Articles with "heat release" as a keyword



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New polyether diols as flame retardants for polyurethane: Derivatives of epoxy-functionalized phosphonates and phosphates

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Published in 2018 at "Fire and Materials"

DOI: 10.1002/fam.2452

Abstract: Summary Phosphorus-containing epoxides were used to generate several oligomeric polyether diols, which were in turn utilized in the preparation of model polyurethane (PU) samples, either as comonomers in the polymerization (Prep samples) or solvent blended… read more here.

Keywords: new polyether; release reduction; diols flame; polyether diols ... See more keywords
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Modified carbon‐dioxide measurement to predict the heat release rate of fire burning in a compartment based on the three‐zone model

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Published in 2019 at "Fire and Materials"

DOI: 10.1002/fam.2693

Abstract: The heat release rate (HRR) of fuels has been described as the single important variable of fuels in fire hazard, and the HRR experimental measurement remains a key issue in fire science. A modified carbon‐dioxide… read more here.

Keywords: model; heat release; fire; release rate ... See more keywords
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Numerical Investigation of Turbulent Kinetic Energy Dynamics in Chemically-Reacting Homogeneous Turbulence

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Published in 2018 at "Flow, Turbulence and Combustion"

DOI: 10.1007/s10494-018-9937-z

Abstract: In this work, we investigate numerically the temporal evolution of Turbulent Kinetic Energy (TKE) of a chemically-reacting n-heptane and air mixture in statistically Homogeneous Isotropic Turbulence (HIT). Our specific focus is on the concurrent view… read more here.

Keywords: kinetic energy; energy; dilatation; turbulence ... See more keywords
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Infrared Thermographic Testing of Steel Structures by Using the Phenomenon of Heat Release Caused by Deformation

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Published in 2018 at "Journal of Nondestructive Evaluation"

DOI: 10.1007/s10921-018-0482-4

Abstract: Deformation of steel parts is accompanied by either heating or cooling of particular zones depending on deformation mechanism. The use of infrared thermographic equipment allows analyzing spatial/temporal temperature distributions on the surface of steel parts… read more here.

Keywords: release caused; deformation; heat release; steel ... See more keywords
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The simplest model for reliable prediction of the total heat release of polymers for assessment of their combustion properties

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Published in 2017 at "Journal of Thermal Analysis and Calorimetry"

DOI: 10.1007/s10973-017-6776-4

Abstract: Total heat release of a polymer is the heat of complete combustion of the pyrolysis gases per unit its initial mass. Microscale combustion calorimetry, an oxygen consumption technique, identifies the total heat release of polymers… read more here.

Keywords: combustion; model; heat release; heat ... See more keywords
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Characterization of heat release rate by OH* and CH* chemiluminescence

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Published in 2019 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2018.10.022

Abstract: Abstract As single component chemiluminescence cannot accurately measure the distribution of heat release rate, this paper put forward the idea of employing OH* and CH* chemiluminescence for the measurement. However, it is difficult to characterize… read more here.

Keywords: chemiluminescence; release rate; heat release;
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Study of the fire hazards of lithium-ion batteries at different pressures

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Published in 2017 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2017.06.131

Abstract: Abstract The fire behavior of lithium-ion battery is affected by the environment conditions. In this paper, an experimental study is performed to assess the fire hazards of lithium-ion batteries at different atmospheric pressures by means… read more here.

Keywords: fire hazards; hazards lithium; heat release; ion ... See more keywords
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Effect of the fuel-air flow velocity on heat release rate of swirling non-premixed methane flames

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Published in 2019 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2019.105465

Abstract: Abstract A laboratory-scale gas turbine model combustor fueled with methane is studied experimentally with the aid of three-dimensional computed tomography of chemiluminescence (3D-CTC) and high speed (5 kHz) chemiluminescence imaging. Various fuel-lean operating conditions were… read more here.

Keywords: heat release; velocity; release rate; release ... See more keywords
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Discussion of laser interferometric vibrometry for the determination of heat release fluctuations in an unconfined swirl-stabilized flame

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Published in 2019 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2018.12.019

Abstract: Abstract Fluctuations in heat release, hot and cold spots convected by the flow and sound waves are all related to density fluctuations, a number easily detected by interferometry. Same as chemiluminescence, interferometry is a line-of-sight… read more here.

Keywords: laser interferometric; heat; interferometric vibrometry; flame ... See more keywords
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High vapour pressure nanofuel droplet combustion and heat transfer: Insights into droplet burning time scale, secondary atomisation and coupling of droplet deformations and heat release

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Published in 2019 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2019.07.043

Abstract: Abstract Combustion characteristics of ethanol-water (EW) droplets laden with ceria nanoparticles are investigated. The present experimental study focuses on three facets of droplet combustion (i) burning time scale of droplets with and without NPs, (ii)… read more here.

Keywords: heat; droplet; heat release; coupling droplet ... See more keywords
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Contributions of flame thickening and extinctions to a heat release rate marker of intensely turbulent premixed hydrogen-enriched methane-air flames

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Published in 2021 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2021.111481

Abstract: Abstract Influences of the reaction zone thickening and extinctions on a heat release rate marker of extremely turbulent hydrogen-enriched methane-air flames are investigated using simultaneous planar laser-induced fluorescence of formaldehyde molecule and hydroxyl radical as… read more here.

Keywords: release rate; rate marker; heat release;