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首页> 外文会议>International symposium on the measurement of toxic and related air pollutants >In-Situ Measurements of CO, CO_2, and H_20 Combustion Emissions with Diode Laser Sensors
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In-Situ Measurements of CO, CO_2, and H_20 Combustion Emissions with Diode Laser Sensors

机译：使用二极管激光传感器对CO，CO_2和H_20燃烧排放进行现场测量

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摘要

CO, CO_2, and H20 emissions from a laboratory flame are measured in-situ usingrndiode laser sensors in the hot, post-flame gases and the cooler exhaust ducts. COrnis a toxic regulated pollutant and CO_2 is an important greenhouse gas; togetherrnthese two species provide a measure of the total fuel carbon. CO_2 and H20 arernthe major products of hydrocarbon combustion and can be used to determinerncombustion efficiency. Light from multiple lasers traverses the flame effluentrnand each species is monitored by absorption of light that is resonant with nearinfraredrnvibrational overtone transitions. Absorption spectroscopy yields pathaveragedrnconcentration measurements without intrusive probes that can perturbrnthe gas flow or reaction chemistry. In-situ absorption diagnostics can providernreal-time monitoring of the effluent without the inherent time lag for gas transportrnor risk of species conversion in extractive sampling probes. A CO detection limitrnless than 0.1 ppdm with a 1 second measurement time is well below the 9 ppmrnTLV allowed for 8 hours exposure, and this detection limit is sufficient forrnremote, on-road measurements to quantify the CO emission from the cleanestrnautos.
机译：实验室火焰中的CO，CO_2和H20排放是使用二极管激光传感器在炎热的后燃烧气体和较冷的排气管中现场测量的。 COnis是有毒的受管制污染物，而CO_2是重要的温室气体；这两个物种共同提供了总燃料碳的量度。 CO_2和H2O是碳氢化合物燃烧的主要产物，可用于确定燃烧效率。来自多个激光器的光穿过火焰流出物，并通过吸收与近红外振动泛音跃迁共振的光来监视每个物质。吸收光谱法可在没有干扰气体或反应化学干扰的侵入式探头的情况下进行路径平均浓度测量。原位吸收诊断可以提供对流出物的实时监控，而没有固有的气体传输时间滞后或提取采样探针中发生物种转化的风险。在1秒钟的测量时间内，CO的检出限不小于0.1 ppdm，远低于暴露于8小时的9 ppmrnTLV，并且该检出限足以进行远程道路测量，以量化最清洁汽车的CO排放量。

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  • 来源
  • 会议地点 Research Triangle Park NC(US)
  • 作者

    Jian Wang; Michael E. Webber; Scott T. Sanders; Douglas S. Baer; rnJay B. Jeffries; Ronald K. Hanson; M. Maiorov; D. Z. Garbuzov; J. C. Connolly;

  • 作者单位

    High Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnHigh Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnHigh Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnHigh Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnHigh Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnHigh Temperature Gasdynamics LaboratoryrnDepartment of Mechanical Engineering, Building 520rnStanford UniversityrnStanford, CA 94305-3032;

    rnSensors Unlimited, Inc., 3490 Route 1, Princeton, NJ 08540;

    rnSarnoff Corporation, CN-5300, Princeton, NJ 08543;

    rnSarnoff Corporation, CN-5300, Princeton, NJ 08543;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 大气监测;污染分析与测定;
  • 关键词

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