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Showing 1 to 20 of 22 for “"Cone Calorimeter"”.
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Modeling full-scale fire test behaviour of polyurethane foams using cone calorimeter data
… specimens, based on information obtained from cone calorimeter tests. Full-scale fire tests of 10 cm thick polyurethane foams of different sizes were conducted using center and edge-ignition locations. Flame spread and heat release rates were compared. For specimens of the same size, …
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Formulation and Burning Behaviour of Fire Retardant Polyisoprene Rubbers
… rate method, Limiting Oxygen Index (LOI) and the cone calorimeter. Basic rubber mixtures were prepared to investigate the interactions between the polymer and additives, under TGA conditions. Zinc oxide was found to have little effect on the polymer decomposition, while silica reduced thermal …
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Investigation of the Fire Behaviour of PEEK-based Polymers and Compounds
… have been utilised to examine PEEK such as the Cone Calorimeter (ISO 5660), UL-94 (EN 60695-10-11), Limiting Oxygen Index (LOI), Thermogravimetric Analysis (TGA) in both air and inert atmospheres and the Small Flame Ignitability Test (ISO 11925). PEEK decomposition has been investigated using …
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Effects of Wool Fibres on Mechanical and Flammability Characteristics of Wool-Polypropylene Composites
… confirmed by flammability tests. In particular, cone calorimeter and vertical burn tests have exhibited a significant decrease in peak heat release rate (PHRR) and a direct flame self-extinguishment of composites, respectively. Furthermore, the cone calorimeter experiments and char morphology …
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Development of a Model for Flaming Combustion of Double-Wall Corrugated Cardboard
… determined through analysis of data collected in cone calorimeter tests conducted with incident heat fluxes in the range 20-80 kW/m2. An apparent pyrolysis reaction mechanism and thermodynamic properties for the material were obtained using thermogravimetric analysis (TGA) and differential …
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Fire protection of surface coatings
… and their burning behaviour using the cone calorimeter (ISO 5660). Novel screening test methods also include a test adapted from BS EN 367 for measurement of thermal conductivity, a thermocouple embedded in cone samples to assess the temperature profile at the substrate-coating …
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Quantification of the Fire Thermal Boundary Condition
… heat flux. Experiments were performed in a cone calorimeter with the hybrid gage flush mounted into UNIFRAX Duraboard LD ceramic board. The results were then compared to results obtained with a Schmidt-Boelter gage and a plate thermometer. The hybrid heat flux gage predicted a cold surface …
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Aplicação de métodos experimentais alternativos para avaliação da retardância à chama em madeiras
… -12 and IEC 60695-2-13, and the mass loss cone calorimeter (MLCC) test, in accordance with ASTM E2102-08. The results demonstrated that the surface application of the flame retardant did not significantly reduce the peak of heat release rate and the total heat released from the tested …
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Inorganic/organic hybrid polymers
… compared with pure poly(methymethacrylate) in a cone calorimeter to study their thermal properties. No significant enhancement to the thermal stability of the polymers was observed when the silica was incorporated. Analysis of the co-polymer latexes were inconclusive, in the case of the products …
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Controlling Object Heat Release Rate using Geometrical Features
… powder using additive manufacturing processes. A cone calorimeter using oxygen calorimetry was used to measure the heat release rate of the crib specimens. Within the flow limited burning regime, the burning rate of an object is proportional to the porosity factor. Porosity factors calculated from …
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Quantifying Burning, Heat Transfer, and Material Ignition of Smoldering Firebrand Piles
… of pile height, porosity, and wind speed. Cone calorimeter data was used to generate material thermal and ignition properties. With these inputs, the framework was used to predict the potential for material ignition thus circumventing the need for costly firebrand tests. This collection of …
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Bench Scale Characterization of Joints and Coatings
… thickness and final expanded thickness through cone calorimeter tests and integrated it into a modified scaling methodology. This approach was then validated through fire exposure tests in furnace on wood samples painted with intumescent coating at full, half, and quarter scales. Finally, we …
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Application of computational fluid dynamics techniques to the analysis of building fires
… and reproducing results of experiments in the cone calorimeter and in a steel shipping container. Numerical predictions are analysed and the conclusions about adaptability of the software for modelling fire-related processes are made. CFD techniques are applied both to assess possible CFD …
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Flammability and durability of bamboo fabric reinforced polypropylene composites and their hybrids
… hybrid composites. Flammability tests using a cone calorimeter showed that the hybrid composites performed better than the glass polypropylene (GPP) composites, exhibiting a reduction of at least 30% in heat release rate and smoke release as well as taking longer to ignite. Fire resistance was …
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A Computational Fluid Dynamics Model to Simulate Wood Combustion
… combustion model was validated against mesoscale cone calorimeter experiments with different sample sizes. The validated wood combustion model was implemented in a top-lit updraft (TLUD) wood stove being designed by the University of Alabama (UA). The TLUD wood stove simulations were validated …
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Decomposition and Fire Retardancy of Naturally Occurring Mixtures of Huntite and Hydromagnesite.
… carbon dioxide in two stages. The use of the cone calorimeter to study the rate of heat release during combustion of ethylene vinyl acetate based polymer compounds has lead to an understanding of how both huntite and hydromagnesite affect the burning processes at different stages of the fire. …
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Development of Instrumental and Computational tools for investigation of polymer flammability
… and utilization of the microscale combustion calorimeter (MCC) and how it helps us understand the flammability of materials. A reproducible way to quantitatively assess material flammability was needed. The simplest approach is based on the molecular structure of a material to determine which …
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Development of fire retardant timber treatments
… using microscale combustion calorimetry and cone calorimetry. Residue analysis has been carried out using scanning electron microscopy coupled with electron dispersive x-ray analysis. Existing fire retardant timber treatments were applied to timber specimens. All three treatments operated in …
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Innovative, Platy Nano-Additives as Efficient Flame Retardants for Polymer Nanocomposites
… the particle size distributions (PSDs). The cone calorimeter results highlighted the importance of the aspect ratio and the interlayer anion of LDHs on flame retardancy. This was confirmed by large reductions of peak heat release rates (PHRR). Moreover, synergisms of combined systems of FRs …
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Factors Affecting Heat Transfer from Firebrands and Firebrand Piles and the Ignition of Building Materials
… by testing on select building materials in a cone calorimeter. The model predicted the surface temperature rise of the material due to an exposure heat flux with ignition being predicted when the surface temperature exceeded the ignition temperature of the material. The model was used to …
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