A comparison between GDP and PDP experiments of hydrogen permeation through 15μm Pd60-Cu40% membrane thickness in a micro channel plate type reactor
A comparison between GDP and PDP experiments of hydrogen permeation through 15μm Pd60-Cu40% membrane thickness in a micro channel plate type reactor
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微通道板式反应器中15μm Pd60-Cu40%膜厚GDP与PDP氢渗透实验对比
DOI：
10.1016/j.fusengdes.2019.111320
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发表时间：
2019
影响因子：
1.7
通讯作者：
Y. Hayakawa
中科院分区：
文献类型：
--
作者：
Mostafa El-Shafie;S. Kambara;Y. Hayakawa
研究了在1 mm长的平板微通道反应器（PMCR）中，在气体驱动渗透（GDP）和等离子体驱动渗透（PDP）条件下，氢气通过厚度为15 μm的Pd60%-Cu40%合金薄膜的渗透性能。在大气压和423-573 K的温度范围内将纯氢气进料到PMCR中。在GDP实验中，氢渗透通量随温度的变化曲线显示出随PMCR加热温度的升高而持续增加的趋势，而在PDP实验中，在等离子体施加电压为16 kV，温度为573 K时，氢渗透通量的趋势表现出小的峰值增加。对两种实验的能量效率进行了测定，发现由于向等离子体系统中加入了总热量，GDP实验的能量效率值高于PDP实验的能量效率值。GDP实验在H2流量0.1 L/min、温度573 K时能量效率最高，为63.37%，而PDP实验在等离子体电压14 kV、H2流量0.1 L/min、温度573 K时能量效率最高，为48.7%。此外，确定了相对于总能耗的收率评价，当添加到系统的能量增加时，对收率的影响更强。对两种实验的产率进行了比较，结果表明等离子体对氢渗透的影响大于加热效应，且低温下等离子体效应增强。GDP结果表明，低温下H2的输出能量很低，在573 K时达到最大值20.89 W。而在PDP中，随着放电电压的增加，其峰值功率不断增加，在14 kV和573 K时达到最大值20.997 W。
This study analyses the performance of hydrogen permeation through thin palladium 60%-copper40% alloy membrane with a thickness of 15 μm in 1 mm gap length plate micro channel reactor (PMCR) under gas driven permeation (GDP) and plasma driven permeation (PDP). Pure hydrogen gas was fed into the PMCR at atmospheric pressure and temperature range of 423–573 K. The hydrogen permeation flux plot of GDP experiment versus the inverse temperature showed a continuous increase with the PMCR heating temperature, while in PDP experiment the trend behavior showed a small peak increase at plasma applied voltage 16 kV and temperature 573 K. The energy efficiency of both experiments were determined, it was found that the energy efficiency values of GDP experiment was higher than that obtained from PDP experiment due to the total heat added to the plasma system. Further, the maximum energy efficiency of GDP experiment was 63.37% at H2flow rate 0.1 L/min and temperature 573 K, while in PDP experiment the maximum value was 48.7% at plasma voltage 14 kV, H2flow rate 0.1 L/min and temperature 573 K. Further, the yield ratio evaluation versus the total energy consumptions was determined, the stronger effect on yield ratio was noted when the energy added to the system increased. A comparison between the yield ratios of both experiments has been developed, it was concluded that the influence of plasma on hydrogen permeation was higher than heating effect, additionally the plasma effect increased at low temperatures. The hydrogen output energy versus the energy consumption was compared, it was observed in GDP results that the output H2energy very low at low temperature and increased to the maximum value 20.89 W at 573 K. While in PDP results, it was seen a continuous increase with discharge voltage to reach the maximum value 20.997 W at 14 kV and temperature of 573 K.