Development of a lightweight fuel cell vehicle

Hwang, Jenn Jiang; Wang, D.Y.; Shih, Nai-Chien

doi:10.1016/j.jpowsour.2004.08.056

Cited by 89 publications

(44 citation statements)

References 3 publications

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“…A significant amount of research has been devoted to the development of PEM fuel cells technologies over the past few years; however, there are still major challenges which need to be overcome, especially in prolonging the lifetime of the PEM fuel cells [3]. One such issue is non-uniform current distribution within the cell which results in local over-heating, accelerated ageing and lower power output than expected [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Current distribution and cathode flooding prediction in a PEM fuel cell

Jamekhorshid

Karimi

Noshadi

2011

Journal of the Taiwan Institute of Chemical Engineers

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Abstract-Non-uniform current distribution in polymer electrolyte membrane fuel cells results in local over-heating, accelerated ageing, and lower power output than expected. This issue is very critical when fuel cell experiences water flooding. In this work, the performance of a PEM fuel cell is investigated under cathode flooding conditions. Two-dimensional partially flooded GDL models based on the conservation laws and electrochemical relations are proposed to study local current density distributions along flow fields over a wide range of cell operating conditions. The model results show a direct association between cathode inlet humidity increases and that of average current density but the system becomes more sensitive to flooding. The anode inlet relative humidity shows a similar effect. Operating the cell at higher temperatures would lead to higher average current densities and the chance of system being flooded is reduced. In addition, higher cathode stoichiometries prevent system flooding but the average current density remains almost constant. The higher anode stoichiometry leads to higher average current density and higher sensitivity to cathode flooding.

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Section: Introductionmentioning

confidence: 99%

Current distribution and cathode flooding prediction in a PEM fuel cell

Jamekhorshid

Karimi

Noshadi

2011

Journal of the Taiwan Institute of Chemical Engineers

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“…A thermal modelling methodology is presented for water cooled PEM fuel cells, in order to be used in automotive applications [25]. A general thermal modelling approach for a PEMFC stack consists in following the heat flow connections between each different layer in the cell: the steel endplates, the graphite plates, the synthetic joints, the anode channels, the membrane, the gases collectors and the cathode channels.…”

Section: Proposed Thermal Modelling Methodologymentioning

confidence: 99%

Control-Oriented Thermal Modeling Methodology for Water-Cooled PEM Fuel-Cell-Based Systems

Rojas

Kunusch

Ocampo‐Martínez

et al. 2015

IEEE Trans. Ind. Electron.

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Abstract-In this paper, a new control-oriented modelling methodology for the thermal dynamics of water-cooled Proton Exchange Membrane Fuel Cells (PEMFC) is presented and validated. This methodology is not only useful for control applications, but also can be used for predicting the temperature variation across the stack, allowing to monitor its operation. The methodology has been validated in a real 600W, 20-cells, water cooled PEMFC, with encouraging results for both the stationary and the transient states. Results show that the proposed methodology is accurate and suitable for control purposes

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“…LEDs are likely to capture a larger portion of the market for nearly every type of lighting, including displays of electronic devices, streetlights, commercial signage, traffic lights, large public information screens, and LED TVs. The other part of the Takeoff Program promoted wind power generation, biofuels, hydrogen and fuel cells (Hwang et al, 2004;Hwang, 2006;Chang et al, 2007) energy information and communication technology, and electric vehicles (Hwang et al, 2005). The government aims to develop Taiwan into a global supplier of wind power generation systems and help the island become a key production base for electric vehicles and fuel cell system assembly in the Asia-Pacific region.…”

Section: Deregulationmentioning

confidence: 99%