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.
Arico.A.S, et al., “Influence of flow field design on the performance of a direct methanol fuel cell”; Journal of Power Sources, 91(2000): pp 202–209.
Chung-Hsien Chen, et al., “Flow distribution in the manifold of PEM fuel cell stack”; Journal of Power Sources, 173(2007): pp 249–263.
DehuaiZenga, et al., “Qualitative investigation on effects of manifold shape on methanol steam reforming for hydrogen production”, Renewable Energy, 39(2012): pp 313-322.
Govindarasu R, et al., “Investigation of Flow Maldistribution in proton exchange membrane fuel cell”, International journal of renewable energy research, , 2(2012): pp 653-656.
Govindarasu R., et al., “Experimental studies on catalysts in Direct Methanol Fuel Cell”, Elixir Int J of Chemical Engineering, 73(2014): pp 26330-26332.
GovindarasuR., et al., ‘‘Analysis of catalyst technology in direct methanol PEM fuel cell. Proc. of IEEE Int Con on Research and Development Prospects in Engg and Tech, Nagapattinam, 2013, 1, pp 190-195.
Ismail.A, et al., “Mass and heat transport in direct methanol fuel cells”; Journal of Power Sources, 196 (2011): pp 9847– 9855.
Jimmy C.K. et al., “Geometric strategies for attainment of identical outflows through all of the exit ports of a distribution manifold in a manifold system”; Applied Thermal Engineering, 29(2009): pp 3552–3560.
Joon-Ho Koh, et al., “Pressure and flow distribution in internal gas manifolds of a fuel-cell stack”; Journal of Power Sources, 115(2003): pp 54–65.
Junye Wang, “Theory of flow distribution in manifolds”; Chemical Engineering Journal, 168(2011):pp 1331–1345
JunyeWanga, HualinWang “Discrete approach for flow field designs of parallel channel configurations in fuel cells” International journal of hydrogen energy; 37(2012): pp 10881-10897.
Kapadia.S, et al., “Channel shape optimization of solid oxide fuel cells using advanced numerical techniques”; Computers & Fluids, 41(2011): pp 41–50.
Krewer.U, et al., “Direct methanol fuel cell (DMFC): analysis of residence time behaviour of anodic flow bed”; Chemical Engineering Science 59(2004): pp 119 – 130.
MahshidMohammadia, et al., “Numerical study of flow uniformity and pressure characteristics within a microchannel array with triangular manifolds”; Computers and Chemical Engg, 52(2013): pp 134-144.
Kamaruddin, M. Z. F., et al., “An overview of fuel management in DMFCs”, J. Renew. Sustain. Ener. Rev., 24(2013): pp 557-565.
Manokaran A, et al., “A self-supported Direct methanol fuel cell system”, J. Chem. Sci., 123(2011): pp 343-347.
Maynard H.L., Meyers, J.P., “Miniature fuel cells for portable power: design considerations and challenges”, J. Vac. Sci. Technol., 20(2002): pp 1287–1297.
Pandiyan.S, et al., “Design and analysis of a proton exchange membrane fuel cells”, Renewable Energy, 49 (2013): pp 161-165.
Premkumar,S., et al., “Development of Direct Methanol Fuel Cell and Improving the efficiency”, Middle-East J of Scientific Research, 20(2014), pp 1277-1280.
Yang.H, T.S. Zhao “Effect of anode flow field design on the performance of liquid feed direct methanol fuel cells”; Electrochimica Acta 50(2005): pp 3243–3252.
Sander Ratso, et al., “Enhanced oxygen reduction reaction activity of iron containing nitrogen-doped carbon nanotubes for alkaline DMFC application”, Journal of Power sources 332, 129-138, 2016.
XH Yan, et al., “A monolayer graphene- Nafion sandwich membrane for direct methanol fuel cells”, Journal of power sources 311, 188-194, 2016.
S Al-Batty, et al., “Improvement of DMFC performance using a novel mordenite barrier layer”, Journal of Materials Chemistry A4(28), 10850-10857,2016.
Nianfang Wan, “High performance direct methanol fuel cell with thin electrolyte membrane”, Journal of power sources 354, 167-171, 2017.
Sander Ratso, et al., “Transition metal- nitrogen co-doped carbide- derived carbon catalysts for oxygen reduction reaction in alkaline direct methanol fuel cell”, Applied Catalysis B: Environmental 219, 276-286 (2017).
Luigi Osmieri, et al., “Performance of a Fe-N-C catalyst for ORR in direct methanol fuel cell: Cathode formulation optimization and short-tern durability”, Applied Catalysis B: Environmental 201, 253-265, 2017.
Yan Feng, et al., “A selective electrocatalyst based direct methanol fuel cell operated at high concentrations”, Science advances 3 (6), e1700580, 2017.
MohdShahbudin Masdar, et al., “Performance and stability of single and 6-cell stack passive direct methanol fuel cell for long-term operation”, International Journal of Hydrogen Energy 42(14), 9230-9242, 2017.
NattineeKrathumkhet, et al., “Preparation of sulfonated zeolite ZSM-5/ sulfonated polysulfone composite membranes as PEM for DMFC application”, Solid state ionics 319, 278-284, 2018.
Wang Zhiwei, et al., “Preparation and characterization of PVA proton exchange membranes containing phosphonic acid groups for direct methanol fuel cell applications”, Journal of Polymer Research 26(8), 200, 2019.
Park, J., Li, P., & Bae, J. (2012). Analysis of chemical, electrochemical reactions and thermo-fluid flow in methane-feed internal reforming SOFCs: Part I – Modeling and effect of gas concentrations. International Journal of Hydrogen Energy, 37(10), 8512–8531. doi: 10.1016/j.ijhydene.2012.02.110
Silva, Raquel & Oliveira, V.B. & Pinto, Alexandra & Rangel, Carmen. (2009). Electrochemical Energy Conversion in Direct Methanol Fuel Cells: The effects of Flow Fields.
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