Impedance characterization of high temperature proton exchange membrane fuel cell stack under the influence of carbon monoxide and methanol vapor

2017 ◽  
Vol 42 (34) ◽  
pp. 21901-21912 ◽  
Author(s):  
Christian Jeppesen ◽  
Pierpaolo Polverino ◽  
Søren Juhl Andreasen ◽  
Samuel Simon Araya ◽  
Simon Lennart Sahlin ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
High Temperature ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Methanol Vapor ◽  
Fuel Cell Stack ◽  
Exchange Membrane ◽  
Impedance Characterization

scholarly journals Single cell induced starvation in a high temperature proton exchange membrane fuel cell stack

2019 ◽  
Vol 250 ◽  
pp. 1176-1189 ◽  
Author(s):  
Cinthia Alegre ◽  
Antonio Lozano ◽  
Ángel Pérez Manso ◽  
Laura Álvarez-Manuel ◽  
Florencio Fernández Marzo ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Single Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Fuel Cell Stack ◽  
Exchange Membrane

Design and Experimental Characterization of a High-Temperature Proton Exchange Membrane Fuel Cell Stack

2011 ◽  
Vol 8 (5) ◽  
Author(s):  
Robert Radu ◽  
Nicola Zuliani ◽  
Rodolfo Taccani
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Single Cells ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Pure Hydrogen ◽  
Exchange Membrane

Proton exchange membrane (PEM) fuel cells based on polybenzimidazole (PBI) polymers and phosphoric acid can be operated at temperature between 120 °C and 180 °C. Reactant humidification is not required and CO content up to 1% in the fuel can be tolerated, only marginally affecting performance. This is what makes high-temperature PEM (HTPEM) fuel cells very attractive, as low quality reformed hydrogen can be used and water management problems are avoided. From an experimental point of view, the major research effort up to now was dedicated to the development and study of high-temperature membranes, especially to development of acid-doped PBI type membranes. Some studies were dedicated to the experimental analysis of single cells and only very few to the development and characterization of high-temperature stacks. This work aims to provide more experimental data regarding high-temperature fuel cell stacks, operated with hydrogen but also with different types of reformates. The main design features and the performance curves obtained with a three-cell air-cooled stack are presented. The stack was tested on a broad temperature range, between 120 and 180 °C, with pure hydrogen and gas mixtures containing up to 2% of CO, simulating the output of a typical methanol reformer. With pure hydrogen, at 180 °C, the considered stack is able to deliver electrical power of 31 W at 1.8 V. With a mixture containing 2% of carbon monoxide, in the same conditions, the performance drops to 24 W. The tests demonstrated that the performance loss caused by operation with reformates, can be partially compensated by a higher stack temperature.

Dynamic Model of the High Temperature Proton Exchange Membrane Fuel Cell Stack Temperature

2009 ◽  
Vol 6 (4) ◽  
Author(s):  
Søren Juhl Andreasen ◽  
Søren Knudsen Kær
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Cell Model ◽  
Thermal Control ◽  
Test System ◽  
Proton Exchange ◽  
Pure Hydrogen ◽  
Fuel Cell Stack ◽  
Exchange Membrane

The present work involves the development of a model for predicting the dynamic temperature of a high temperature proton exchange membrane (HTPEM) fuel cell stack. The model is developed to test different thermal control strategies before implementing them in the actual system. The test system consists of a prototype cathode air cooled 30 cell HTPEM fuel cell stack developed at the Institute of Energy Technology at Aalborg University. This fuel cell stack uses PEMEAS Celtec P-1000 membranes and runs on pure hydrogen in a dead-end anode configuration with a purge valve. The cooling of the stack is managed by running the stack at a high stoichiometric air flow. This is possible because of the polybenzimidazole (PBI) fuel cell membranes used and the very low pressure drop in the stack. The model consists of a discrete thermal model dividing the stack into three parts: inlet, middle, and end. The temperature is predicted in these three parts, where they also are measured. The heat balance of the system involves a fuel cell model to describe the heat added by the fuel cells when a current is drawn. Furthermore the model also predicts the temperatures when heating the stack with external heating elements for start-up, heat conduction through stack insulation, cathode air convection, and heating of the inlet gases in the manifold. Various measurements are presented to validate the model predictions of the stack temperatures.

scholarly journals In-Situ Measurement of High-Temperature Proton Exchange Membrane Fuel Cell Stack Using Flexible Five-in-One Micro-Sensor

Sensors ◽  
2016 ◽  
Vol 16 (10) ◽  
pp. 1731 ◽  
Author(s):  
Chi-Yuan Lee ◽  
Fang-Bor Weng ◽  
Yzu-Wei Kuo ◽  
Chao-Hsuan Tsai ◽  
Yen-Ting Cheng ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
In Situ Measurement ◽  
Fuel Cell Stack ◽  
Micro Sensor ◽  
Exchange Membrane

scholarly journals Fault detection and isolation of high temperature proton exchange membrane fuel cell stack under the influence of degradation

2017 ◽  
Vol 359 ◽  
pp. 37-47 ◽  
Author(s):  
Christian Jeppesen ◽  
Samuel Simon Araya ◽  
Simon Lennart Sahlin ◽  
Sobi Thomas ◽  
Søren Juhl Andreasen ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Fault Detection ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Fault Detection And Isolation ◽  
Fuel Cell Stack ◽  
Exchange Membrane

scholarly journals Characterization of a Ballard MK5-E Proton Exchange Membrane Fuel Cell Stack

Fuel Cells ◽  
2001 ◽  
Vol 1 (1) ◽  
pp. 66-71 ◽  
Author(s):  
F. Laurencelle ◽  
R. Chahine ◽  
J. Hamelin ◽  
K. Agbossou ◽  
M. Fournier ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Fuel Cell Stack ◽  
Exchange Membrane

Integration Study of Micro Reformer and High Temperature PEM Fuel Cell

2011 ◽  
Vol 197-198 ◽  
pp. 730-735 ◽  
Author(s):  
Ay Su ◽  
Ying Chieh Liu ◽  
Wei Chieh Lin ◽  
Chih Kai Cheng ◽  
Jai Houng Leu
Keyword(s):  
Carbon Monoxide ◽  
High Temperature ◽  
Fuel Cell ◽  
Catalytic Reaction ◽  
Power Output ◽  
Proton Exchange Membrane ◽  
Methanol Conversion ◽  
Proton Exchange ◽  
Low Carbon ◽  
Exchange Membrane

An integration platform assembling with methanol reformer and high-temperature proton exchange membrane fuel cell (PEMFC) was constructed in this present. The methanol micro reformer combines with catalytic reaction section and reforming section. Catalytic reaction section with Pt calalysis maintains the constant temperature envoriment for reforming process. SRM reforming results show the 74%~74.9% hydrogen and 23.5%~25.7% of carbon dioxide in the mixture product. Less than 2% of carbon monoxide was produced. Using the reforming product of low carbon monoxide concentration and the highest methanol conversion rate, a micro reformer links with fuel cell integration experiment was performed. Results show the high temperature PEMFC with 3 ~ 4W power output under methaol flow rate 15ml/hr. Due to the lower of hydrogen pressure supplying from the micro reformer, may cause the fuel cell power output become unstable.

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