Study the Effect of Various Operating Parameters of Proton Exchange Membrane

Ahmadi, Nima; Rezazadeh, Sajad; Mirzaee, Iraj

doi:10.3311/ppch.7577

Cited by 5 publications

(8 citation statements)

References 22 publications

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“…More information about the result and discussion of the base model can be referred to Refs. [7,8,15] (Fig. 5b).…”

Section: Numerical and Experimental Proceduresmentioning

confidence: 93%

“…Wang et al [14] studied the effect of some main operating parameters such as temperature and humidity on the efficiency of PEMFC, by using pure hydrogen, experimentally. Ahmadi et al [15] accomplished the numerical simulations and experimental tests to investigate about the important operating parameters. In this paper, performance of step-liked gas channels is investigated and observed that this design for channels enhances the efficiency of species transmitting to the reaction regions.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing the performance of polymer electrolyte membrane fuel cell by optimizing the operating parameter

Ahmadi

Rostami

2019

J Braz. Soc. Mech. Sci. Eng.

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In present paper it is tried to concentrate to the configurations of gas channels and gas diffusion layers influences on the performance of polymer electrolyte membrane fuel cell. At first, increasing the number of channels is considered and observed such that the best results are gained with the case of three channels. Afterward, effect of prominent GDLs is studied. The prominences size is one of the main parameters which affect the performance. For this purpose, radius (R) of prominences is grown gradually. The optimal performance is obtained in the case of R = 0.45. In addition, the inlet velocity of gas flow is surveyed. The results indicate that when the inlet velocity of gases is set about 0.2 m s −1 , the species diffusion is optimized. Also, the height of channels is investigated to find out the optimal channel height. It is found that the highest performance is achieved in channel height about h = 1 mm and R = 0.45 mm.

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“…More information about the result and discussion of the base model can be referred to Refs. [7,8,15] (Fig. 5b).…”

Section: Numerical and Experimental Proceduresmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Enhancing the performance of polymer electrolyte membrane fuel cell by optimizing the operating parameter

Ahmadi

Rostami

2019

J Braz. Soc. Mech. Sci. Eng.

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“…In this numerical simulation, the following dominant equations are operated. The momentum mass conservation and equations of Species are as follow [1]:…”

Section: Governing Equationsmentioning

confidence: 99%

“…The proton membrane fuel cell, a novel future energy source, applying a polymer membrane as electrolyte, has attracted intense attention chiefly for transportation and residential purposes [1]. The current fuel cell carries considerable advantages including; high efficiency, noiselessness and compliance with environmental standards, low temperature operation, fast start up, no liquid electrolyte and simple design [2].…”

Section: Introductionmentioning

confidence: 99%

The Study of Cylindrical Polymer Fuel Cell's Performance and the Investigation of Gradual Geometry Changes' Effect on Its Performance

Samanipour

Ahmadi

Mirzaee

et al. 2019

Period. Polytech. Chem. Eng.

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To achieve an optimal perception of cardinal processes and prior to prototype fabrication to fuel cell optimization, modeling is extensively used in industrial researches and applications to transfer mass and heat into small-sized channels. In the current study, Computational Fluid Dynamics is presented to cylindrical polymer fuel cell with circular and elliptical cross-section. Concurrently, the design of fractured electrode-membrane assembly is introduced. The simulations explicitly demonstrate comparing to Base case production, the fractured case of the Electrode Membrane Assembly produces more current. Likewise, a new design for cylindrical polymer fuel cell is illustrated. In the cylindrical design, both the effect of gradual geometric changes on the performance including radius changes and the transformation of cross-section from circle to ellipse has been investigated and compared to Base case. The obtained results displays the cylindrical fuel cell’s better performance compared to Base case. Accordingly, establishing wider passage, in same volume for reactive gases toward reaction areas, results in sharp increase in the performance. Finally, validating simulation with valid laboratory results, proper correspondence is achieved.

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“…Protonexchange membrane (PEM) fuel cells are a new energy resource for a variety of applications, including transportation. 1 PEM fuel cells have advantages over other fuel cells in the automotive industry, including high efficiency, high power density, high operating temperature, and bio-friendliness. 2 Fuel cells and systems have recently been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement ofproton‐exchangemembrane fuel cells through different gas injection channel geometries

Ashrafi

Pourmahmoud

Mirzaee

et al. 2022

Intl J of Energy Research

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The performance of proton-exchange membrane (PEM) fuel cells is strongly dependent on the geometry, flow channel configuration, and size. The present work numerically studies the performance of PEM fuel cells through the design of gas injection channels of different geometries. Computational fluid dynamics was adopted to solve the governing equations. The finite volume method was used to discretize and solve the equations. The channel geometries included spiral quasi (Model A), parallel (Model B), and pin (Model C), which have the same dimensions as the base serpentine model. The performance of the system was validated using the base model, and the simulation was carried out at a voltage of 0.6 V. The present study primarily aimed to utilize novel PEM fuel cell designs and improve their performance. The highest current density and output power were found to occur in Model C, whereas Model B had the lowest current density and output power. The temperature distribution was uniform in Model C and the base model. Moreover, Model C had the lowest water production; therefore, water immersion would not interrupt the fuel cell. On the other hand, Model B was observed to experience the largest liquid water generation, leading to an interrupted fuel cell. Model C had the lowest pressure loss and, therefore, lower power was required to pump gasses through the channel. It was found that Models C and B had the highest and lowest performances, respectively.

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Study the Effect of Various Operating Parameters of Proton Exchange Membrane

Abstract: A three-dimensional computational fluid dynamics in-house

Cited by 5 publications

References 22 publications

Enhancing the performance of polymer electrolyte membrane fuel cell by optimizing the operating parameter

Enhancing the performance of polymer electrolyte membrane fuel cell by optimizing the operating parameter

The Study of Cylindrical Polymer Fuel Cell's Performance and the Investigation of Gradual Geometry Changes' Effect on Its Performance

Performance improvement ofproton‐exchangemembrane fuel cells through different gas injection channel geometries

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