...., and Zhang, J., 2015, “Three-Dimensional Phase Field Based Finite Element Study on Li Intercalation-Induced Stress in Polycrystalline LiCoO 2 ,” J. Power Sources, 299 , pp. 57–65). This work demonstrates the importance to include anisotropic property in the model. LiCoO 2 has a layered structure, in which...

...M. Y. Abdollahzadeh Jamalabadi In this paper, the electrochemical impedance spectroscopy (EIS) method is applied through a transient in solid oxide fuel cell (SOFC) to obtain the dynamic modeling. Instead of measuring the current response of a fuel cell to a small sinusoidal perturbation in voltage...

... the compressed stack. Swelling during hygrothermal cycles can result in residual in-plane tensile stresses in the membrane and lead to mechanical degradation or failure through thinning or pinhole development. Numerical models can predict the stresses resulting from applied loads based on material...

...Mathieu Bressel; Belkacem Ould Bouamama; Daniel Hissel; Mickael Hilairet Fuel cell systems represent a promising alternative energy converter. In the past years, researches have been conducted for their modeling, control, and diagnosis. The model should accurately reproduce the behavior without...

... the superior water management and performance characteristics of the bio-inspired fuel cell in comparison to a conventional one. They also help elucidate the underlying transport mechanisms, validate the computational models, and guide the optimization of bio-inspired fuel cells. 1 Corresponding author...

... be effectively deployed in the region. In the first part of this work, an improved dynamic model of the Nexa 1.2 kW PEM fuel cell is developed using particle swarm optimization (PSO), and validated using experimental data. The developed model is then used to analyze the effect of the severe climate conditions...

... x , y , e x , e y = coordinates system for reduced model in streamwise and normal directions, m z , z = number of transferred electrons z ∘ = number of released electrons when alcohol is completely...

... amounts of carbon in typical SOFC temperature ranges. Furthermore, based on a validated computational fluid dynamics (CFD) simulation model, detailed heterogeneous reaction kinetics were used to directly simulate elementary carbon adsorbed to the reactive substrate surface. The amounts, spatial...

...). In this investigation, we developed a 3D simulation model to analyze the relationship between the operating conditions and the overall behavior of SOECs due to different contributions to the overpotential. Simulations were performed with various inlet gas compositions of cathode and anode, cathode thickness...

...Sh. Fakourian; M. Kalbasi; M. M. Hasani-Sadrabadi A one-dimensional analytical model of a direct methanol fuel cell (DMFC) was presented. This model was developed to describe the electrochemical reactions on the anode and cathode electrodes, and the transport phenomena in fuel cell consisting...

... of the internal state of the fuel cell energy conversion performance and evaluate its lifetime. The elaboration of causal tree offers powerful tools to a deductive analysis, which consists on seeking the various combinations of events leading to the fuel cell degradation. The parameters of fuel cell model...

...C. Wang In order to develop a predictive model of real cell performance, firm relationships and assumptions need to be established for the definition of the physical and microstructure parameters for solid oxide fuel cells (SOFCs). This study explores the correlations of microstructure parameters...

... separately. Simulation model of the MCFC–GT hybrid system (HS) was built. The simulator is based on a zero-dimensional modeling of the individual elements of the system. The simulator was used for mapping the main components behavior (MCFC and GT separately). On the basis of the obtained maps...

... increase and to manage the cathodic recirculation. It was necessary to develop a theoretical model in order to prevent abnormal plant startup conditions as well as motivated by economic considerations. This transient model of the emulator rig was developed using Matlab ® -Simulink ® environment to study...

... online January 28, 2015. Editor: Nigel M. Sammes. 30 10 2014 15 11 2014 28 01 2015 A numerical model has been developed for the performance analysis of solid oxide fuel cell (SOFC)/micro gas turbine (MGT) hybrid systems with prereforming of natural gas, in which a quasi two...

... constants from density functional perturbation simulations, and it can be achieved without resorting to the far more computationally expensive polarizable shell models to account for electronic dielectric effects within MD simulations. Karen Swider-Lyons (Naval Research Laboratory) provided extensive...

... sparger can be modeled as a power function of superficial gas velocity Re p  = 4.588 U g 1.2516 with R 2   = 0.8662, which indicates favorable reliability of the relationship between Reynolds number and superficial gas velocity. In a similar way, the relationship between Reynolds number...

... understood where exactly water tends to cumulate and how the design of the gas channel (GC) and gas diffusion layer (GDL) could be improved to limit water cumulation. In the present work, a three-dimensional lattice Boltzmann based model is implemented in order to simulate the water cumulation at the GC–GDL...

... a fuel cell toward the environment will be enhanced if the fuel used for its application comes from renewable sources such as ethanol. A method of modeling of the performance of DMFC was developed and validated with the experimental data obtained from a passive DMFC operated under varying methanol...

... performed for longer times, at fixed voltages. PEM, fuel cells bipolar plates modeling CFD multiple serpentine Proton exchange membrane fuel cells (PEMFCs) are one of the most promising energy converting devices, which are able to provide power in a very efficient manner with zero...