fire smoke Articles

  • Smoke Movement in a Compartmental Fire

    Transport of larger smoke particles generated by a fire in a compartment is studied. An atrium fire with three different heat release rates is taken as an example. The air flow pattern and temperature contours are predicted by a fire field (or application of computational fluid dynamics (CFD) model. The paths of smoke particles are modeled by the Lagrangian method coupled with the air movement ...


    By SAGE Publications

  • Tunnel fire smoke modelling for emergency management

    The current paper describes the investigation of parameters related to accidents in tunnels in the framework of the "Advanced Training System for Emergency Management" project, A-TEAM. On this basis, the flow field is investigated within tunnels, and its effects on fire development and smoke concentration fields for these emergency cases are reconstructed. This is achieved with the use ...


    By Inderscience Publishers

  • Experimental Research on the Spatial Distribution of Toxic Gases in the Transport of Fire Smoke

    Current assessment models and experimental tests on gas toxicities in a fire hazard are mainly based on the hypothesis that uniform smoke and gas layers exist in the compartment. This study, through experiments conducted in a reduced-scale compartment—corridor model, examines the assumption and explores the characteristics of spatial distribution of toxic gases in smoke transport from a fire ...


    By SAGE Publications

  • Fire and Smoke Detection System - A must have Component in Aircrafts

    Summary: Fire and Smoke detector system is one of the must have components of aircrafts of any kind. They ensure safety of the passengers by giving indications of any kind of fire burst. Here you find a brief on the significances and the types of life securing fire and smoke detection systems. What are the Significances of Fire Detection Systems? One of ...


  • Experimental and Numerical Studies on Longitudinal Smoke Temperature Distribution Upstream and Downstream from the Fire in a Road Tunnel

    Four full-scale tests are conducted in a real road tunnel, with ceiling jet temperature distributions measured 200 m upstream and downstream from the fire. Two sizes of pool fires, 1.8 and 3.2 MW, with two different fire surface heights, 0.2 and 1.7 m from the floor level, are considered. Longitudinal ventilation velocities are also varied. The experimental data obtained in these four tunnel fire ...


    By SAGE Publications

  • Field Model Analysis and Experimental Assessment of Fire Severity and Smoke Movement in a Partitioned and a Non-partitioned Dwelling Unit

    Inter-compartment smoke spread in a dwelling unit is greatly impeded by the presence of partition walls. For the same fire load and floor area, smoke movement and associated fire severity for a non-partitioned (NP) unit are different from those of a partitioned (PT) unit. To study the smoke movement and gas temperature evolution, computational fluid dynamics (CFD) analysis is carried out for a ...


    By SAGE Publications

  • Modelling dispersion of smoke from wildfires in a Mediterranean area

    We present a modelling system for the estimation of forest fire emissions ( prebolchem-fire ) and their inclusion in the atmospheric composition model BOLCHEM. Emission fluxes have been estimated following the methodology proposed by Seiler and Crutzen (1980) and using MODIS ‘burned area product’. Then they are modulated following the WRAP approach (WRAP, 2005). This approach is also used for ...


    By Inderscience Publishers

  • Don’t Risk Your Life Going Up in Smoke

    What you need to know about smoke alarms Fire is an inescapable risk in both the home and workplace, with electrical products, heating and gas all presenting the possibility of an accidental blaze under the wrong circumstances. Preventing fires altogether with effective precautions is always preferable, but regardless at least one smoke alarm/detector – or mains powered ...


    By SHEilds Ltd

  • Fire Retardancy of Polyureas

    In this study, a variety of additives have been evaluated as potential fire retardants for polyureas with cone calorimetry being the method of evaluation. The additives that have been evaluated include minerals (alumina trihydrate), bromine-, nitrogen-, and phosphorus-based fire retardants. The major criteria for evaluation are the reductions in the peak heat release rate and the total heat ...


    By SAGE Publications

  • Fire prevention measures in gas fired boiler’s operation

    Gas fired boiler is a kind of industrial boiler using natural or coal gas as fuel,its fuel is risky,especially,fire leakage in the operation is easy to ...


