Health-Wise Energy Management Strategies in Fuel Cell Hybrid Electric Vehicles: Tools to optimize performance and reduce operational costs

IEEE Electrification Magazine, Journal Year: 2024, Volume and Issue: 12(2), P. 80 - 88

Published: June 1, 2024

The primary objective of an energy management strategy (EMS) in fuel cell (FC) hybrid electric vehicles (HEVs) is twofold: to minimize hydrogen consumption and extend the lifetime power sources. However, these sources are susceptible degradation under various operational ambient conditions, be it from cycling or calendar aging. To achieve optimal performance, EMS must consider variations sources' characteristics due degradation. This article succinctly discusses necessity employing a health-wise indispensable tools requires, such as health-monitoring techniques. Subsequently, study investigates impact on total cost low-speed urban FC-HEV truck through simulations. simulation results demonstrate that EMSs can significantly reduce mitigate FC battery degradations, resulting noteworthy reduction cost.

Language: Английский

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Synthesis of MnOOH and its application in a supporting hexagonal Pd/C catalyst for the oxygen reduction reaction

Nanoscale, Journal Year: 2023, Volume and Issue: 16(1), P. 373 - 383

Published: Nov. 23, 2023

With the expansion of global energy problems and deepening research on oxygen reduction reaction (ORR) in alkaline media, development low cost high electrocatalytic performance catalysts has become a hotspot. In this study, hexagonal Pd-C-MnOOH composite catalyst was prepared by using triblock copolymer P123 as reducing agent protective agent, sucrose carbon source self-made MnOOH carrier under hydrothermal conditions. When Pd load is 20% C/MnOOH ratio 1 : 1, Pd-C-MnOOH-1 obtained one-step method highest ORR activity stability system. At 1600 rpm, limiting diffusion current density half-wave potential electrocatalyst are -4.78 mA cm-2 0.84 V, respectively, which better than those commercial 20%Pd/C catalyst. According to Koutecky-Levich (K-L) equation linear fitting results, electron transfer number 20%Pd-C-MnOOH-1 for 3.8, similar that 4-electron process. After 1000 cycles, -4.61 cm-2, only decreases 3.7%, indicating good stability. The reason improvement conductivity layer formed original carbonization, regular highly active particles synergistic catalytic effect between MnOOH. introducing copolymers synthesis oxides metal-oxide expected be extended other electrocatalysis fields.

Language: Английский

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The Application of Machine Learning for Green Hydrogen Production

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

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Dynamics of direct hydrocarbon PEM fuel cells

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 1, 2024

Hydrocarbon fuels contain approximately 50 times more energy per unit mass than commercial batteries, thus converting even 10% of the contained in hydrocarbon to electrical could present a mass-efficient source batteries. Considering storability compared hydrogen, viability direct polymer electrolyte membrane fuel cells was examined. With extremely pure (> 99.99%) propane, cell Open-Circuit Voltage (OCV) only 0.05 V and produced negligible power. However, with addition trace quantities unsaturated hydrocarbons, had an OCV 0.85 power, after discontinued. At sufficiently high current densities, power output gradually decreased then rapidly "extinguished" but by periodically shutting off for short time intervals average density be increased significantly. Chemical analysis revealed that no significant amounts intermediates or CO were effluent conversion CO2 H2O nearly complete. An analytical model incorporating relative rates active anode catalyst sites inactive vice versa developed interpret this behavior. The predictions consistent experimental observations; possible physical mechanisms are discussed.

Language: Английский

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Machine learning in PEM water electrolysis: A study of hydrogen production and operating parameters

Computers & Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 108954 - 108954

Published: Nov. 1, 2024

Language: Английский

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