Fire Engineering Research

    • Probabilistic Modelling of Automist in Open Plan Dwellinghouses.pdf
      In carrying out a review of both the performance objectives of suppression systems in dwellinghouses and the Plumis Automist documentation and research to date, sufficient evidence has been found to indicate that the system can typically perform equivalent to or better than the minimum expectations of a domestic sprinkler system conforming to BS 9251:2021. By extension, it therefore appears reasonable to assume that the Plumis Automist system can adequately support any applications which are otherwise in line with guidance expectations.
      Consideration has also been given to more ‘open plan’ designs which deviate from guidance, through a probabilistic computational fire modelling assessment of a series of representative dwellinghouse arrangements. Overall, the inclusion of a Plumis Automist suppression system in a three-storey dwellinghouse arrangement with an open plan stair is shown to produce a design scenario which is no more likely to result in injury or fatality during a fire than an accepted design that follows recognise fire safety guidance, such as ADB [6] or BS 9991:2015 [8]. As such, it appears a reasonable approach for the Plumis Automist system to be adopted as part of a performance-based, fire-engineered solution where a three-storey dwellinghouse arrangement deviates from the guidance recommendations.