  • The wildland fire threat

    The threat of wildfire is a major concern to more and more homeowners as construction of homes moves into the Wildland Urban Interface. Periods of drought are frightening times for residents of suburban and rural areas across the country, including the Northwest, the West, and the Rocky Mountain states as well as the Southeast. For those of us who live near natural areas of brush or forest, the ...


  • Tracking a Ceiling Jet Front for Hot Smoke Tests in Tunnels

    There are difficulties in tracking the ceiling jet front while carrying out hot smoke tests in long tunnels with a small fire. In this study, an experimental method using infrared beams is suggested. The arrival time of the hot ceiling jet front to a designated position is measured by the abrupt attenuation of the infrared beam intensity. Field measurements are carried out in an underground ...


    By SAGE Publications

  • When the smoke disappears: dealing with extinguishing chemicals in firefighting wastewater

    Water is not enough. Nowadays, numerous chemicals are used for fire extinction. After use, however, these may unintentionally enter sewerage systems. In order to safely treat firefighting wastewater (FFWW), knowledge of the potential effects of these chemicals on biological treatment processes is essential. This study characterized and mimicked the composition of FFWW containing two powders, ...


    By IWA Publishing

  • If the fire doesn’t kill you, the CO2 might – carbon dioxide and fire suppression

    Carbon dioxide (CO2) has been used in fire extinguishers and fire suppression systems for more than a hundred years. In high concentrations it dilutes oxygen, thus removing one of the three elements of the combustion triangle (the other two being heat and fuel). It is also cheap, widely available, odourless, colourless, electrically non-conductive, chemically inert and it leaves no residue. It is ...


    By Analox Sensor Technology

  • Fires at Composting Facilities: Causes and Conditions

    The subject of fires at composting facilities is a bad news/good news situation. The bad news is that fires are more common than we realize. Ask a group of facility operators if they have had to deal with a fire, and the majority will quietly admit they have. The good news is that we don’t realize that fires are fairly common at composting facilities. Most are neither frequent nor destructive ...


    By BioCycle Magazine

  • Prediction of Fire Growth for Compartments of Office Buildings as Part of a Fire Risk/Cost Assessment Model

    This article presents a zone model for the prediction of fire growth in a commercial compartment of an office building as part of a fire risk and cost assessment software package. The model developed is a combination of a transient, two-zone submodel used for the pre-flashover fire state and a quasi-steady, single-zone submodel for the post-flashover state. In the two-zone submodel, the selected ...


    By SAGE Publications

  • A case study of biomass burning and its smoke dispersion to Buenos Aires City, Argentina

    In February and March 2000, several uncontrolled forest and grassland fires occurred in the municipalities of Campana and Zarate (100 km north of Buenos Aires, Argentina). The biomass burning emitted a large amount of smoke particulates, which caused dense fog and visibility impairment in the nearby area. From 18 to 19 March, the smoke was transported towards the Buenos Aires Metropolitan Area ...


    By Inderscience Publishers

  • Technical brief - fire prevention takes hold

    Supporting contributors to the Code include The Association of British Insurers, The Chief Fire Officers Association and the London Fire Brigade. The Code is being incorporated in many site insurance contracts. Noteworthy is “non-compliance with this Code could possibly result in insurance ceasing to be available or being withdrawn, resulting in a possible breach of a construction contract ...

  • Firefighters may be exposed to asbestos battling fires

    EMSL Analytical can quickly test to determine the presence of asbestos in old buildings that catch fire and release the dangerous fibers into the air. Firefighters are regularly exposed to the dangers of extreme heat, fire and smoke, but new concerns over asbestos exposure have recently come to light. Although firefighters typically wear air masks connected to air canisters when battling a ...


  • Case study - SP Fire Laboratory, Sweden

    Fire laboratory at SP Borås uses EnviBat’s Wet Electrostatic Precipitator technology (WESP) since 2007. Extremely low emissions and high availability are key advantages. Project: WetESP for Fire Laboratory Many fire tests are made in full scale. Example for fire tests can be engine rooms, vehicles, store houses, compartments etc. Most of the tests will include ...


    By Envibat AB

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