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首页> 外文期刊>Journal of power sources >Liquid methanol concentration sensors for direct methanol fuel cells
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Liquid methanol concentration sensors for direct methanol fuel cells

机译：用于直接甲醇燃料电池的液态甲醇浓度传感器

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摘要

Liquid-fed direct methanol fuel cells (DMFCs) are one of the most promising candidates for portable power electronics and automotive applications due to their potentially high-energy density, simple storage, and distribution of the fuel. The concentration of methanol in the fuel circulation loop of a DMFC system is an important operating parameter, because it determines the electrical performance and efficiency of the system. The methanol concentration in the circulating fuel stream is usually measured continuously with a suitable sensor for the purpose of maintaining optimal power and efficiency in the DMFC system. Various methods of sensing methanol concentration have been proposed over the past decade. This paper reviews these methanol concentration sensors for DMFCs, which are generally classified into two groups: electrochemical and physical. The construction and operating principles of each sensor, as well as its advantages and disadvantages, are described. The sensorless methods for controlling the methanol concentration are introduced briefly. Finally, the perspective on the future of methanol concentration sensors is discussed.
机译：液体喂养的直接甲醇燃料电池（DMFC）由于其潜在的高能量密度，简单的储存和燃料分配，因此是便携式电力电子和汽车应用中最有希望的候选者之一。 DMFC系统的燃料循环回路中的甲醇浓度是重要的操作参数，因为它决定了系统的电气性能和效率。为了保持DMFC系统中的最佳功率和效率，通常使用合适的传感器连续测量循环燃料流中的甲醇浓度。在过去的十年中已经提出了多种检测甲醇浓度的方法。本文回顾了这些DMFC的甲醇浓度传感器，这些传感器通常分为两类：电化学和物理。描述了每个传感器的结构和操作原理，以及其优缺点。简要介绍了控制甲醇浓度的无传感器方法。最后，讨论了甲醇浓度传感器的未来前景。

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