Measurement of Gaseous Impurities in Hydrogen Fuel

机译：氢燃料中气态杂质的测量

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Maximum concentrations listed in specifications for hydrogen fuel are solely based on their effects on performance of a fuel cell, and are not related to capabilities of analytical equipment to measure them. Thus the design of the analyzer must conform to capabilities needed to measure these mandated levels with good precision and accuracy. A single detection approach is not feasible with the very low sensitivities required. Even with specifically tuned detectors, some target levels push intrinsic performance limits, especially carbon monoxide. And several others rely on separating individual species and then summing their concentrations to get a total, including total sulfurs and halogenated compounds. These very low action levels require large volumes focused down to a small injection volume in order to detect them.

机译：氢燃料规格中列出的最大浓度仅基于其对燃料电池性能的影响，与分析设备对其进行测量的能力无关。因此，分析仪的设计必须符合以良好的精度和准确度测量这些法定水平所需的功能。对于所需的非常低的灵敏度，单一的检测方法是不可行的。即使使用经过特殊调整的检测器，某些目标水平也会突破固有性能极限，尤其是一氧化碳。还有一些其他方法则依赖于分离单个物种，然后求和它们的浓度以获得总计，包括总硫和卤代化合物。这些非常低的动作水平需要将大体积的焦点集中到较小的注射体积上才能进行检测。

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《Air and Waste Management Association annual conference and exhibition》|2014年|541-552|共12页
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Randall Bramston-Cook; Edward Bramston-Cook; David Blekhman;
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Measurement of Gaseous Impurities in Hydrogen Fuel

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