Stokiyometri Oranının İki Hücreli PEM Yakıt Hücresi Yığını Performansına Etkisinin İncelenmesi

Cellek, Muhammed Salih; Bilgili, Muhittin

doi:10.29109/gujsc.799620

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…Compared with Yan et al's [32] similar search, the results were found to be parallel. Within this study, the influence of stoichiometry was also examined, and the numerical outcomes were compared to those of Cellek and Bilgili's [33] work. As a result of the analysis, the optimum operating temperature has been reached, and the system shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Numerical investigation of the effect of operating conditions on the performance parameters of PEM fuel cells

Bilen,

Tarhan,

Çelik

2023

International Journal of Energy Studies

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The operating parameters of proton exchange membrane fuel cells (PEMFCs) are very effective at generating heat. The study examined and evaluated parameters that can help determine fuel cell performance. The parameters and structures used in systems have been examined. In this context, performance evaluations have been made by performing electrochemical analyses of PEMFCs. Evaluations about how the study parameters affect the performance was made on MATLAB and the results were presented. As a result of the study, it was seen that the operating temperature increased the efficiency until it reached certain limits. On the other hand, although the performance-enhancing effects of the working pressure are observed, high pressure appears as an obstacle. Air stoichiometric rate is another variable that affects fuel cell performance. While high stoichiometric rates improve performance, they can adversely affect the membrane. According to the simulation result, it was found that the working temperature, working pressure and air stockiometry should be optimized together.

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Section: Resultsmentioning

confidence: 99%

Numerical investigation of the effect of operating conditions on the performance parameters of PEM fuel cells

Bilen,

Tarhan,

Çelik

2023

International Journal of Energy Studies

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“…The energy need in the world is increasing day by day due to developing technology, increasing population and the search for continuous economic and industrial development (Cellek and Bilgili, 2021;Gonzatti and Farret, 2017;Hernández-Gómez et al, 2020). Today, the decrease in fossil energy sources such as oil and natural gas, which meet a large part of this need, and the increasing damage to the environment lead scientists to various alternative energy sources (Liu et al, 2023;Sadeghi et al, 2021;Wang et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Contrary to the harmful emissions resulting from the combustion of fossil fuels, only water is formed as a by-product as a result of the reactions occurring in fuel cells. For this reason, fuel cells are seen as an environmentally friendly power source (Cellek and Bilgili, 2021). In addition, these devices have advantages such as high efficiency, quiet operation, fuel flexibility and low maintenance requirements.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effect of Operating Parameters on Nernst Voltage in Hydrogen-Oxygen Fuel Cells

Bilgili,

Gönülaçar

2024

Isı Bilimi Ve Tekniği Dergisi

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In hydrogen-oxygen fuel cells, operating parameters have an influence on the maximum expected open circuit (Nernst) voltage. Even though fuel cells have been the subject of many research, none of them have theoretically investigated the impact of various operating parameters, particularly concerning Nernst voltage and maximum thermodynamic efficiency. In this study, a computer program was developed to theoretically determine the effect of various operating parameters on the Nernst voltage in hydrogen-oxygen fuel cells. This computer program was developed in MATLAB to mathematically examine the effects of hydrogen and oxygen mole ratios, anode and cathode pressures, and operating temperatures on the maximum expected open circuit voltage. When calculating Nernst voltages and maximum thermodynamic efficiency for fuel cell reactions containing water as a by-product, the effects of higher heating value (HHV) and lower heating value (LHV) are also considered in the solutions. As a result, it was also concluded that temperature increase reduces the fuel cell Nernst voltage and maximum thermodynamic efficiency. Therefore, it was observed from the figures that the best conditions for the Nernst voltage occur when HHV is assumed, the temperature is 353 K, the mole ratios of hydrogen and oxygen are 1.0, the anode and cathode pressures are 5 atm and 6 atm, respectively. In terms of thermodynamic efficiency, it was determined that there was a maximum increase of 92.2% in the LHV assumption compared to the HHV assumption at the temperature of 1000 K, provided that other operating parameters were kept constant.

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“…Polymer electrolyte membrane (PEM) fuel cell has benefits such as low operating temperature, high power density, low weight and eco-friendly nature [1][2][3]. Due to these benefits, PEM fuel cells are considered as one of the promising clean energy conversion systems of the future [4][5]. In today's world, the number of studies on power electronics circuit structures are increasing day by day for highly efficient renewable energy sources.…”

Section: Introduction (Gi̇ri̇ş)mentioning

confidence: 99%

Enhanced Control of Polymer Electrolyte Membrane Fuel Cell Fed Basic Series Positive Super Voltage Lift Luo Converter Using Interval Type-2 Fuzzy Logic

Gani,

Uçar

2024

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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An eco-friendly and renewable energy source, Polymer Electrolyte Membrane (PEM) fuel cells offer various advantages such as stability and efficiency. The present study designs a basic series positive super voltage lift Luo (PSVLL) converter which, to produce a PEM fuel cell with a low output voltage, yields a low input current ripple and a high voltage conversion ratio. Additionally, it proposes an interval type-2 fuzzy logic (IT2FL) controller to maintain the output voltage of the proposed converter at a specified value. The model, which consists of a fuel cell and a basic series PSVLL converter, was designed in Matlab/Simulink simulation environment. The enhanced control of the proposed converter output voltage was performed using an IT2FL controller. The simulation results demonstrated that using the proposed controller, the PEM fuel cell fed basic series PSVLL converter reached the specified boundary current and voltage variation ratios under nominal operating conditions and at different reference voltage ranges within a short duration.

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Stokiyometri Oranının İki Hücreli PEM Yakıt Hücresi Yığını Performansına Etkisinin İncelenmesi

Cited by 6 publications

References 16 publications

Numerical investigation of the effect of operating conditions on the performance parameters of PEM fuel cells

Numerical investigation of the effect of operating conditions on the performance parameters of PEM fuel cells

Investigation of the Effect of Operating Parameters on Nernst Voltage in Hydrogen-Oxygen Fuel Cells

Enhanced Control of Polymer Electrolyte Membrane Fuel Cell Fed Basic Series Positive Super Voltage Lift Luo Converter Using Interval Type-2 Fuzzy Logic

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