電化學泵應用於氫回收之研究

蔣森武

doi:10.6844/NCKU.2012.02083

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電化學泵應用於氫回收之研究

Studies of Hydrogen Recovery with Electrochemical Pumping

蔣森武 , Masters　　Advisor：王振源;賴維祥　　

繁體中文 DOI： 10.6844/NCKU.2012.02083

質子交換膜燃料電池；電化學泵；氫氣回收率；氣體增壓； PEMFC ； electrochemical pump ； anode humidification temperature ； hydrogen recovery rate ； hydrogen pressurized

Abstract │ Reference (54) │ Times Cited (14) │ Altmetrics

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In this study, a polymer electrolyte membrane (PEM) fuel cell is used as a hydrogen recovery device based on the theory of electrochemical pumps. Contrast to standard fuel cells which generate electricity and water due to the electrochemical reaction, the fuel cell does not generate electricity. Electrochemical pumps consume power to pump ion of hydrogen across the polymer electrolyte membrane to react with electrons and generate hydrogen in the cathode. This way can recovery hydrogen effectively and reduce fuel that the waste while using the anodic water removal method. However, it was treated anodic humidification temperatures and different cell temperatures with different applied voltage to find the better performance when the system connected with the electrochemical pumps. 
From the analysis of experimental data it is possible to evaluate the performance of hydrogen recovery effects on different anodic humidification temperatures, different cell temperatures. Results shows that when cell temperature at 50 oC and anode humidification temperature at 50 oC the performance of hydrogen recovery rate is better than others and the energy recovery efficiency of electrochemical pumps in this operation situation can get to 47%. Using electrochemical pumps to enhance the pressure of cathode volume may be pressurize the hydrogen at the different applied voltage so it can pump up or separate hydrogen from the low pressure anode to the high pressure cathode and the method of two stage electrochemical pumps can pressurize the recovery hydrogen from the first electrochemical pump again. On the other hand, gas purity measurements of the nitrogen/hydrogen mixture gas were performed and the effects of the carbon monoxide poisoning on electrochemical pump performance were achieved.

Reference ( 54 ) 〈TOP〉

2. R. Menzer, B. Höhelin “Analysis of Energy and Water Management in Terms of Fuel-cell Electricity Generation,” Journal of Power Sources, 71_(1998) 294-301.
連結：
3. B. Emonts , J. Bøgild Hansen, H. Schmidt, T. Grube, B. Höhelin, R. Peters, A. Tschauder, “Fuel Cell Drive System with Hydrogen Generation in Test,” Journal of Power Sources, 86_(2000) 228–236
連結：
4. D. B., Daisie J.M. Michael, “Proton Exchange Membrane (PEM) Fuel Cell-powered Vehicle Performance Using Direct-Hydrogen Fueling and On-board Methanol Reforming,” Energy 29_(2004) 2317–2330
連結：
7. Y. K., Amey, J.Sun and J.H. Buckland.“ Control Analysis of an Ejector Based Fuel-cell Anode Recirculation System,” Proceedings of the 2006 American Control Conference, Minneapolis, Minnesota, USA, June 14-16, 2006.
連結：
8. Y. Zhu, Y. Li and W. Cai, “Numerical Modeling and Analysis of Ejector in the Proton Exchange Membrane Fuel Cell System,” ©2009 IEEE
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