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Keywords: humidity
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Electrochem. En. Conv. Stor. December 2014, 11(6): 061007.
Paper No: FC-14-1067
Published Online: December 1, 2014
.... This can be seen from the longer error bars in Fig. 8( a ) . This could be due to a combination of high temperature, low humidity, low anode stoichiometry, and high pressure. The issue is removed for the other two curves, where pressure and temperature were lowered and the anode stoichiometry...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Electrochem. En. Conv. Stor. August 2014, 11(4): 041008.
Paper No: FC-13-1035
Published Online: April 17, 2014
... with the steady state isotropic transient kinetic analysis (SSITKA) method. The effect of the humidity level on desorption kinetics was quantified. The carbon monoxide (CO) desorption kinetic constant was calculated regardless of the gas flow rate. The kinetic constant dropped up to 58% with the increasing...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Electrochem. En. Conv. Stor. December 2010, 7(6): 064502.
Published Online: August 20, 2010
... corresponding to the inception of two-phase flow, called the threshold current density, is found to be a function of the channel length and height, GDL thickness, velocity, and relative humidity of the air at the inlet and cell temperature. Thus, for given design and operating conditions, the analytical model...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. April 2010, 7(2): 021011.
Published Online: January 11, 2010
...., Academic , New York , p. 271 . 16 09 2007 21 01 2009 11 01 2010 11 01 2010 current density electrochemical electrodes solid oxide fuel cells SOFC cathode humidity degradation Solid oxide fuel cells (SOFCs) are promising power generation systems...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2009, 6(3): 031001.
Published Online: May 11, 2009
... distribution of the entire module as well as of the oxygen concentration and relative humidity at a specific cell. Airflow near the cathode in a single cell was also visualized. It was concluded that the power breakdown was probably caused by flooding in the anode of one of the most downstream cells...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Electrochem. En. Conv. Stor. August 2007, 4(3): 231–237.
Published Online: May 26, 2006
...Fabio Rinaldi; Renzo Marchesi The aim of this work is the performance study of a polimeric electrolyte membrane stack. Extreme conditions of temperature and relative humidity, such as those that may be found in practical situations (i.e., automotive), have been considered. The research has been...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2006, 3(3): 351–357.
Published Online: November 10, 2005
... is useful in investigating the current density distribution in a single cell as well as a stack, which carries the information about the local reactant activity over the electrode area. It was found that the current density close to the gas inlets is strongly influenced by the reactants' relative humidity...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. February 2006, 3(1): 51–61.
Published Online: August 2, 2005
... and membrane Ohmic overpotential. Overall, good agreements between the simulated results and the experimental data were obtained. However, at large current densities, with high relative humidity reactant inputs, the simulation under-predicted the fuel cell performance due to the single-phase assumption...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. November 2005, 2(4): 274–283.
Published Online: May 13, 2005
... heat generation. In the anode channel, on the other hand, the phase change is less likely to occur even if the inlet hydrogen is humidified with a high relative humidity value. The model is partially validated using the experimental data from open literature. A series of analyses are carried out...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2005, 2(3): 149–155.
Published Online: January 28, 2005
...-osmotic drag and diffusion depends not only on operating conditions, such as current density and relative humidity at the membrane boundaries, but also on design parameters, such as membrane thickness and membrane material. Computed water fluxes for different humidity boundary conditions indicate...