand changes the paradigm of re protection design which is currently based on multiple large scale re tests The new test model validation paradigm is based on smaller and smarter tests modeling to optimize protec tion and limited large scale validation Mod eling can help us get closer to the answers Dorofeev concludes We know that most fires of cartoned materials are initially driven by the cartons themselves So it s very important that we understand fire growth with cardboard so that activation of the first sprinklers can be predicted Dr Marcos Chaos TECHNICAL TEAM LEADER REPORT RESTORE RELAX Impairment reporting just got easier RED eTAG provides a flexible online alternative to our printed Red Tag Permit Available in six languages Learn more at fmglobal com redetag theSCIENCE