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Ali Jabbary

    Ali Jabbary

    • M.D. Mechanical Engineering in Energy Conversion Field • Professional in the CFD field and fluid flow simulation • Expert in Fuel Cell designs engineering and development • Advanced Programming in Python, C/C++, MATLAB, and Java • Fluency in English Language and Advanced English Texts • Experienc... moreedit
    • Nima Ahmadiedit
    This article presents new PEM fuel cell models with hexagonal and pentagonal designs. After observing cell performance improvement in these models, we optimized them. Inlet pressure and temperature were used as input parameters, and... more
    This article presents new PEM fuel cell models with hexagonal and pentagonal designs. After observing cell performance improvement in these models, we optimized them. Inlet pressure and temperature were used as input parameters, and consumption and output power were the target parameters of the multi-objective optimization algorithm. Then we used artificial intelligence techniques, including deep neural networks and polynomial regression, to model the data. Next, we employed the RSM (Response Surface Method) method to derive the target functions. Furthermore, we applied the NSGAII multi-objective genetic algorithm to optimize the targets. Compared to the base model (Cubic), the optimized Pentagonal and Hexagonal models averagely increase the output current density by 21.819% and 39.931%, respectively.
    This article presents new PEM fuel cell models with hexagonal and pentagonal designs. After observing cell performance improvement in these models, we optimized them. Inlet pressure and temperature were used as input parameters, and... more
    This article presents new PEM fuel cell models with hexagonal and pentagonal designs. After observing cell performance improvement in these models, we optimized them. Inlet pressure and temperature were used as input parameters, and consumption and output power were the target parameters of the multi-objective optimization algorithm. Then we used artificial intelligence techniques, including deep neural networks and polynomial regression, to model the data. Next, we employed the RSM (Response Surface Method) method to derive the target functions. Furthermore, we applied the NSGAII multi-objective genetic algorithm to optimize the targets. Compared to the base model (Cubic), the optimized Pentagonal and Hexagonal models averagely increase the output current density by 21.819% and 39.931%, respectively.
    ABSTRACT A numerical 3D procedure is presented based on the Finite Volume Method to solve the governing equations of Proton Exchange Membrane Fuel Cell (PEMFC) with rhombus design. We evaluated these equations in both the anode and... more
    ABSTRACT A numerical 3D procedure is presented based on the Finite Volume Method to solve the governing equations of Proton Exchange Membrane Fuel Cell (PEMFC) with rhombus design. We evaluated these equations in both the anode and cathode gas channels. In the present research, we examined the impact of rhombus design on the output characteristics of PEMFC under appropriate operating conditions and verified the outputs with experimental data. The water accumulation has a significant effect on fuel cell performance. We studied different aspects of the fuel cell to obtain the water accumulation and characteristics’ distribution of fluid flow in the gas channel and their influence on the performance of PEMFC. The current intensity and power density are the most critical elements of a fuel cell. Model B has increased the current density by one compared to the base model. The cell power consumption has been reduced by 1/4 and 1/8 ratios. The pressure drop in the presented models has been significantly reduced and controlled. The electrical power generated by Model B is 1.5 higher than the base model. Proton Exchange Membrane Fuel Cell (PEMFC) governing equations.
    A numerical 3D procedure is presented based on the Finite Volume Method to solve the Proton Exchange Membrane Fuel Cell (PEMFC) governing equations with rhombus design. We evaluated these equations in both the anode and cathode gas... more
    A numerical 3D procedure is presented based on the Finite Volume Method to solve the Proton Exchange Membrane Fuel Cell (PEMFC) governing equations with rhombus design. We evaluated these equations in both the anode and cathode gas channels. In the present research, we examined the impact of rhombus design on the output characteristics of PEMFC under appropriate operating conditions and verified the outputs with experimental data. Water accumulation has a significant effect on fuel cell performance. We studied different aspects of the fuel cell to obtain the water accumulation and characteristics' distribution of fluid flow in the gas channel and their influence on the performance of PEMFC. The current intensity and power density are the most critical elements of a fuel cell. Model B has increased the current density by one A/cm^2 compared to the base model. The cell power consumption has been reduced by 1/4 and 1/8 ratios. The pressure drop in the presented models has been significantly reduced and controlled. The electrical power generated by Model B is 1.5 w/cm^2 higher than the base model. Proton Exchange Membrane Fuel Cell (PEMFC) governing equations. ARTICLE HISTORY
    Numerous researchers use numerical simulations to precisely recognize the processes before mass-production to provide a basic model for optimizing the fuel cell. In this study, we presented brand-new designs for cylindrical PEMFCs in the... more
    Numerous researchers use numerical simulations to precisely recognize the processes before mass-production to provide a basic model for optimizing the fuel cell. In this study, we presented brand-new designs for cylindrical PEMFCs in the Three-Dimensional form. We used the Finite Volume Method to simulate the fuel cell processes and established a genuine correspondence between our simulation results and valid outcomes. We introduced innovative designs to increase the performance of cylindrical polymer fuel cells. Then, we examined the effects of progressive developments in cross-section design, the fuel cell structure, the output current densities, and, eventually, the flooding phenomenon. The results revealed the optimum capacity of the cylindrical fuel cell compared with an elliptical cross-section. Due to more extensive transport zones and pressure drop effects, we need to find the optimum cell capacity to pass the reactive regions.