Enhancement effects of the obstacle arrangement and gradient height distribution in serpentine flow-field on the performances of a PEMFC

2022 ◽  
Vol 252 ◽  
pp. 115077
Author(s):  
Yang Wang ◽  
Z.Y. Sun ◽  
Liu Yang
Keyword(s):  
Flow Field ◽  
Height Distribution ◽  
Serpentine Flow Field

scholarly journals Scaling up Studies on PEMFC Using a Modified Serpentine Flow Field Incorporating Porous Sponge Inserts to Observe Water Molecules

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 286
Author(s):  
Muthukumar Marappan ◽  
Rengarajan Narayanan ◽  
Karthikeyan Manoharan ◽  
Magesh Kannan Vijayakrishnan ◽  
Karthikeyan Palaniswamy ◽  
...  
Keyword(s):  
Flow Field ◽  
Proton Exchange Membrane ◽  
Electrochemical Impedance ◽  
Scaling Up ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Experimental Investigations ◽  
Serpentine Flow Field ◽  
Exchange Membrane ◽  
Power Densities

Flooding of the cathode flow channel is a major hindrance in achieving maximum performance from Proton Exchange Membrane Fuel Cells (PEMFC) during the scaling up process. Water accumulated between the interface region of Gas Diffusion Layer (GDL) and rib of the cathode flow field can be removed by the use of Porous Sponge Inserts (PSI) on the ribs. In the present work, the experimental investigations are carried out on PEMFC for the various reaction areas, namely 25, 50 and 100 cm2. Stoichiometry value of 2 is maintained for all experiments to avoid variations in power density obtained due to differences in fuel utilization. The experiments include two flow fields, namely Serpentine Flow Field (SFF) and Modified Serpentine with Staggered provisions of 4 mm PSI (4 mm × 2 mm × 2 mm) Flow Field (MSSFF). The peak power densities obtained on MSSFF are 0.420 W/cm2, 0.298 W/cm2 and 0.232 W/cm2 compared to SFF which yields 0.242 W/cm2, 0.213 W/cm2 and 0.171 W/cm2 for reaction areas of 25, 50 and 100 cm2 respectively. Further, the reliability of experimental results is verified for SFF and MSSFF on 25 cm2 PEMFC by using Electrochemical Impedance Spectroscopy (EIS). The use of 4 mm PSI is found to improve the performance of PEMFC through the better water management.

Innovative Flow-Field Combination Design on Direct Methanol Fuel Cell Performance

2006 ◽  
Vol 4 (3) ◽  
pp. 365-368 ◽  
Author(s):  
Guo-Bin Jung ◽  
Ay Su ◽  
Cheng-Hsin Tu ◽  
Fang-Bor Weng ◽  
Shih-Hung Chan
Keyword(s):  
Fuel Cells ◽  
Flow Field ◽  
Direct Methanol Fuel Cells ◽  
Flow Fields ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Serpentine Flow Field ◽  
Structure Of Flow ◽  
Direct Methanol ◽  
Stable Performance

The flow-field design of direct methanol fuel cells (DMFCs) is an important subject about DMFC performance. Flow fields play an important role in the ability to transport fuel and drive out the products (H2O,CO2). In general, most fuel cells utilize the same structure of flow field for both anode and cathode. The popular flow fields used for DMFCs are parallel and grid designs. Nevertheless, the characteristics of reactants and products are entirely different in anode and cathode of DMFCs. Therefore, the influences of flow fields design on cell performance were investigated based on the same logic with respect to the catalyst used for cathode and anode nonsymmetrically. To get a better and more stable performance of DMFCs, three flow fields (parallel, grid, and serpentine) utilized with different combinations were studied in this research. As a consequence, by using parallel flow field in the anode side and serpentine flow-field in the cathode, the highest power output was obtained.

An inverse geometry design problem for optimization of single serpentine flow field of PEM fuel cell

2010 ◽  
Vol 35 (9) ◽  
pp. 4247-4257 ◽  
Author(s):  
Xiao-Dong Wang ◽  
Yu-Xian Huang ◽  
Chin-Hsiang Cheng ◽  
Jiin-Yuh Jang ◽  
Duu-Jong Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Design Problem ◽  
Pem Fuel Cell ◽  
Geometry Design ◽  
Serpentine Flow Field ◽  
Inverse Geometry

A 3D macro-segment network model for vanadium redox flow battery with serpentine flow field

2021 ◽  
pp. 139657
Author(s):  
Yu-Hang Jiao ◽  
Meng-Yue Lu ◽  
Wei-Wei Yang ◽  
Xin-Yuan Tang ◽  
Miao Ye ◽  
...  
Keyword(s):  
Flow Field ◽  
Network Model ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Serpentine Flow Field ◽  
Vanadium Redox

Performance of Parallel, Interdigitated, and Serpentine Flow Field PEM Fuel Cells with Straight or Wavelike Channels

