507 Carbon Dioxide Release in Passive Direct Methanol Fuel Cell

2008 ◽  
Vol 2008 (0) ◽  
pp. 113-114
Author(s):  
Osamu KUBOTA ◽  
Ko TAKAHASHI
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Direct Methanol ◽  
Carbon Dioxide Release ◽  
Methanol Fuel Cell

Carbon Dioxide Transport in Nafion 1100 EW Membrane and in a Direct Methanol Fuel Cell

2015 ◽  
Vol 162 (10) ◽  
pp. F1221-F1230 ◽  
Author(s):  
Xiaoming Ren ◽  
Timothy D. Myles ◽  
Kyle N. Grew ◽  
Wilson K. S. Chiu
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Carbon Dioxide Transport ◽  
Direct Methanol ◽  
Methanol Fuel Cell

scholarly journals Analysis on Geometry of Fluid Flow Manifold in Direct Methanol Fuel Cell

2020 ◽  
Vol 5 (8) ◽  
pp. 822-827
Author(s):  
Govindarasu Ramasamy ◽  
R. Kavitha ◽  
M. Nambiraj ◽  
R. Praveen Kumaar ◽  
N. N. Harish Kumar
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Flow Distribution ◽  
High Energy ◽  
High Energy Density ◽  
No Production ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Fuel cells are the devices that convert chemical energy into electrical energy through an electrochemical reaction. Direct Methanol Fuel cell (DMFC) is a proton exchange membrane fuel cells in which methanol is used as fuel. Its high energy density makes it suitable for fuel cells. Even though carbon dioxide is produced, there is no production of sulfur or nitrogen oxides. The problems usually occurred while working with DMFC are methanol crossover, condensation of methanol, water management and carbon dioxide release. In that the uneven flow distribution, accumulation of carbon dioxide bubbles in the fuel cell are the major issues in DMFC. To prevent these issues, this work focuses on the theoretical and experimental studies on development of fuel cells with special importance to geometry of the manifold. This paper provides the optimal solution for preventing uneven flow distribution that is the usage of squoval shaped manifold which is the combination of both square and circle. Performance of DMFC with squoval shape manifold is evaluated experimentally and is compared with square shape manifold and rectangle shape manifold geometry design.

Simulation of Mass Transfer in Anode Flow Field of a Passive Direct Methanol Fuel Cell

2015 ◽  
Vol 740 ◽  
pp. 59-62
Author(s):  
Hui Hui Shang ◽  
Fang Ye ◽  
Yan Qing Xue ◽  
Hang Guo ◽  
Chong Fang Ma
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Fuel Cell ◽  
Flow Field ◽  
Direct Methanol Fuel Cell ◽  
Volume Fraction ◽  
Three Dimensional Model ◽  
Flow Channels ◽  
Direct Methanol ◽  
Methanol Fuel Cell

A three-dimensional model for anode side of a passive direct methanol fuel cell with perforated flow field was developed to investigate the mass transfer in anode flow channels. The model simulated the transient two-phase flow in channels. With this model, the distribution of methanol concentration and carbon dioxide volume fraction in channels was presented. The variation of species on the central surface of flow channels was also gained. Simulation results show that the mass transfer in anode flow field of passive direct methonal fuel cells is affected by comprehensive effects of diffusion and convection. The results also indicate that the methanol transfer in channels is influenced by the carbon dioxide.

scholarly journals 709 Numerical simulation of carbon dioxide effect on direct methanol fuel cell performance

2008 ◽  
Vol 2008.21 (0) ◽  
pp. 293-294
Author(s):  
Daiki Ando ◽  
Yasunori Okano ◽  
Masao Sudoh ◽  
Kazuyoshi Furukawa ◽  
Yasuyuki Muramatsu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Numerical Simulation ◽  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cell
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