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首页> 外文期刊>International Journal of Heat and Mass Transfer >Thermal and chemical kinetic characterization of multiphase and multicomponent substances by laser heating
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Thermal and chemical kinetic characterization of multiphase and multicomponent substances by laser heating

机译：激光加热对多相和多组分物质的热和化学动力学表征

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摘要

A novel approach is described that determines the thermal behavior and decomposition of multiphase solid and liquid substances, such as chemical wastes, fuels, aerosol particles, and propellants through rapid and controlled heating with laser radiation. The laser-driven thermal reactor (LDTR) was developed to provide near temporally resolved determination of substance thermophysical properties and chemical reaction characteristics over a wide range of temperatures (up to 2000 K), heating rates (up to several hundreds of degrees per second), gas pressures, and ambient environments. Described is the experimental arrangement and supporting theory that is used to determine substance thermophysical and chemical behavior. Examples of the application of this technique are given for different substances, namely, a simulant multicomponent organic chemical waste, nitromethane, and activated carbon.
机译：描述了一种新颖的方法，该方法通过使用激光辐射进行快速而受控的加热来确定多相固体和液体物质（例如化学废物，燃料，气溶胶颗粒和推进剂）的热行为和分解。激光驱动的热反应器（LDTR）的开发旨在在宽范围的温度（最高2000 K），加热速率（最高每秒几百度）内提供对物质热物理性质和化学反应特性的近时分辨测定，气压和周围环境。描述了用于确定物质热物理和化学行为的实验安排和支持理论。给出了针对不同物质（即模拟多组分有机化学废物，硝基甲烷和活性炭）的该技术应用示例。

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