Fuel cell system for Honda CLARITY fuel cell

Tanaka, Sakuya; Nagumo, Kenji; Yamamoto, M.; Chiba, Hiroyuki; Yoshida, Keisuke; Okano, R.

doi:10.1016/j.etran.2020.100046

Cited by 114 publications

(24 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With this simple and economic configuration, potential damage to the electrolyte membrane can be prevented. In order to further reduce the size of the fuel cell stack, Honda used a waveform configuration which can improve the gas transfer performance of the gas channel and a cooling configuration that represents one unit (two cells) consisting of two MEAs and three separators [ 24 , 25 ]. In addition, with the help of a channeled resin frames positioned in the transition region of MEAs, optimized distribution of H 2 , air, and coolant from the manifold ports to active area has been achieved ( Figure 3 b).…”

Section: Structure Of Transition Regionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of the Transition Region of Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cells: Design, Degradation, and Mitigation

Yang

Tan

et al. 2022

Membranes

View full text Add to dashboard Cite

As the core component of a proton exchange fuel cell (PEMFC), a membrane electrode assembly (MEA) consists of function region (active area), structure region, and transition region. Situated between the function and structure regions, the transition region influences the reliability and durability of the MEA. The degradation of the electrolyte membrane in this region can be induced by mechanical stress and chemical aggression. Therefore, prudent design, reliable and robust structure of the transition region can greatly help avoid early failure of MEAs. This review begins with the summarization of current structural concepts of MEAs, focusing on the transition region structures. It can be seen that aiming at better repeatability and robustness, partly or total integration of the materials in the transition region is becoming a development trend. Next the degradation problem at the transition region is introduced, which can be attributed to the hygro-thermal environment, free radical aggression, air pressure shock, and seal material decomposition. Finally, the mitigation approaches for the deterioration at this region are summarized, with a principle of avoiding the exposure of the membrane at the edge of the catalyst-coated membrane (CCM). Besides, durability test methods of the transition region are included in this review, among which temperature and humidity cycling are frequently used.

show abstract

Section: Structure Of Transition Regionmentioning

confidence: 99%

“… The seal member is integrated on the separator. ( a ) cross-sectional view of MEA [ 22 ]; ( b ) fuel cell structure and resin frame [ 25 ]. …”

Section: Figurementioning

confidence: 99%

A Review of the Transition Region of Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cells: Design, Degradation, and Mitigation

Yang

Tan

et al. 2022

Membranes

View full text Add to dashboard Cite

show abstract

“…where I is the current stored in the battery and it is the current drawn at that particular second. For the fuel cell powertrain (FCPT), a proton-exchange membrane fuel cell (PEMFC) is modelled based on the polarisation curve of Toyota Mirai 2017, which is taken as the reference [36,37]. The portion of the output power of the fuel cell required to maintain the working condition is termed as the balance of plant (BOP).…”

Section: Model Developmentmentioning

confidence: 99%

From Microcars to Heavy-Duty Vehicles: Vehicle Performance Comparison of Battery and Fuel Cell Electric Vehicles

et al. 2021

View full text Add to dashboard Cite

Low vehicle occupancy rates combined with record conventional vehicle sales justify the requirement to optimize vehicle type based on passengers and a powertrain with zero-emissions. This study compares the performance of different vehicle types based on the number of passengers/payloads, powertrain configuration (battery and fuel cell electric configurations), and drive cycles, to assess range and energy consumption. An adequate choice of vehicle segment according to the real passenger occupancy enables the least energy consumption. Vehicle performance in terms of range points to remarkable results for the FCEV (fuel cell electric vehicle) compared to BEV (battery electric vehicle), where the former reached an average range of 600 km or more in all different drive cycles, while the latter was only cruising nearly 350 km. Decisively, the cost analysis indicated that FCEV remains the most expensive option with base cost three-fold that of BEV. The FCEV showed notable results with an average operating cost of less than 7 cents/km, where BEV cost more than 10 €/km in addition to the base cost for light-duty vehicles. The cost analysis for a bus and semi-truck showed that with a full payload, FCPT (fuel cell powertrain) would be more economical with an average energy cost of ~1.2 €/km, while with BPT the energy cost is more than 300 €/km.

show abstract

“…[1][2][3] Automotive manufacturers worldwide are devoted to popularizing this technology. 4,5 However, the commercialization of PEM fuel cells is hindered by high cost and poor durability. The fuel cells for vehicles must operate under harsh conditions involving frequent startup-shutdown, idling, dynamic load, and high power operation.…”

Section: Introductionmentioning

confidence: 99%

A reduced‐dimension dynamic model of a proton‐exchange membrane fuel cell

Fang²,

et al. 2021

Intl J of Energy Research

View full text Add to dashboard Cite

The existing models of proton-exchange membrane fuel cells, such as computational fluid dynamics and lumped-parameter models, cannot provide a comprehensive description of mass-transport mechanisms without incurring a high computational load. This paper proposes a reduced-dimension dynamic model of fuel cells that considers main mass-transport mechanisms, including two-phase flow in the gas diffusion layer. Under the quasi-steady-state assumption, the distributions of liquid water and gas species in the through-plane direction are calculated through analytical expressions. Thus, the reduceddimension fuel-cell model can obtain a similar output to a one-dimensional model without needing to solve partial differential equations. The reduceddimension model was validated on steady state and transient experimental data. The computational load of the reduced-dimension model was only 1/60 that of a one-dimensional model. To simulate the transient behavior of the fuel-cell system, the reduced-dimension fuel-cell model was integrated with a comprehensive balance-of-plant model. The system model could execute longtime-scale transient simulations and evaluate the internal states of the fuel cell while minimizing the computing resources. Finally, the contradiction between the power response rate and oxygen starvation under the load-delay strategy was analyzed with the system model, and the delay duration was optimized.Results verify the potential of the reduced-dimension model in controloriented applications. Novelty statementThe existing models of proton-exchange membrane fuel cells, such as computational fluid dynamics and lumped-parameter models, cannot provide a comprehensive description of mass-transport mechanisms without incurring a high computational load. This work proposes a reduced-dimension dynamic model of fuel cells that considers main mass-transport mechanisms, including two-phase flow in the gas diffusion layer. Under the quasi-steady-state assumption, the distributions of liquid water and gas species in the through-plane direction are calculated through analytical expressions. Thus, the reduceddimension fuel-cell model can obtain a similar output to a one-dimensional model without needing to solve partial differential equations. The

show abstract

Fuel cell system for Honda CLARITY fuel cell

Cited by 114 publications

References 1 publication

A Review of the Transition Region of Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cells: Design, Degradation, and Mitigation

A Review of the Transition Region of Membrane Electrode Assembly of Proton Exchange Membrane Fuel Cells: Design, Degradation, and Mitigation

From Microcars to Heavy-Duty Vehicles: Vehicle Performance Comparison of Battery and Fuel Cell Electric Vehicles

A reduced‐dimension dynamic model of a proton‐exchange membrane fuel cell

Contact Info

Product

Resources

About