Design and Operational Characteristics of Automotive PEM Fuel Cell Stacks

Barbir, Frano; Fuchs, Michel; Husar, Attila; Neutzler, Jay

doi:10.4271/2000-01-0011

Cited by 25 publications

(16 citation statements)

References 3 publications

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“…Fuel cell models at the cell level are presented in [2][3][4]. Studies concerned with optimum operating conditions are discussed in [5][6][7][8][9][10][11][12]. The characteristics of the low pressure and high pressure fuel cell systems are addressed with regard to the system efficiency and transient response in [7,13,14].…”

Section: Introductionmentioning

confidence: 99%

Optimization of fuel cell system operating conditions for fuel cell vehicles

Zhao

Burke

2009

Journal of Power Sources

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Proton Exchange Membrane fuel cell (PEMFC) technology for use in fuel cell vehicles and other applications has been intensively developed in recent decades. Besides the fuel cell stack, air and fuel control and thermal and water management are major challenges in the development of the fuel cell for vehicle applications. The air supply system can have a major impact on overall system efficiency. In this paper a fuel cell system model for optimizing system operating conditions was developed which includes the transient dynamics of the air system with varying back pressure. Compared to the conventional fixed back pressure operation, the optimal operation discussed in this paper can achieve higher system efficiency over the full load range. Finally, the model is applied as part of a dynamic forward-looking vehicle model of a load-following direct hydrogen fuel cell vehicle to explore the energy economy optimization potential of fuel cell vehicles.

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Section: Introductionmentioning

confidence: 99%

Optimization of fuel cell system operating conditions for fuel cell vehicles

Zhao

Burke

2009

Journal of Power Sources

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“…They are mainly oriented perpendicular (parallel to the surface in picture) [6] to the plate surfaces which is an expected feature for the effect of pressure during compression moulding. In our case, this particular effect is beneficial for higher bulk conductivity since this general orientation of the graphite particles along the thickness direction will improve overall electrical conductivity.…”

Section: Resistivity / ω ωCmmentioning

confidence: 99%

“…Further cost effective improvement of overall properties by reinforcing with different components and increase in power density is beneficial for fuel cell technology [6] and it can also overcome the shortcomings (low mechanical strength) of graphite-polymer composite bipolar plates.…”

Section: Introductionmentioning

confidence: 99%

Development of Low‐Cost Advanced Composite Bipolar Plate for Proton Exchange Membrane Fuel Cell�

Kakati

Mohan²

2008

Fuel Cells

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The bipolar plate is one of the most imperative components of proton exchange membrane fuel cells (PEMFC) which consumes up to 80% of weight and near about 50% of the total cost of the cell. Development of cost‐effective composite bipolar plate with high electrical conductivity and high mechanical strength is both technically and economically demanding. In this paper, a low‐cost advanced composite bipolar plate is developed by bulk moulding compression (BMC) technique. It is clear from the experiments that by increasing the matrix volume fraction, bulk density and electrical conductivity of a composite bipolar plate decrease but shore hardness increases. Test results clearly show that best overall properties are achieved when a constant volume fraction of polymer matrix and natural graphite is reinforced with synthetic graphite, carbon black and carbon fibre. This bipolar plate was found to have high conductivity, less porosity and high mechanical strength. The I–V characteristics in single cell test exhibited more uniform power density at both higher and lower current densities

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“…Fuel cells have achieved > 1 W cm À2 peak power, but in normal operation ðV cell 50:6 VÞ achievable power density is 0.6-0.7 and 0:320:4 W cm À2 in high-efficiency operation ðV cell 50:7 VÞ: Figure 1 shows typical fuel cell and fuel cell stack performance [20,21]. The goal of fuel cell development is to keep increasing power density.…”

Section: Power Densitymentioning

confidence: 99%

Status and development of PEM fuel cell technology

Barbir¹,

Yazici²

2008

Int. J. Energy Res.

146

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SUMMARYFuel cells are an emerging technology with applications in transportation, stationary and portable power generation, with outputs ranging from mW to MW. The most promising and most widely researched, developed and demonstrated type of fuel cells is proton exchange membrane (PEM) fuel cell. State of the art in PEM fuel cell technology and challenges in their development and widespread applications are discussed.

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Design and Operational Characteristics of Automotive PEM Fuel Cell Stacks

Cited by 25 publications

References 3 publications

Optimization of fuel cell system operating conditions for fuel cell vehicles

Optimization of fuel cell system operating conditions for fuel cell vehicles

Development of Low‐Cost Advanced Composite Bipolar Plate for Proton Exchange Membrane Fuel Cell�

Status and development of PEM fuel cell technology

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