Development and testing of a hybrid system with a sub-kW open-cathode type PEM (proton exchange membrane) fuel cell stack

In this study, the performance of a polymer electrolyte membrane fuel cell stack has been evaluated for a hybrid power system test platform. To simulate vehicle acceleration, the stack was operated under dynamic-loading, and to demonstrate the exchange of power flow between two power sources the hybrid power system was tested under three different modes. A unit cell was fabricated for high stack performance and the stack was constructed with 18 open-cathode type fuel cells. Air which acts as a coolant as well as an oxidant for electrochemical reactions is provided by a pair of fans. The capabilities of the stack for hybrid power system test platform were validated by successful dynamic-loading tests. The performance of the stack for various air fan voltage was evaluated and an optimal value was concluded. The conditions like inlet temperature of H2 and the stack current were established for maximum power. It was also found that humidification of hydrogen at anode inlet degrades the stack performance and stability due to flooding. Evidence shows that for the higher overall performance, the fuel cell acts continuously on constant current output. The study contributes to the design of mobility hybrid system to get better performance and reliability.

[1]  C. M. Rangel,et al.  High performance PEMFC stack with open-cathode at ambient pressure and temperature conditions , 2007 .

[2]  Y. M. Ferng,et al.  Numerical simulation of thermal–hydraulic characteristics in a proton exchange membrane fuel cell , 2003 .

[3]  B. Popov,et al.  Effect of cathode GDL characteristics on mass transport in PEM fuel cells , 2009 .

[4]  Ay Su,et al.  A high-efficiency, compact design of open-cathode type PEMFCs with a hydrogen generation system , 2014 .

[5]  Jianguo Liu,et al.  The performance improvement of membrane and electrode assembly in open-cathode proton exchange membrane fuel cell , 2013 .

[6]  T. Henriques,et al.  Increasing the efficiency of a portable PEM fuel cell by altering the cathode channel geometry: A numerical and experimental study , 2010 .

[7]  Félix Barreras,et al.  Design and development of the cooling system of a 2 kW nominal power open-cathode polymer electrolyte fuel cell stack , 2012 .

[8]  Yong Tang,et al.  Experimental investigation of dynamic performance and transient responses of a kW-class PEM fuel cell stack under various load changes , 2010 .

[9]  Inmaculada Zamora,et al.  Influence of the rated power in the performance of different proton exchange membrane (PEM) fuel cells , 2010 .

[10]  Z. Ren,et al.  Stacks with TiN/titanium as the bipolar plate for PEMFCs , 2012 .

[11]  Massimo Santarelli,et al.  Experimental analysis of the effects of the operating variables on the performance of a single PEMFC , 2007 .

[12]  Fritz B. Prinz,et al.  Passive water management at the cathode of a planar air-breathing proton exchange membrane fuel cell , 2010 .

[13]  Fausto Posso,et al.  Modelling and simulation of the utilization of a PEM fuel cell in the rural sector of Venezuela , 2010 .

[14]  Duu-Jong Lee,et al.  Experimental study of commercial size proton exchange membrane fuel cell performance , 2011 .

[15]  Sejin Kwon,et al.  Fuel cell system with sodium borohydride as hydrogen source for unmanned aerial vehicles , 2011 .

[16]  C. Hochenauer,et al.  Water droplet accumulation and motion in PEM (Proton Exchange Membrane) fuel cell mini-channels , 2012 .

[17]  P. Manoj Kumar,et al.  A passive method of water management for an air-breathing proton exchange membrane fuel cell , 2013 .

[18]  Ay Su,et al.  The impact of flow field pattern on concentration and performance in PEMFC , 2005 .

[19]  Arun S. Mujumdar,et al.  Numerical evaluation of various gas and coolant channel designs for high performance liquid-cooled proton exchange membrane fuel cell stacks , 2012 .

[20]  Qi Zhang,et al.  A methodology for economic and environmental analysis of electric vehicles with different operational conditions , 2013 .

[21]  Abdul-Ghani Olabi,et al.  Wind/hydrogen hybrid systems: opportunity for Ireland’s wind resource to provide consistent sustainable energy supply , 2010 .

[22]  Ay Su,et al.  Experimental evaluation of an ambient forced-feed air-supply PEM fuel cell , 2008 .

[23]  S. Rowshanzamir,et al.  Water transport through a PEM (proton exchange membrane) fuel cell in a seven-layer model , 2013 .

[24]  Pradeep Haldar,et al.  Durability and degradation mechanism of titanium nitride based electrocatalysts for PEM (proton exchange membrane) fuel cell applications , 2013 .