TRANSPORT OF TOXIC PRODUCTS – COMPARISON OF EXPERIMENTAL AND NUMERICAL RESULTS PART ONE: NON-SPRINKLERED SCENARIOS

摘要

Full-scale experiments were conducted in a modified UL1626 fire test room with an attachedL-shaped corridor in order to investigate the transport of toxic products. A variety of instrumentationwas positioned throughout the compartments to collect data on tenability conditions remote from thefire source as well as in the room of origin. A shielded propane burner was used in conjunction withan approach of seeding a known amount of carbon monoxide into the convective plume. Thispermitted the experiments to focus on the buoyant transport of toxic products, rather than theproduction of such species. Using experimental data from these tests, the ability of ComputationalFluid Dynamics programs to simulate species transport in a non-sprinklered fire was assessed in orderto build a foundation for future investigation of sprinklered fire scenarios. This paper discusses theobjectives of this research effort, details of the experimental program, development of the numericalsimulations, initial experimental and numerical results comparisons, and suggested future work. Ingeneral, considering the assumptions and simplifications used to develop the models, theexperimentally observed CO transport, mixing, and diffusive phenomena were well resolved by FDS.The FLUENT results were not as robust, and while it suggested the ability to reproduce the expectedphysical trends, several key areas where the simulation setup could improve were identified for futurework.