نتایج جستجو برای: pemfc

تعداد نتایج: 1182  

2010
Sung-chul Kim Shin-ichi Yamaura Yuta Shimizu Koji Nakashima Takanori Igarashi Akihiro Makino Akihisa Inoue

In this study, the newly designed bipolar plate for proton exchange membrane fuel cells (PEMFC) was produced by spray-coating the Ni65Cr15P16B4 metallic glassy alloy on Al plate. The Ni65Cr15P16B4 metallic glass was adopted as a coating material because of its excellent corrosion resistance and the high velocity oxy-fuel (HVOF) spray coating was used for the metallic glass deposition on the Al ...

Journal: :Sustainability 2023

The artificial rabbits optimization (ARO) algorithm is proposed in this article to find the optimum values for uncertain parameters proton exchange membrane fuel cell (PEMFC) model. voltage–current polarization curve of PEMFC nonlinear, and model used paper describe it Mann’s model, which has seven parameters. sum square errors (SSE) between ARO-based estimated voltages measured defines objecti...

Journal: :Energy Science & Engineering 2022

With the increasing popularity of fuel cells, improving their power density and cell system efficiency has become very topical. This study used curved wing vortex generator to generate a secondary flow in cathode channel improve performance proton exchange membrane (PEMFC). The wing's structure arrangement effects on cells were numerically simulated. Next, summarize combined operating condition...

Journal: :Energy Conversion and Management 2021

This paper aims to design a novel control strategy of single converter hybrid power system including Proton Exchange Membrane Fuel Cell (PEMFC) and super capacitors for electric vehicle applications. The objective be addressed in such systems is smooth the current PEMFC considering transient sinusoidal disturbance from load. Moreover, real-time applications, it required ensure operation by taki...

Journal: :Energies 2021

As a highly nonlinear system, the performance of proton exchange membrane fuel cell (PEMFC) is controlled by various parameters. If effects all parameters are considered during optimization, low working efficiency and waste resources will be caused. The development sensitivity analysis for can not only exclude which have slight on but also provide reasonable setting ranges boundary values simul...

2007
A. A. Shah

A transient PEMFC model with CO poisoning and mitigation by O2 bleeding and Ru-containing catalyst A.A. Shah a,∗, P.C. Sui b, G.-S. Kim c, S. Ye c a Queen’s, RMC Fuel Cell Research Centre, 945 Princess Street, Kingston, Ont. K7L 5L9, Canada b Institute for Integrated Energy Systems, University of Victoria, Victoria, BC V8W 3P6, Canada c Ballard Power Systems, 4343 North Fraser Way, Burnaby, BC ...

Journal: :International Journal of Hydrogen Energy 2021

Developing self-humidifying membrane electrode assembly (MEA) is of great significance for the practical use proton exchange fuel cell (PEMFC). In this work, a phosphoric acid (PA)-loaded Schiff base networks (SNW)-type covalent organic framework (COF) proposed as anode catalyst layer (CL) additive to enhance PEMFC performance under low humidity conditions. The unique polymer structure and immo...

Journal: :International Journal of Hydrogen Energy 2022

The proton exchange membrane fuel cell (PEMFC) stack is a key component in the cell/battery hybrid vehicle. Thermal management and optimized control of PEMFC under real driving cycle remains challenging issue. This paper presents new vehicle model, including simulations diver behavior, dynamic, unit, energy stack, cooling system, battery, DC/DC converter, motor. model had been validated against...

2013
Cheng Wang Mingyan He Ziping Huang Pengtao Sun

For better performance, different structures for the anode and cathode gas chan21 nels are used in the PEMFC practical design. This asymmetrical structure can keep 22 the balance of pressures on both sides of the membrane. Thus the water manage23 ment in cathode can be improved and the duration of fuel cell can be prolonged. An 24 unstructured grid partitioned by tetrahedra or triangles can be ...

2013
Mustafa Koz Satish G. Kandlikar

Oxygen transport resistance at the air flow channel and gas diffusion layer (GDL) interface is needed in modelling the performance of a proton exchange membrane fuel cell (PEMFC). This resistance is expressed through the non-dimensional Sherwood number (Sh). The effect of the presence of a droplet on Sh is studied numerically in an isolated air flow channel using a commercially available packag...

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