MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02774nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20250625140630.0 |
| 040 ## - CATALOGING SOURCE |
|---|
| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-10388 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Numerical study of cell performance and local transport phenomena in PEM fuel cells with various flow channel area ratios |
| 490 0# - SERIES STATEMENT |
|---|
| Volume/sequential designation |
Journal of Power Sources, 172(1), p.265-277, 2007 |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
Three-dimensional models of proton exchange membrane fuel cells (PEMFCs)with parallel and interdigitated flow channel designs were developed including the effects of liquid water formation on the reactant gas transport. The models were used to investigate the effects of the flow channel area ratio and the cathode flow rate on the cell performance and local transport characteristics. The results reveal that at high operating voltages, the cell performance is independent of the flow channel designs and operating parameters, while at low operating voltages, both significantly affect cell performance. For the parallel flow channel design, as the flow channel area ratio increases the cell performance improves because fuel is transported into the diffusion layer and the catalyst layer mainly by diffusion. A larger flow channel area ratio increases the contact area between the fuel and the diffusion layer, which allows more fuel to directly diffuse into the porous layers to participate in the electrochemical reaction which enhances the reaction rates. For the interdigitated flow channel design, the baffle forces more fuel to enter the cell and participate in the electrochemical reaction, so the flow channel area ratio has less effect. Forced convection not only increases the fuel transport rates but also enhances the liquid water removal, thus interdigitated flow channel design has higher performance than the parallel flow channel design. The optimal performance for the interdigitated flow channel design occurs for a flow channel area ratio of 0.4. The cell performance also improves as the cathode flow rate increases. The effects of the flow channel area ratio and the cathode flow rate on cell performance are analyzed based on the local current densities, oxygen flow rates and liquid water concentrations inside the cell. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PROTON EXCHANGE MEMBRANE FUEL CELLS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
FLOW CHANNEL AREA RATIO |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PARALLEL FLOW CHANNEL DESIGN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
INTERDIGITATED FLOW CHANNEL DESIGN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
ELECTROCHEMICAL REACTION |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wang, X.D. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Duanb, Y.Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Yan, W.M. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1taRISI7mvubYKxdiChT5AgVdIcD6dLrc/view?usp=drivesdk">https://drive.google.com/file/d/1taRISI7mvubYKxdiChT5AgVdIcD6dLrc/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