2020 ◽  
Vol 146 (5) ◽  
pp. 04020054 ◽  
Author(s):  
Quan Ding ◽  
Hong-Liang Zhao ◽  
Zhong-Min Wan ◽  
Yan-Ru Yang ◽  
Chen Yang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Flow Field ◽  
Pem Fuel Cells ◽  
Serpentine Flow Field

Experimental Investigation of Proton Exchange Membrane (PEM) Fuel Cell Using Different Serpentine Flow Channels

2019 ◽  
Vol 969 ◽  
pp. 461-465
Author(s):  
Matha Prasad Adari ◽  
P. Lavanya ◽  
P. Hara Gopal ◽  
T.Praveen Sagar ◽  
S. Pavani
Keyword(s):  
Fuel Cell ◽  
Flow Field ◽  
Current Density ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Bipolar Plates ◽  
Flow Channels ◽  
Serpentine Flow Field ◽  
Exchange Membrane ◽  
Effective Distribution

Proton exchange membrane fuel cell (PEMFC) system is an advanced power system for the future that is sustainable, clean and environmental friendly. The flow channels present in bipolar plates of a PEMFC are responsible for the effective distribution of the reactant gases. Uneven distribution of the reactants can cause variations in current density, temperature, and water content over the area of a PEMFC, thus reducing the performance of PEMFC. By using Serpentine flow field channel, the performance is increased. Two types of serpentine flow field channels are implemented such as curved serpentine flow field channel and normal serpentine flow field channels. The result shows that curved serpentine flow field channel gives better current density and power density, thus increasing the performance of PEMFC.

The Effect of Different Flow Patterns on Anode Fluid Behaviors of Micro Direct Methanol Fuel Cells

2009 ◽  
Vol 60-61 ◽  
pp. 260-264
Author(s):  
Bo Zhang ◽  
Yu Feng Zhang ◽  
Xiao Wei Liu ◽  
Peng Zhang
Keyword(s):  
Flow Field ◽  
Gas Flow ◽  
Direct Methanol Fuel Cells ◽  
Current Collector ◽  
Flow Patterns ◽  
Carbon Paper ◽  
Carbon Cloth ◽  
Serpentine Flow Field ◽  
Direct Methanol ◽  
Visualization Technology

Based on the visualization technology, we investigated experimentally the effect of different flow patterns on anode fluid behaviors of the μDMFC (Micro Direct Methanol Fuel Cell) with a transparent material under the same condition. Stainless steel mesh was utilized as the current collector which was distinct from the carbon cloth or carbon paper. Four dissimilar flow patterns were developed and tested. The observation of the effect of different flow patterns revealed that movements of dilute methanol solutions and CO2 gas bubbles in the dot and parallel flow fields represented more difficult, which could result in a decline of the μDMFC performance. The study also showed that a channel blocking in the single-serpentine flow field would be extremely terrible which could lead to a fuels leaking of the μDMFC, meanwhile the liquid-gas flow was more fluent and stable in a double-serpentine flow field. Therefore, due to its advantages, a double-serpentine flow pattern is more suitable for the μDMFC application compared with the other flow patterns.

Innovative Flow Field Combination Design on Direct Methanol Fuel Cell Performance

2005 ◽  
Author(s):  
Guo-Bin Jung ◽  
Ay Su ◽  
Cheng-Hsin Tu ◽  
Fang-Bor Weng ◽  
Shih-Hung Chan
Keyword(s):  
Fuel Cells ◽  
Flow Field ◽  
Direct Methanol Fuel Cells ◽  
Flow Fields ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Serpentine Flow Field ◽  
Structure Of Flow ◽  
Direct Methanol ◽  
Stable Performance

The flow-field design of Direct Methanol Fuel Cells (DMFCs) is an important subject about the DMFCs performance. Flow-fields play an important role on ability to transport fuel and drive out the products (H2O, CO2). In general, most of fuel cells utilize the same structure of flow-field for both anode and cathode. The popular flow-fields used for DMFCs are parallel and grid designs. Nevertheless, the characteristics of reactants and products are entirely different in anode and cathode of DMFCs. Therefore; the influences of the flow-fields designs on the cell performance were investigated due to the same logic for catalyst used for cathode and anode differently. To get the better and more stable performance of DMFC, three flow-fields (Parallel, Grid and Serpentine) are utilized with different combination were studied in this research. As a consequence, by using parallel flow-field in anode side and serpentine flow -field in cathode, the most and highest power output was obtained.

Current Distribution along a Quad-Serpentine Flow Field: GDL Evaluation

2019 ◽  
Vol 1 (6) ◽  
pp. 605-612 ◽  
Author(s):  
Michael Hicks ◽  
Karl Kropp ◽  
Alison Schmoeckel ◽  
Radoslav Atanasoski
Keyword(s):  
Flow Field ◽  
Current Distribution ◽  
Serpentine Flow Field
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